2427 results
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
60-70% - Anti-SSA ... 5-10% - Anti- ... 5-15% - Anti-Ku ... (aPL) 30-45% Differential ... symptoms #mimickers #differential
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
Elevated CK, +Anti-Jo ... , +Anti-Mi2 Dermatomyositis ... Elevated CK, +Anti-Jo ... , +Anti-Mi2 Polymyalgia ... Myopathies #myopathy #differential
Inflammatory Myopathies
Dermatomyositis
 • Onset: Subacute
 • Pattern: Proximal
 • CK: Up to 50X ULN
 • Autoantibodies:
Autoantibodies: Anti-MDA5 ... , anti-Mi-2, anti-TIF ... -1, anti-NXP-2 ... , anti-HMGCR • ... Inflammatory #Myopathies #differential
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
symptomatology Differential ... sclerosis • Anti-Glomerular ... ab, anti-GBM ab ... , ANA, C3, C4, anti-CCP ... Renal #Syndrome #differential
Male Sexual and Erectile Dysfunction - Differential Diagnosis Algorithm
Erectile Dysfunction
 - Psychological
    •
Dysfunction - Differential ... • Anti-depressants ... Narcotics • Anti-psychotics ... • Anti-androgens ... Dysfunction #Male #Differential
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
Henoch-SchonIein Purpura Anti-GBM ... Limited to Kidney: Anti-GBM ... pulmonary involvement: Anti-GBM ... Glomerulonephritis #Vasculitis #differential
Causes of Secondary Amenorrhea - Differential Diagnosis
 • Pregnancy
 • Endocrinopathies: PCOS, Hypothyroidism
 • HPA Dysfunction:
Secondary Amenorrhea - Differential ... Dopamine antagonists, Anti-psychotics ... Secondary #Amenorrhea #Differential
Rapidly Progressive Glomerulonephritis (RPGN) 
 - Loss of kidney function over a short period of tirne
post-infectious GN Anti-Glomerular ... IF • Majority anti-neutrophil ... + • c-ANCA: anti-proteinase ... staining • p-ANCA: anti-myeloperioxidase ... Classification #Differential
Glomerulonephritis - Differential Diagnosis Framework
ANCA:
 • C-ANCA: GPA (Wegener's)
 • P-ANCA: Microscopic Polyangiitis, Eosinophilic GPA (Churg
Glomerulonephritis - Differential ... Churg Strauss) Anti-GBM ... Glomerulonephritis #differential
Causes of Fatigue - Differential Diagnosis Algorithm
Endocrine
 • Hypo/Hyperthyroidism
 • Diabetes
 • Pituitary Insufficiency
 • Adrenal
Causes of Fatigue - Differential ... Hypnotics • Anti-hypertensives ... • Anti-Depressants ... Chronic #Fatigue #Differential