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Pathology - Chronic Myelogenous Leukemia (CML)
The Philadelphia chromosome t9;22 is linked to the formation of a hybrid gene ber-abl, which encodes a protein with tyrosine kinase activity.
Most commonly observed in individuals of middle age.
Study of the nature and causes of diseases.
Bone marrow: Hypercellular: elevated levels of myeloid progenitor cells
Peripheral blood smear reveals leukocytosis characterized by a combination of fully developed and undeveloped myeloid cells.
Presenting Symptoms
The patient has symptoms of low-grade fever, tiredness, nocturnal sweats, and splenomegaly. Laboratory results indicate: The patient exhibits leukocytosis, namely an increase in neutrophils and metamyelocytes. The leukocyte alkaline phosphatase (LAP) is lowered, but the serum B levels are up. Additionally, there is hyperuricemia.
The treatment regimen includes chemotherapy with hydroxyurea and amatinib, a tyrosine kinase inhibitor, as well as bone marrow therapy.
Death typically arises as a result of the transition into acute myeloid leukemia (blast crisis).
Chronic myelogenous leukemia (CML) is classified as a myeloproliferative condition, which includes polycythemia vera, essential thrombocythemia, and myelofibrosis.
The Philadelphia chromosome t9;22 is linked to the formation of a hybrid gene ber-abl, which encodes a protein with tyrosine kinase activity.
Most commonly observed in individuals of middle age.
Study of the nature and causes of diseases.
Bone marrow: Hypercellular: elevated levels of myeloid progenitor cells
Peripheral blood smear reveals leukocytosis characterized by a combination of fully developed and undeveloped myeloid cells.
Presenting Symptoms
The patient has symptoms of low-grade fever, tiredness, nocturnal sweats, and splenomegaly. Laboratory results indicate: The patient exhibits leukocytosis, namely an increase in neutrophils and metamyelocytes. The leukocyte alkaline phosphatase (LAP) is lowered, but the serum B levels are up. Additionally, there is hyperuricemia.
The treatment regimen includes chemotherapy with hydroxyurea and amatinib, a tyrosine kinase inhibitor, as well as bone marrow therapy.
Death typically arises as a result of the transition into acute myeloid leukemia (blast crisis).
Chronic myelogenous leukemia (CML) is classified as a myeloproliferative condition, which includes polycythemia vera, essential thrombocythemia, and myelofibrosis.
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Pathology - Acute Myelogenous Leukemia
Down syndrome and exposure to ionizing radiation, benzene, and chemotherapy are considered risk factors.
Study of the nature and causes of diseases.
Linked to chromosomal translocations are M3-t(15;17) and M2-t(8:21).
Most commonly observed in individuals in their middle adulthood.
There exist eight subgroups (MO-M7), each linked to a distinct neoplastic myeloid lineage (myelocyte, monocyte, megakaryocyte, erythrocyte) and a particular stage of development.
Medullary tissue within the cavities of bones: The tissue exhibits a high density of cells with abnormal structure; the myeloblasts are unique to this particular subtype; Auer rods, which are granules in the cytoplasm, are particularly prevalent in M3 (acute promyelocytic leukemia).
Peripheral blood smear reveals pancytopenia accompanied by the presence of myeloblasts.
Symptoms and signs
The individual may experience symptoms such as tiredness, infection, excessive bleeding (including heavy menstrual bleeding and nosebleeds), swelling of the lymph nodes, enlargement of the liver and spleen, and stroke resulting from the blockage of small blood vessels due to a high number of immature white blood cells.
Therapy
Treatment options for the condition include chemotherapy, bone marrow transplant, and the use of all-trans retinoic acid specifically for cases with the (15;17) translocation in M3 subtype.
The prognosis is moderately positive, with a 60% chance of achieving remission. However, only 25% of these individuals manage to remain free of the disease for a period of 5 years.
Down syndrome and exposure to ionizing radiation, benzene, and chemotherapy are considered risk factors.
Study of the nature and causes of diseases.
Linked to chromosomal translocations are M3-t(15;17) and M2-t(8:21).
Most commonly observed in individuals in their middle adulthood.
There exist eight subgroups (MO-M7), each linked to a distinct neoplastic myeloid lineage (myelocyte, monocyte, megakaryocyte, erythrocyte) and a particular stage of development.
