​Differential Diagnosis of Ankle Sprain

Differential Diagnosis of Ankle Sprain • Fracture of the ankle or foot, particularly involving the distal fibular growth plate in the immature patient • Avulsion fracture of the fifth metatarsal base



​Differential Diagnosis of Anorexia Nervosa

Differential Diagnosis of Anorexia Nervosa • Schizophrenia • Occult carcinoma, lymphoma • Infectious disorders: AIDS, TB • GI disorders: celiac disease, Crohn’s disease, intestinal parasitosis • Endocrine disorders: Addison’s disease, diabetes mellitus (D


​Differential Diagnosis of Anovulation

Differential Diagnosis of Anovulation • Weight loss/malnutrition • Thyroid dysfunction (hypothyroidism, hyperthyroidism) • Systemic diseases (e.g., liver disease) • Strenuous exercise • Polycystic ovary syndrome • Pituitary disorders (infarction, infectio


​Differential Diagnosis of Anthrax

Differential Diagnosis of Anthrax • The differential diagnosis of gastrointestinal anthrax includes viral gastroenteritis, shigellosis, and yersiniosis. • Inhalation anthrax must be distinguished from influenza-like illness (ILI) and tularemia. Most cases


​Differential Diagnosis of Antinuclear Antibody (ANA) Positive

Differential Diagnosis of Antinuclear Antibody (ANA) Positive • Systemic lupus erythematosus (SLE) (more significant if titer >1 : 160) • Sjögren’s syndrome • Scleroderma • Rheumatoid arthritis (RA) • Necrotizing vasculitis • Mixed connective tissue disea



​Symptoms and Signs - Differential Diagnosis of Anxiety

​Symptoms and Signs - Differential Diagnosis of Anxiety • Wide range of psychiatric and medical conditions; however, for a diagnosis of generalized anxiety disorder (GAD) to be made, a person must experience anxiety with coexisting physical symptoms the m


Symptoms and Signs - Differential Diagnosis of Aortic Dissection

Symptoms and Signs - Differential Diagnosis of Aortic Dissection • Rib fracture • Pulmonary embolism • Pancreatitis • Nondissecting aortic aneurysm • Esophagitis • Esophageal spasm • Cholelithiasis, cholecystitis • Aortic insufficiency • Acute myocardial