20 results
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
via: • Necrotizing ... Skin Findings: • Petechiae ... cell arteritis Infections ... diseases • Fungal infections ... inflammation) • Necrotising
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
- Trauma - Infection ... Disseminated gonococcal infection ... Henoch Schonlein Purpura ... Non-Palpable Rash: - Purpura ... RA, Sjogren's, GPA
Cavitary Lung Disease - Differential Diagnosis and Workup Algorithm
Acute / Subacute:
 • Acute Infections: Lung abscess,
: Lung abscess, ... Necrotizing Pneumonia ... Emboli, Fungal Infection ... ): • Chronic Infections ... Autoimmunity: RA, GPA
Necrotizing Fasciitis: Note the extensive edema, erythema, bullae formation, and necrosis in this patient's thigh. At
Necrotizing Fasciitis ... at the site of infection ... Goldberg, M.D. - UCSD ... Images #Clinical #Photo ... Fasciitis #Bullae #UCSDH
Necrotizing Fasciitis: African-American patient with diabetes that predisposed him to rapidly 
progressive infection. Lower extremity is
Necrotizing Fasciitis ... progressive infection ... As the infection ... Images #Clinical #Photo ... #Fasciitis #UCSDH
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
correlations • Purpura ... vasculitis (10%) • Necrotizing ... vasculitis (5%): PAN > GPA ... , EGPA • Solid ... vasculitis (3%) • Infections
Hemoptysis - Differential Diagnosis Framework
Massive Hemoptysis: >150-300 mL in 24h
Airway disease: 
 • Bronchitis, Bronchiectasis, Malignancy
Parenchyma: • Infection ... Bacterial (TB, Necrotizing ... PNA, Abscess), ... ANCA-Assoc vasculitis (GPA ... > EGPA, MPA), Cryoglobulinemia
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
related vasculitis, infections ... Small Vessel: Petechiae ... , Palpable purpura ... polyangiitis - EGPA ... - GPA Cutaneous
Peritonsilar Abscess: Abscess of left tonsilar area. Note swelling and deviation of uvula away from
side of
: Abscess of left ... from side of infection ... Goldberg, M.D. - UCSD ... Images #Clinical #Photo ... Palate #Deviation #UCSDH
Perirectal Abscess: Infection originates in the rectum, extending to the opening seen on the buttocks.

Charlie Goldberg,
Perirectal Abscess ... : Infection originates ... Goldberg, M.D. - UCSD ... Images #Clinical #Photo ... #Perirectal #Abscess