Medullary tissue within the cavities of bones: The tissue exhibits a high density of cells with abnormal structure; the myeloblasts are unique to this particular subtype; Auer rods, which are granules in the cytoplasm, are particularly prevalent in M3 (acute promyelocytic leukemia).
Peripheral blood smear reveals pancytopenia accompanied by the presence of myeloblasts.
Symptoms and signs
The individual may experience symptoms such as tiredness, infection, excessive bleeding (including heavy menstrual bleeding and nosebleeds), swelling of the lymph nodes, enlargement of the liver and spleen, and stroke resulting from the blockage of small blood vessels due to a high number of immature white blood cells.
Therapy
Treatment options for the condition include chemotherapy, bone marrow transplant, and the use of all-trans retinoic acid specifically for cases with the (15;17) translocation in M3 subtype.
The prognosis is moderately positive, with a 60% chance of achieving remission. However, only 25% of these individuals manage to remain free of the disease for a period of 5 years.
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Dermatology - Impetigo
The primary causative agents of impetigo are Staphylococcus aureus and beta-hemolytic streptococcus group A. Bullous impetigo occurs due to the localized synthesis of epidermolytic toxin by Staphylococcus aureus bacteria. These microorganisms are not commonly found in the normal human skin microbiota, but instead temporarily inhabit the skin and can lead to surface-level diseases. Primary infections are most prevalent in youngsters, however both primary and secondary infections can occur in individuals of all age groups.
Superficial infections frequently lack noticeable symptoms.
Impetigo manifests as erosions characterized by golden-yellow crusts of 1 to 3 cm in diameter. These lesions exhibit central healing after several weeks of presence. The lesions are spread out, separate, and might merge together; satellite lesions form by self-infection. Secondary infection is frequently observed. Bullous impetigo is characterized by the presence of blisters filled with clear yellow or slightly cloudy fluid, surrounded by a red ring, on skin that appears normal. Rupture leads to the decompression of bullous lesions. Removing the roof of a bulla results in the formation of shallow and wet erosion. Ecthyma is characterized by the presence of ulceration accompanied by a thick crust that adheres firmly to the skin. This condition may cause tenderness and hardening of the affected area.
The diagnosis is made based on clinical observations and validated through laboratory culture testing. The differential diagnosis comprises excoriation, allergic contact dermatitis, herpes simplex, epidermal dermatophytosis, scabies, burns, porphyria cutanea tarda, venous stasis, and ischemic ulcers.
Manage lesions by applying mupirocin and retapamulin ointment, and prevent them from happening again by using benzoyl peroxide wash and/or applying mupirocin and retapamulin ointment to the nostrils.
Examine family members for symptoms of impetigo and urge all those in close proximity to cleanse their hands with ethanol or isopropyl gel. Treatment using antibiotics that act throughout the body.
The primary causative agents of impetigo are Staphylococcus aureus and beta-hemolytic streptococcus group A. Bullous impetigo occurs due to the localized synthesis of epidermolytic toxin by Staphylococcus aureus bacteria. These microorganisms are not commonly found in the normal human skin microbiota, but instead temporarily inhabit the skin and can lead to surface-level diseases. Primary infections are most prevalent in youngsters, however both primary and secondary infections can occur in individuals of all age groups.
Superficial infections frequently lack noticeable symptoms.
Impetigo manifests as erosions characterized by golden-yellow crusts of 1 to 3 cm in diameter. These lesions exhibit central healing after several weeks of presence. The lesions are spread out, separate, and might merge together; satellite lesions form by self-infection. Secondary infection is frequently observed. Bullous impetigo is characterized by the presence of blisters filled with clear yellow or slightly cloudy fluid, surrounded by a red ring, on skin that appears normal. Rupture leads to the decompression of bullous lesions. Removing the roof of a bulla results in the formation of shallow and wet erosion. Ecthyma is characterized by the presence of ulceration accompanied by a thick crust that adheres firmly to the skin. This condition may cause tenderness and hardening of the affected area.
The diagnosis is made based on clinical observations and validated through laboratory culture testing. The differential diagnosis comprises excoriation, allergic contact dermatitis, herpes simplex, epidermal dermatophytosis, scabies, burns, porphyria cutanea tarda, venous stasis, and ischemic ulcers.
