17 results
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... symptoms - Headache, fever ... , abdominal pain ... #rheumatology #comparison ... #table
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Red Flags: • Fever ... lesions • Severe pain ... Sjogren's, GPA, EGPA, Microscopic ... cryoglobulins • Skin
Sweet Syndrome

Acute febrile neutrophilic dermatosis (Sweets Syndrome) is a skin condition characterized by fever and inflamed
with systemic disease ... - Rash: multiple ... Causes: - Idiopathic ... : - Biopsy - Microscopic ... neutrophils in the blood
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... Maculopapular rash ... burning sensation or pain ... Polyarteritis nodosa • Microscopic ... vasculitis (inflamed blood
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
centrifugum • A chronic skin ... early localized disease ... PrathitKulkarni #Erythemas #comparison ... #table #differential ... #diagnosis #dermatology
Chronic Abdominal Pain Causes - Differential Diagnosis Framework

Many patients with chronic abdominal pain have had prior
Diagnosis Framework ... did not yield a diagnosis ... Red Flags: • Fever ... the patient • Blood ... • Skin changes
Borrelia recurrentis on Peripheral Blood Smear
23M Somali refugee recently arrived w/severe abd pain, confusion and fever
arrived w/severe abd pain ... Mild LFT ↑ This ... The table below ... Infectious Diseases ... recurrentis #BloodSmear #microscopy
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
(blue-purple) rash ... Dermatomyositis • Fever ... onset [33-74%] • Blood ... severity of the disease ... #dermatology #diagnosis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
PR3-ANCA): • Microscopic ... tract, and often causes ... mucositis - Rash ... Vasculitis: • Fevers ... Large Vessel: Blood
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
- Differential Diagnosis ... pulses, bruits, or blood ... , mucositis • Rash ... (PR3-ANCA)): Microscopic ... tract, and often causes