6 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
CNS Ring-Enhancing ... Immunocompetent Multiple Ring-Enhancing ... an incomplete ring ... #Brain #differential ... #diagnosis #causes
Neurological Manifestations of Tuberculosis
Spinal Arachnoiditis & Polyradiculopathy:
 • Subacute onset of limb weakness, bladder/bowel dysfunction, muscle
dysfunction • Imaging: ring-enhanced ... lesion Pott's Disease ... contrast enhancement Brain ... surrounding edema and ring-enhancement ... neurological symptoms • Caused
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
HIV / AIDS - Differential ... Imaging: - MRI - ring ... Demyelinating disease caused ... periventricular areas ... differential #diagnosis #AIDS
Genital Ulcers - Atypical causes of genital ulcers that can be difficult to diagnose & manage.
Ulcers - Atypical causes ... Infections - ... serpiginous or ring-shaped ... Lipschutz ulcer Vulvar lesions ... Ulcers #Atypical #causes
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
Haverhill fever caused ... erythematous concentric rings ... to have a "wood-grain ... lung, esophageal, breast ... classic targetoid lesions
Posterior Reversible Encephalopathy Syndrome (PRES) Overview

Clinico-Radiological Syndrome, characterized by:
 • Headache
 • Seizures
 • Altered mental
parietal lobes of the brain ... showing cortical lesions ... the underlying cause ... with AEDs until ... cause identified