Manage lesions by applying mupirocin and retapamulin ointment, and prevent them from happening again by using benzoyl peroxide wash and/or applying mupirocin and retapamulin ointment to the nostrils.
Examine family members for symptoms of impetigo and urge all those in close proximity to cleanse their hands with ethanol or isopropyl gel. Treatment using antibiotics that act throughout the body.
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Dermatology - Primary syphilis
Syphilis is a sexually transmitted infection caused by the spirochete bacterium Treponema pallidum. It is transferred through contact with the skin and mucous membranes, and can affect several organs in the body.
Regional lymphadenopathy typically manifests within a week. The nodes are distinct, solid, elastic, painless, usually seen on one side; they may last for several months.
An ulcer or chancre, ranging in size from 1 mm to 2 cm, appears on the mucocutaneous site where the infection was introduced. It starts as a button-like bump and then progresses to a painless erosion until eventually developing into an ulcer with a raised border and a small amount of clear fluid discharge. The surface might exhibit a crust formation. Extragenital chancres can develop at any location where the infection was introduced; sores on the fingers can cause discomfort. Even in the absence of medical intervention, a chancre will fully heal after a period of 4 to 6 weeks. At this point, the infection may either enter a dormant stage or progress into secondary or tertiary syphilis.
The diagnosis is established through clinical examination and can be further validated using dark-field microscopy or serological testing.
The potential causes for the condition are genital herpes, traumatic ulcer, fixed drug eruption, chancroid, and lymphogranuloma venereum.
Administer a single dose of intramuscular benzathine penicillin G at a dosage of 2.4 million units, or alternatively, take oral doxycycline at a dosage of 100 mg twice daily for a duration of 14 days. This treatment is highly effective and serves to prevent the occurrence of secondary or tertiary syphilis.
Syphilis is a sexually transmitted infection caused by the spirochete bacterium Treponema pallidum. It is transferred through contact with the skin and mucous membranes, and can affect several organs in the body.
Regional lymphadenopathy typically manifests within a week. The nodes are distinct, solid, elastic, painless, usually seen on one side; they may last for several months.
An ulcer or chancre, ranging in size from 1 mm to 2 cm, appears on the mucocutaneous site where the infection was introduced. It starts as a button-like bump and then progresses to a painless erosion until eventually developing into an ulcer with a raised border and a small amount of clear fluid discharge. The surface might exhibit a crust formation. Extragenital chancres can develop at any location where the infection was introduced; sores on the fingers can cause discomfort. Even in the absence of medical intervention, a chancre will fully heal after a period of 4 to 6 weeks. At this point, the infection may either enter a dormant stage or progress into secondary or tertiary syphilis.
The diagnosis is established through clinical examination and can be further validated using dark-field microscopy or serological testing.
The potential causes for the condition are genital herpes, traumatic ulcer, fixed drug eruption, chancroid, and lymphogranuloma venereum.
Administer a single dose of intramuscular benzathine penicillin G at a dosage of 2.4 million units, or alternatively, take oral doxycycline at a dosage of 100 mg twice daily for a duration of 14 days. This treatment is highly effective and serves to prevent the occurrence of secondary or tertiary syphilis.
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Pathology - Iron Deficiency Anemia
Cause or origin of a disease or condition.
Chronic blood loss, typically resulting from gastrointestinal bleeding or menorrhagia; nutritional factors may also contribute.
Insufficiency (infrequent); impaired absorption; gestation
Pathology
Peripheral blood smear reveals erythrocytes that are hypochromic and microcytic.
Common symptoms experienced during physical activity include clinical fatigue, pallor (pale skin), and dyspnea (shortness of breath).
Laboratory results: The patient exhibits a reduction in hematocrit, serum iron, and serum ferritin levels, along with an elevation in total iron-binding capacity (TIBC) and a fall in the Fe/TIBC ratio (less than 15%).
Management includes the administration of iron supplements and the diagnosis of the source of hidden blood loss.
Plummer-Vinson syndrome is a medical condition characterized by the presence of iron deficiency anemia, esophageal webs, and glossitis in patients. It is linked to a higher likelihood of acquiring esophageal cancer.
