29 results
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
Pott's Disease in Tuberculosis - Diagnosis and Management Summary
Epidemiology:
 - Typically from TB endemic areas
 -
extrapulmonary cases ... Clinical Signs ... decreased reflexes Pathophysiology ... : - MRI is modality ... damage - CXR should
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
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 ... staining, NAA (PCR ... HIV-infected patients should ... #Diagnosis #Management
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 ... staining, NAA (PCR ... HIV-infected patients should ... #Diagnosis #Management
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
should be based ... on clinical presentation ... antiretroviral therapy should ... Imaging: - MRI ... Demyelinating disease caused
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
monophasic Pathophysiology ... Transverse Myelitis - Clinical ... negative, MOG-IgG test ... , Hep A/B/CMV, TB ... #management #neurology
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
Algorithm regarding the diagnosis and treatment of Hereditary Hemochromatosis HH. 

Step 1: In the patient with
Algorithm regarding ... the diagnosis and ... initial screening test ... liver biopsy or MRI ... #diagnosis #management
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
- Emergency Causes ... • Provocative Tests ... absent anal wink test ... Imaging studies: • MRI ... #causes #neurology