10 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
, may also see skin ... Neuro Behcets Vascular ... #Brain #differential ... #diagnosis #causes ... #radiology #neurology
Algorithm for evaluating multiple ring-enhancing lesions in immunocompetent (HIV negative)

#ringenhancing #lesions #cns #brain #diagnosis #differential #algorithm
Algorithm for evaluating ... ring-enhancing lesions ... #cns #brain #diagnosis ... #causes #radiology ... #neurology
Vascular Skin Lesions - Differential Diagnosis Algorithm
 - Petechiae < 0.2 cm diameter
 - Purpura 0.2
Vascular Skin Lesions ... Differential Diagnosis Algorithm ... discolorations of skin ... Vasculitis #SkinRash #dermatology ... #causes
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
purple, hemorrhagic skin ... lesions that result ... deficiencies - PNH ... Differential #Diagnosis #hematology ... #nonpalpable #dermatology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... reddish-purple lesions ... Disruptions in vascular ... cryoglobulins • Skin ... #Causes #dermatology
Venous Thrombosis vs Arterial Thrombosis - Differential Diagnosis Framework

VENOUS THROMBOSIS

 • Acquired Risk Factors:
	- >48 hours
Testosterone - Coumadin skin ... atherosclerotic lesions ... coagulation and other causes ... pathophysiology #hematology ... differential #diagnosis #vascular
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
centrifugum • A chronic skin ... acquired dermal macular ... to have a "wood-grain ... classic targetoid lesions ... differential #diagnosis #dermatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
lesions • Mononeuritis ... pulse deficits vascular ... , neurologic, and ... cognitive impairment, neurologic ... tract, and often causes
Cutaneous Mucormycosis Eschar
30 M HIV cd4 10 VL 30k traumatic injury of arm few months ago
immunosuppressed pts ... from center of lesion ... Mucormycosis #Eschar #dermatology ... #skin #clinical ... #photo
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 ... rakari #clinical #photo ... #skinrash #dermatology