Sideroblastic anemia occurs due to impaired heme production in the progenitor cells of red blood cells. The condition can arise from either inherent enzymatic abnormalities or acquired deficiencies, such as alcohol or lead exposure, or myelodysplastic syndrome (MDS). Lab experiments indicate elevated amounts of iron and ferritin, but a TIBC within the normal range. There are ringed sideroblasts in the bone marrow. Treatment is focused on addressing the root cause, in addition to supportive with blood transfusions.
Sideroblasts can be seen within the bone marrow. Treatment is focused on addressing the root cause as well as supportive with blood transfusions.
Cause or origin of a disease or condition.
Chronic blood loss, typically resulting from gastrointestinal bleeding or menorrhagia; nutritional factors may also contribute.
Insufficiency (infrequent); impaired absorption; gestation
Pathology
Peripheral blood smear reveals erythrocytes that are hypochromic and microcytic.
Common symptoms experienced during physical activity include clinical fatigue, pallor (pale skin), and dyspnea (shortness of breath).
Laboratory results: The patient exhibits a reduction in hematocrit, serum iron, and serum ferritin levels, along with an elevation in total iron-binding capacity (TIBC) and a fall in the Fe/TIBC ratio (less than 15%).
Management includes the administration of iron supplements and the diagnosis of the source of hidden blood loss.
Plummer-Vinson syndrome is a medical condition characterized by the presence of iron deficiency anemia, esophageal webs, and glossitis in patients. It is linked to a higher likelihood of acquiring esophageal cancer.
Sideroblastic anemia occurs due to impaired heme production in the progenitor cells of red blood cells. The condition can arise from either inherent enzymatic abnormalities or acquired deficiencies, such as alcohol or lead exposure, or myelodysplastic syndrome (MDS). Lab experiments indicate elevated amounts of iron and ferritin, but a TIBC within the normal range. There are ringed sideroblasts in the bone marrow. Treatment is focused on addressing the root cause, in addition to supportive with blood transfusions.
Sideroblasts can be seen within the bone marrow. Treatment is focused on addressing the root cause as well as supportive with blood transfusions.
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Pathology - Megaloblastic Anemia
Etiology
Vitamin B deficiency anemia, also known as pernicious anemia, can be caused by autoimmune gastritis, which leads to the inability to make intrinsic factor. Other causes include malabsorption due to dietary factors such as a vegetarian diet, as well as surgical procedures like gastric resection or resection of the ileum.
Folate deficiency anemia can be caused by malabsorption or a lack of folate in the diet. This condition is commonly observed in individuals who consume excessive amounts of alcohol, as well as pregnant women and those on certain medications such as methotrexate, sulfa medicines, phenytoin, or AZT.
Pathology
Vitamin B12 deficiency leads to demyelination of the posterior and lateral columns of the spinal cord.
Folate deficiency is characterized by a peripheral blood smear showing pancytopenia, hypersegmented neutrophils, and macrocytic erythrocytes.
Symptoms and signs
Vitamin B insufficiency manifests as neurologic abnormalities such as ataxia, decreased proprioception, and diminished vibratory sensation. Other symptoms include glossitis and manifestations of autoimmune gastritis.
Laboratory results indicate a reduction in hematocrit (Hct) levels, a drop in serum vitamin B12 anti-intrinsic factor antibodies, and an abnormal Schilling test, which assesses impaired absorption of oral vitamin B.
Folate deficiency manifests as glossitis and diarrhea. Laboratory results indicate a reduction in hematocrit (Hct) and reduced amounts of folate in red blood cells.
Therapy
Supplement vitamin B12 for the treatment of vitamin B12 insufficiency. Additionally, provide intrinsic factor supplementation if anemia is caused by autoimmune gastritis.
Treatment for folate deficiency: Supplementation with folic acid
Etiology
Vitamin B deficiency anemia, also known as pernicious anemia, can be caused by autoimmune gastritis, which leads to the inability to make intrinsic factor. Other causes include malabsorption due to dietary factors such as a vegetarian diet, as well as surgical procedures like gastric resection or resection of the ileum.
Folate deficiency anemia can be caused by malabsorption or a lack of folate in the diet. This condition is commonly observed in individuals who consume excessive amounts of alcohol, as well as pregnant women and those on certain medications such as methotrexate, sulfa medicines, phenytoin, or AZT.
