9 results
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... Diagnosis Framework ... hemorrhagic skin lesions ... • HCV, HBV Not ... #Diagnosis #hematology
HSV Herpetic Whitlow Infection of the Finger
20 F presents with painful finger, treated w/ oral cephalexin
HSV Herpetic Whitlow ... Diagnosis? ... Herpetic whitlow hsv ... Herpetic #Whitlow #HSV ... #clinical #photo
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
nose, ears, or fingers ... Mycoplasma, EBV, HIV ... younger pts) Differential ... hemolytic #anemia #hematology ... #diagnosis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
ischemic skin lesions ... to exclude are infections ... Cryoglobulins • HIV ... • HBV HCV • ... #diagnosis #rheumatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Diagnosis Framework ... Diagnosis: • Systemic ... HTN • Check: HBV ... #Diagnosis #Rheumatology
Lichen Planus- ...On examination, numerous purple papules were noted on the anterior surface of the forearms
showed a fine reticulate ... confirming the diagnosis ... association with HCV ... association between HCV ... NEJM #clinical #photo
Rickettsialpox Eschar

40 homeless male from NY admitted with fever, chills, headache, myalgias. Diagnosis?
Rickettsialpox R akari classic
Diagnosis? ... Can have 20-40 lesions ... , hsv, Queensland ... rakari #clinical #photo ... #skinrash #dermatology
Oral histoplasmosis in a transplant patient
50 F Midwest hx liver transplant on prednisone MMF fever, sweats,
Diagnosis? ... Center of lesion ... may not Other differentials ... : CMV & HSV. ... mouth #clinical #photo
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
Autoimmune Myositis - Differential ... Tenderness → Consider infectious ... Anti-Mi2 (skin lesions ... flexors, quadriceps, finger ... #differential #