55 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Compatible syndrome + MRI ... toxo IgG • CNS PCR ... including: M, avium, TB ... #causes #radiology ... #neurology
Pott's Disease in Tuberculosis - Diagnosis and Management Summary
Epidemiology:
 - Typically from TB endemic areas
 -
Pott's Disease in ... Clinical Signs ... decreased reflexes Pathophysiology ... : - MRI is modality ... damage - CXR should
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
tuberculosis (LTBI) Pathophysiology ... characteristic features Clinical ... Tuberculin skin test ... staining, NAA (PCR ... HIV-infected patients should
Tree in Bud Sign
The Tree-in-Bud sign represents Endobronchial spread in a linear branching pattern and centrilobular
endobronchial TB ... Devpriyo Pal @drdevrad ... TreeInBud #Sign #diagnosis ... #clinical #radiology ... #ChestCT #pathophysiology
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
tuberculosis (LTBI) Pathophysiology ... characteristic features Clinical ... Tuberculin skin test ... staining, NAA (PCR ... HIV-infected patients should
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
monophasic Pathophysiology ... Transverse Myelitis - Clinical ... should be ordered ... , Hep A/B/CMV, TB ... #management #neurology
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
should be based ... on clinical presentation ... Imaging: - MRI ... Demyelinating disease ... caused by the JC
Cytomegalovirus (CMV) in HIV-AIDS Patients
Cytomegalovirus (CMV): double-stranded DNA virus, herpesvirus family.
CMV infection: virus isolation or detection
PCR and CMV pp65 ... antigenemia test ... 50 or less: • Neurologic ... Retinitis (Most common cause ... association with PJP/TB
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess Pathophysiology ... Lung Abscess - Clinical ... of PCN allergy ... westermani • Other: TB ... #differential #causes
Hearing Loss - Differential Diagnosis Framework

Hearing Loss Types:
• Conductive
• Sensorineural
• Mixed
Presbycusis is the most common type
- Differential Diagnosis ... The evaluation should ... include a: • Neurologic ... audiometry • Patients should ... ○ HIV ○ Lyme disease