Pathology
Vitamin B12 deficiency leads to demyelination of the posterior and lateral columns of the spinal cord.
Folate deficiency is characterized by a peripheral blood smear showing pancytopenia, hypersegmented neutrophils, and macrocytic erythrocytes.
Symptoms and signs
Vitamin B insufficiency manifests as neurologic abnormalities such as ataxia, decreased proprioception, and diminished vibratory sensation. Other symptoms include glossitis and manifestations of autoimmune gastritis.
Laboratory results indicate a reduction in hematocrit (Hct) levels, a drop in serum vitamin B12 anti-intrinsic factor antibodies, and an abnormal Schilling test, which assesses impaired absorption of oral vitamin B.
Folate deficiency manifests as glossitis and diarrhea. Laboratory results indicate a reduction in hematocrit (Hct) and reduced amounts of folate in red blood cells.
Therapy
Supplement vitamin B12 for the treatment of vitamin B12 insufficiency. Additionally, provide intrinsic factor supplementation if anemia is caused by autoimmune gastritis.
Treatment for folate deficiency: Supplementation with folic acid
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Pathology - Hereditary Spherocytosis
Etiology
An autosomal dominant disorder characterized by a deficiency in a protein found in the membrane of red blood cells, typically spectrin or ankyrin.
Pathology
Peripheral blood smear: Spherocytes (erythrocytes that are spherical in shape and lack a central pale area) |
Symptoms and signs
The patient has splenomegaly, along with hemolytic anemia that may result in jaundice.
Laboratory results indicate elevated erythrocyte osmotic fragility, increased mean corpuscular hemoglobin concentration (MCHC), presence of reticulocytes, and normal values for other parameters.
Mean corpuscular volume (MCV) and hemoglobin (Hgb) levels are within the normal range.
Therapy
Administration of folate supplements following splenectomy.
Paroxysmal nocturnal hemoglobinuria is a condition involving stem cells that is marked by heightened sensitivity. Red blood cells are susceptible to lysis caused by complement activation. Patients have recurring morning hemoglobinuria.
The individual exhibits elevated levels of hemosiderin in their urine, along with hemolytic anemia and venous thrombosis. The diagnosis has been verified. Confirmed with a positive Ham (acid serum) test and flow cytometry analysis.
Etiology
An autosomal dominant disorder characterized by a deficiency in a protein found in the membrane of red blood cells, typically spectrin or ankyrin.
Pathology
Peripheral blood smear: Spherocytes (erythrocytes that are spherical in shape and lack a central pale area) |
Symptoms and signs
The patient has splenomegaly, along with hemolytic anemia that may result in jaundice.
Laboratory results indicate elevated erythrocyte osmotic fragility, increased mean corpuscular hemoglobin concentration (MCHC), presence of reticulocytes, and normal values for other parameters.
Mean corpuscular volume (MCV) and hemoglobin (Hgb) levels are within the normal range.
Therapy
Administration of folate supplements following splenectomy.
Paroxysmal nocturnal hemoglobinuria is a condition involving stem cells that is marked by heightened sensitivity. Red blood cells are susceptible to lysis caused by complement activation. Patients have recurring morning hemoglobinuria.
The individual exhibits elevated levels of hemosiderin in their urine, along with hemolytic anemia and venous thrombosis. The diagnosis has been verified. Confirmed with a positive Ham (acid serum) test and flow cytometry analysis.
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Pathology - Thalassemias
Etiology
Thalassemias are caused by the deletion of one or more of the four genes that code for the alpha globin chain of hemoglobin in the body. This condition is known as alpha-thalassemias.
ß-Thalassemias are caused by a point mutation in the B-globin gene, which leads to a decrease or complete absence of the production of the B-globin chain of hemoglobin (Hgb).
Thalassemias are more prevalent in individuals with Mediterranean heritage.
Study of the nature and causes of diseases.
Pathology
Alpha-Thalassemias: Examination of the blood sample reveals red blood cells that are abnormally small and pale, with a characteristic appearance of target cells.
B-Thalassemias: The examination of the blood sample shows red blood cells that are pale and small in size, as well as cells with a target-like appearance and irregular shape and size variation.
