8 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
CNS PCR 50% sensitive ... , may also see skin ... lesions, LAD, and ... #Brain #differential ... #diagnosis #causes
Henoch Schonlein Leg Rash - Palpable Purpura
Purpura: Low Platelets or Vasculitis?
45 years old, seen in our
Tip: To differentiate ... touch the lesions ... purpura (IgA), ... #clinical #photo ... #dermatology #HSP
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Papulosquamous Skin ... Rash - Differential ... Herald's atch • Tinea ... • Secondary Syphilis ... #causes
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
HIV / AIDS - Differential ... Simplex Virus (HSV ... Demyelinating disease caused ... Syphilis • Aspergillosis ... #Infections #differential
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
, mucositis • Rash ... present) Henoch Schonlein ... causes arthritis ... , IgA (cmpkx deposits ... chorioretinitis, CNS
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
CNS Infections - ... : HSV 1): • Herpes ... Maculopapular rash ... • In tertiary syphilis ... • Uveitis • Rash
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
lesions • Mononeuritis ... present • Henoch Schonlein ... Purpura (IgA vasculitis ... causes arthritis ... mucositis - Rash
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
) • Anti-Mi2 (skin ... lesions) • Anti-TIF1 ... Symptoms: • Gottron rash ... • Mechanic's hands ... statins - probably caused