2885 results
ILD of Known Cause - Differential Diagnosis
Exposure:
 • Occupational: Asbestosis, Silicosis, Hypersensitivity, Pneumonitis
 • Treatment Related:
ILD of Known Cause ... with Vasculitis: GPA ... , EGPA • Granulomatous ... BrighamChiefs #ILD #Causes
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
pathophysiologic causes ... ANCA (C-ANCA): GPA ... >>> MPA > eGPA ... MPO-ANCA (P-ANCA): eGPA ... , MPA >>> GPA Stanford
Eosinophils (Eos) and hypereosinophilia (HE)
Caused by eosinophilopoietic cytokines
Common causes:
 - Drug reaction
 - Helminth infection
 -
hypereosinophilia (HE) Caused ... cytokines Common causes ... disease Rare causes ... inflammatory diseases (EGPA ... Differential #Diagnosis #Causes
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
polyangiitis), EGPA ... DAH), asthma in EGPA ... • Cardiac (in EGPA ... Goodpasture's cause ... hematuria, RBC casts
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
Identification of causes ... vasculitis (5%): PAN > GPA ... , EGPA • Solid
Causes of Pericardial Effusion - Differential Diagnosis
Infectious:
 • Viral: Enterovirus, Herpesvirus, Adenovirus, Parvovirus
 • Bacterial: Mycobacterium
Causes of Pericardial ... • Vasculitis: EGPA ... Differential #Diagnosis #Causes
Differential Diagnosis of Pulmonary Eosinophilia
Infection:
 • Helminthic: Loffler syndrome (Ascaris, hookworm, Strongyloides), Tropical pulmonary eosinophilia (lymphatic
polyangiitis (EGPA ... Differential #Diagnosis #causes
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
disorders, or other causes ... Quantity: • Primary Causes ... • Secondary Causes ... vasculitis - GPA ... - EGPA - MPA
Hemoptysis - Differential Diagnosis Framework
Massive Hemoptysis: >150-300 mL in 24h
Airway disease: 
 • Bronchitis, Bronchiectasis, Malignancy
ANCA-Assoc vasculitis (GPA ... > EGPA, MPA), Cryoglobulinemia ... Diagnosis #pulmonary #causes
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... RA, Sjogren's, GPA ... , EGPA, Microscopic ... Diagnosis #Algorithm #Causes