9 results
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
- Differential Diagnosis ... hemorrhagic skin lesions ... SLE) - Viral infections ... • HCV, HBV Not ... #hematology #rheumatology
HSV Herpetic Whitlow Infection of the Finger
20 F presents with painful finger, treated w/ oral cephalexin
HSV Herpetic Whitlow ... Diagnosis? ... Herpetic whitlow hsv ... infection of finger ... Herpetic #Whitlow #HSV
Aplastic Anemia - Overview

Who?
• M = F
• 3 peaks:	1) Childhood	2) 15-25 years	3) >60 years

What?
• Aplastic anemia
: - Genetic lesions ... - CMV - HCV ... - HIV • Immune ... immunodeficiency virus (HIV ... #diagnosis #management
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
- Due to Viral infection ... nose, ears, or fingers ... Mycoplasma, EBV, HIV ... 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 • ... #rheumatology #
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
- Differential Diagnosis ... to exclude are infections ... HTN • Check: HBV ... episcleritis as well as inner ... #Rheumatology
Lichen Planus- ...On examination, numerous purple papules were noted on the anterior surface of the forearms
Several lesions ... showed a fine reticulate ... confirming the diagnosis ... association with HCV ... association between HCV
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 ... Indiana University Infectious ... clinical #photo #skinrash
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
Tenderness → Consider infectious ... RP-ILD), dermato-rheumatologic ... Anti-Mi2 (skin lesions ... weakness + atrophy- Hip ... flexors, quadriceps, finger