4 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
CNS Ring-Enhancing ... + toxo IgG • CNS ... , may also see skin ... differential #diagnosis #causes ... #radiology #neurology
Rickettsialpox Eschar

40 homeless male from NY admitted with fever, chills, headache, myalgias. Diagnosis?
Rickettsialpox R akari classic
Can have 20-40 lesions ... Pts can recover ... rickettsia) Dx: serology ... clinical #photo #skinrash ... #dermatology
Cutaneous Mucormycosis Eschar
30 M HIV cd4 10 VL 30k traumatic injury of arm few months ago
immunosuppressed pts ... cutaneous mucor cases ... steroid use Dx: skin ... from center of lesion ... #dermatology #skin
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
lesions • Mononeuritis ... , neurologic, and ... cognitive impairment, neurologic ... tract, and often causes ... Differential #Diagnosis #Rheumatology