Symptoms and signs
alpha-Thalassemias: There are four different clinical variations. (1) The presence of 3-4 normal genes in alpha-thalassemia trait results in an asymptomatic condition. (2) The presence of two normal genes in alpha-thalassemia trait results in mild anemia with a decrease in mean corpuscular volume (MCV).
(3) Hemoglobin H illness is characterized by severe hemolytic anemia with low mean corpuscular volume (MCV) (< 70), the presence of Hgb H (aggregate of excess ß-chains), and splenomegaly. (4) Hydrops fetalis occurs in stillborn fetuses with no normal genes present.
There are two clinical forms of ß-Thalassemias. (1) B-thalassemia minor refers to the condition of having one abnormal gene for beta-thalassemia, resulting in mild anemia and a decrease in mean corpuscular volume (MCV). (2) B-thalassemia major (homozygosity) is a condition characterized by significant destruction of red blood cells, resulting in low mean corpuscular volume (MCV). It typically manifests in infancy and is associated with elevated levels of hemoglobin E, enlargement of the spleen, and abnormalities in the bones due to expansion of the bone marrow. The patient has developed hemosiderosis as a result of receiving chronic transfusions, which has subsequently led to heart failure.
Therapy
a-Thalassemias: Alpha-thalassemia trait does not require treatment, although hemoglobin H illness may require transfusions.
ß Thalassemias: ß-thalassemia minor does not require therapy, while transfusion and/or bone marrow may be necessary for other types of ß-thalassemia.
Etiology
Thalassemias are caused by the deletion of one or more of the four genes that code for the alpha globin chain of hemoglobin in the body. This condition is known as alpha-thalassemias.
ß-Thalassemias are caused by a point mutation in the B-globin gene, which leads to a decrease or complete absence of the production of the B-globin chain of hemoglobin (Hgb).
Thalassemias are more prevalent in individuals with Mediterranean heritage.
Study of the nature and causes of diseases.
Pathology
Alpha-Thalassemias: Examination of the blood sample reveals red blood cells that are abnormally small and pale, with a characteristic appearance of target cells.
B-Thalassemias: The examination of the blood sample shows red blood cells that are pale and small in size, as well as cells with a target-like appearance and irregular shape and size variation.
Symptoms and signs
alpha-Thalassemias: There are four different clinical variations. (1) The presence of 3-4 normal genes in alpha-thalassemia trait results in an asymptomatic condition. (2) The presence of two normal genes in alpha-thalassemia trait results in mild anemia with a decrease in mean corpuscular volume (MCV).
(3) Hemoglobin H illness is characterized by severe hemolytic anemia with low mean corpuscular volume (MCV) (< 70), the presence of Hgb H (aggregate of excess ß-chains), and splenomegaly. (4) Hydrops fetalis occurs in stillborn fetuses with no normal genes present.
There are two clinical forms of ß-Thalassemias. (1) B-thalassemia minor refers to the condition of having one abnormal gene for beta-thalassemia, resulting in mild anemia and a decrease in mean corpuscular volume (MCV). (2) B-thalassemia major (homozygosity) is a condition characterized by significant destruction of red blood cells, resulting in low mean corpuscular volume (MCV). It typically manifests in infancy and is associated with elevated levels of hemoglobin E, enlargement of the spleen, and abnormalities in the bones due to expansion of the bone marrow. The patient has developed hemosiderosis as a result of receiving chronic transfusions, which has subsequently led to heart failure.
Therapy
a-Thalassemias: Alpha-thalassemia trait does not require treatment, although hemoglobin H illness may require transfusions.
ß Thalassemias: ß-thalassemia minor does not require therapy, while transfusion and/or bone marrow may be necessary for other types of ß-thalassemia.
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Pathology - Glucose-6-Phosphate Dehydrogenase Deficiency Anemia
Causes and Distribution of Diseases
This is a genetic condition that is inherited in an X-linked recessive manner. It leads to a shortage of an enzyme called glucose-6-phosphate dehydrogenase (G6PD).Impacts a demographic of 10%-15% of individuals of African descent
Pathology
Peripheral blood smear reveals the presence of bite cells and Heinz bodies, which are clusters of oxidized hemoglobin within the red blood cells.
Pathophysiology refers to the study of the functional changes that occur in the body as a result of a disease or injury. G6PD is an enzyme that participates in the synthesis of NADPH in the hexose monophosphate shunt pathway. NADPH is essential for the production of reduced glutathione, a molecule that plays a crucial role in safeguarding hemoglobin against oxidative harm.
