15 results
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
pathophysiologic causes ... ANCA (C-ANCA): GPA ... Glomerulonephritis #Vasculitis #differential ... #diagnosis #algorithm ... #rheumatology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Rash - Differential ... Diagnosis Algorithm ... : - Autoimmune ... RA, Sjogren's, GPA
Causes of Thrombocytopenia - Differential Diagnosis Framework
Decreased Production:
 - Drugs (chemo, yang, sulfa, acetaminophen, NSAIDs, quinine,
Causes of Thrombocytopenia ... - Differential ... Viral: HIV, HCV, EBV ... : ITP, HITT - Autoimmune ... #hematology
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
fires, heating pads ... malignancies, autoimmune ... infection and autoimmune ... comparison #table #differential ... #diagnosis #dermatology
Hemoptysis - Differential Diagnosis Framework
Massive Hemoptysis: >150-300 mL in 24h
Airway disease: 
 • Bronchitis, Bronchiectasis, Malignancy
Diagnosis Framework ... Kaposi's sarcoma • Rheumatologic ... / Autoimmune: ANCA-Assoc ... vasculitis (GPA ... #causes
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... Maculopapular rash ... reticularis Differential ... #dermatology #rash ... #diagnosis #rheumatology
Causes of Neutropenia - Differential Diagnosis
Neonate:
 - Infection - by far the most common cause
 -
- Differential ... Diagnosis Neonate ... #Neutropenia #differential ... #diagnosis #causes ... #hematology
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
OnePager Summary Autoimmune ... vasculitis (AAV): GPA ... coagulopathy) • CBC w differential ... Goodpasture's cause ... Renal #Syndromes #differential
Acute Liver Injury - Differential Diagnosis Algorithm

Vascular Causes of Acute Liver Injury: 
 • Hepatic vein:
Liver Injury - Differential ... Diagnosis Algorithm ... Vascular Causes ... HBV, HCV, HEV, EBV ... : Autoimmune hepatitis
Elevated Globulin - Protein Gap (Total Protein - Albumin > 4)

Work-up of an Elevated Globulin Gap:
•
Causes of Monoclonal ... acute HIV, HBV, EBV ... Cirrhosis, ETOH, autoimmune ... #ProteinGap #differential ... #diagnosis #hematology