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Symptoms and Signs – Differential Diagnosis of Depression
• Bipolar patients will frequently present with depression, but routine treatment with antidepressant medications may be detrimental in this group.
• Elderly patients: frequently coexists with dementia
• Hypothyroidism
• Major organ system disease (e.g., cardiovascular, liver, renal, neuronal diseases) with depressive symptoms
• Neurosyphilis
• Bipolar patients will frequently present with depression, but routine treatment with antidepressant medications may be detrimental in this group.
• Elderly patients: frequently coexists with dementia
• Hypothyroidism
• Major organ system disease (e.g., cardiovascular, liver, renal, neuronal diseases) with depressive symptoms
• Neurosyphilis
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Symptoms and Signs – Differential Diagnosis of de Quervain’s Tenosynovitis
• Carpal tunnel syndrome
• Compression neuropathy (e.g., superficial branch of the radial nerve “bracelet syndrome”)
• Gout
• Infection (e.g., TB, bacterial)
• Infiltrative tenosynovitis
• Ostearthritis
• Carpal tunnel syndrome
• Compression neuropathy (e.g., superficial branch of the radial nerve “bracelet syndrome”)
• Gout
• Infection (e.g., TB, bacterial)
• Infiltrative tenosynovitis
• Ostearthritis
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Symptoms and Signs – Differential Diagnosis of Atopic Dermatitis
• Candidiasis
• Contact dermatitis
• Dermatitis herpetiformis
• Lichen simplex chronicus
• Other: Wiskott-Aldrich syndrome, phenylketonuria (PKU), mycosis fungoides, ichthyosis, HIV dermatitis, non-nummular eczema, histiocytosis X
• Photosensitivity
• Psoriasis
• Scabies
• Seborrheic dermatitis
• Candidiasis
• Contact dermatitis
• Dermatitis herpetiformis
• Lichen simplex chronicus
• Other: Wiskott-Aldrich syndrome, phenylketonuria (PKU), mycosis fungoides, ichthyosis, HIV dermatitis, non-nummular eczema, histiocytosis X
• Photosensitivity
• Psoriasis
• Scabies
• Seborrheic dermatitis
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Symptoms and Signs – Differential Diagnosis of Contact Dermatitis
• Seborrheic dermatitis
• Scabies
• Psoriasis
• Nummular eczema
• Lichen simplex chronicus
• Impetigo
• Atopic dermatitis
• Seborrheic dermatitis
• Scabies
• Psoriasis
• Nummular eczema
• Lichen simplex chronicus
• Impetigo
• Atopic dermatitis
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Symptoms and Signs – Differential Diagnosis of Dermatitis Herpetiformis
• Linear IgA bullous dermatosis (not associated with glutensensitive enteropathy)
• Herpes zoster infection
• Herpes simplex infection
• Erythema multiforme
• Bullous pemphigoid
• Linear IgA bullous dermatosis (not associated with glutensensitive enteropathy)
• Herpes zoster infection
• Herpes simplex infection
• Erythema multiforme
• Bullous pemphigoid
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Symptoms and Signs -Differential Diagnosis of Dermatofibroma
• Angioma
• Basal cell carcinoma
• Foreign body reaction
• Insect bite
• Keloid
• Melanoma
• Nevus
• Prurigo nodularis
• Scar
• Wart
• Angioma
• Basal cell carcinoma
• Foreign body reaction
• Insect bite
• Keloid
• Melanoma
• Nevus
• Prurigo nodularis
• Scar
• Wart
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Sympotms and Signs – Differential Diagnosis of Dermatographism
• Aquagenic urticaria
• Cholinergic urticaria
• Cold urticaria
• Exercise-induced urticaria
• Heat urticaria
• Lupus
• Polymorphous light eruption
• Solar urticaria
• Aquagenic urticaria
• Cholinergic urticaria
• Cold urticaria
• Exercise-induced urticaria
• Heat urticaria
• Lupus
• Polymorphous light eruption
• Solar urticaria
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Symptoms and Signs – Differential Diagnosis of Dermatomyositis
• Amyotrophic lateral sclerosis
• Atopic dermatitis
• Contact dermatitis
• Diabetic amyotrophy
• Drug-induced myopathies
• Eaton-Lambert syndrome
• Guillain-Barré syndrome
• Hyperthyroidism or hypothyroidism
• Inclusion body myositis
• Lichen planus
• Muscular dystrophies
• Myasthenia gravis
• Polymyositis
• Psoriasis
• Seborrheic dermatitis
• Systemic lupus erythematosus (SLE)
• Amyotrophic lateral sclerosis
• Atopic dermatitis
• Contact dermatitis
• Diabetic amyotrophy
• Drug-induced myopathies
• Eaton-Lambert syndrome
• Guillain-Barré syndrome
• Hyperthyroidism or hypothyroidism
• Inclusion body myositis
• Lichen planus
• Muscular dystrophies
• Myasthenia gravis
• Polymyositis
• Psoriasis
• Seborrheic dermatitis
• Systemic lupus erythematosus (SLE)
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Symptoms and Sign – Differential Diagnosis of Crohn’s Disease
• Carcinoid tumors
• Celiac sprue
• Collagenous colitis
• Colon carcinoma
• Diverticulitis
• Fungal infections (Histoplasma, Actinomyces)
• Gay bowel syndrome (in homosexual patient)
• Infectious diseases (TB, Yersinia, Salmonella, Shigella, Campylobacter)
• Irradiation enteritis
• Ischemic colitis in elderly patients
• Lymphoma
• Mesenteric adenitis
• Parasitic infections (amebic infection)
• Pseudomembranous colitis
• Ulcerative colitis
• Carcinoid tumors
• Celiac sprue
• Collagenous colitis
• Colon carcinoma
• Diverticulitis
• Fungal infections (Histoplasma, Actinomyces)
• Gay bowel syndrome (in homosexual patient)
• Infectious diseases (TB, Yersinia, Salmonella, Shigella, Campylobacter)
• Irradiation enteritis
• Ischemic colitis in elderly patients
• Lymphoma
• Mesenteric adenitis
• Parasitic infections (amebic infection)
• Pseudomembranous colitis
• Ulcerative colitis
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Symptoms and Signs – Differential Diagnosis of Cryoglobulinemia
• Antiphospholipid antibody syndrome
• Polyarteritis nodosa
• Sarcoidosis
• Septic vasculitis
• Serum sickness
• Waldenström’s hyperglobulinemia
• Antiphospholipid antibody syndrome
• Polyarteritis nodosa
• Sarcoidosis
• Septic vasculitis
• Serum sickness
• Waldenström’s hyperglobulinemia