In the absence of reduced glutathione, hemoglobin undergoes oxidation and leads to the formation of Heinz bodies within the red blood cells. Heinz bodies induce harm to the red blood cell (RBC) membrane, resulting in the elimination of these impaired RBCs in the spleen, ultimately causing anemia.
Clinical Presentations
Episodic hemolytic anemia with hemoglobinuria can occur when oxidant medications such as primaquine, quinidine, quinine, sulfonamides, and anti-TB treatments are ingested. It can also be caused by the consumption of certain foods, namely fava beans, in the presence of infection.
Treatment: Refrain from administering medications with oxidizing properties.
G6PD deficiency is associated with an elevated level of resistance to malaria.
Causes and Distribution of Diseases
This is a genetic condition that is inherited in an X-linked recessive manner. It leads to a shortage of an enzyme called glucose-6-phosphate dehydrogenase (G6PD).Impacts a demographic of 10%-15% of individuals of African descent
Pathology
Peripheral blood smear reveals the presence of bite cells and Heinz bodies, which are clusters of oxidized hemoglobin within the red blood cells.
Pathophysiology refers to the study of the functional changes that occur in the body as a result of a disease or injury. G6PD is an enzyme that participates in the synthesis of NADPH in the hexose monophosphate shunt pathway. NADPH is essential for the production of reduced glutathione, a molecule that plays a crucial role in safeguarding hemoglobin against oxidative harm.
In the absence of reduced glutathione, hemoglobin undergoes oxidation and leads to the formation of Heinz bodies within the red blood cells. Heinz bodies induce harm to the red blood cell (RBC) membrane, resulting in the elimination of these impaired RBCs in the spleen, ultimately causing anemia.
Clinical Presentations
Episodic hemolytic anemia with hemoglobinuria can occur when oxidant medications such as primaquine, quinidine, quinine, sulfonamides, and anti-TB treatments are ingested. It can also be caused by the consumption of certain foods, namely fava beans, in the presence of infection.
Treatment: Refrain from administering medications with oxidizing properties.
G6PD deficiency is associated with an elevated level of resistance to malaria.
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Pathology - Paroxysmal Nocturnal Hemoglobinuria (PNH)
Resulting from a genetic alteration on the X chromosome. This leads to the incapacity of hematopoietic stem cells to generate a GPI surface protein, which plays a crucial role in interacting with complement molecules. This results in flawed interactions with complement, leading to the destruction of the erythrocyte by complement.
Pathology
Peripheral blood smear reveals indications of hemolytic anemia.
Patients exhibit intermittent reddish-brown urine in the mornings as a result of elevated levels of urine hemosiderin. Indications of hemolytic anemia and blood clotting in veins.
Symptoms and signs
Additionally, certain people may exhibit infections and bleeding as a result of a pancytopenic condition.
Laboratory results: The results indicate a positive Ham test, positive urine hemosiderin, negative Coombs test, and flow cytometry showing the absence of CD55 or CD59, which are both GPI surface proteins.
Therapy
Supportive therapy include transfusions and iron supplementation as necessary; corticosteroids for mild cases, while severe cases may necessitate a bone marrow transplant or immunosuppression using eculizumab.
Resulting from a genetic alteration on the X chromosome. This leads to the incapacity of hematopoietic stem cells to generate a GPI surface protein, which plays a crucial role in interacting with complement molecules. This results in flawed interactions with complement, leading to the destruction of the erythrocyte by complement.
Pathology
Peripheral blood smear reveals indications of hemolytic anemia.
Patients exhibit intermittent reddish-brown urine in the mornings as a result of elevated levels of urine hemosiderin. Indications of hemolytic anemia and blood clotting in veins.
Symptoms and signs
Additionally, certain people may exhibit infections and bleeding as a result of a pancytopenic condition.
Laboratory results: The results indicate a positive Ham test, positive urine hemosiderin, negative Coombs test, and flow cytometry showing the absence of CD55 or CD59, which are both GPI surface proteins.
Therapy
Supportive therapy include transfusions and iron supplementation as necessary; corticosteroids for mild cases, while severe cases may necessitate a bone marrow transplant or immunosuppression using eculizumab.
