22 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Compatible syndrome + MRI ... • 80% with lung ... including: M, avium, TB ... #causes #radiology ... #neurology
CAVITY – a useful mnemonic for the causes of a cavitating lung mass.

C = cancer
mnemonic for the causes ... embolus I = infection ... (TB, fungal, staph ... bronchogenic cyst #Diagnosis ... Mnemonic #Cavitary #Lesions
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 ... lesions • Malnutrition ... characteristic features ... Tuberculosis Diagnosis ... #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 ... lesions • Malnutrition ... characteristic features ... Tuberculosis Diagnosis ... #Diagnosis #Management
Hemoptysis - Differential Diagnosis Framework
Airways: 
 • Bronchitis
 • Bronchiectasis
 • Malignancy: Primary bronchogenic CA, Endobronchial
Fistulas • Dieulafoy lesion ... Parenchyma: • Infection ... : TB, Paragonimus ... westermani, PNA, Lung ... #pulmonary #causes
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
monophasic Pathophysiology ... Alterations: - Sensory features ... compressive cord lesion ... , Hep A/B/CMV, TB ... #management #neurology
Neurological Manifestations of Tuberculosis
Spinal Arachnoiditis & Polyradiculopathy:
 • Subacute onset of limb weakness, bladder/bowel dysfunction, muscle
ring-enhanced lesion ... neurological symptoms • Caused ... #Tuberculosis #diagnosis ... #differential #TB ... #neurology
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... polymicrobial infection ... Abscess Pathophysiology ... stable residual lesion ... #Abscess #pulmonary
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
- Differential Diagnosis ... cells per μL • Diagnosis ... and radiographic features ... Imaging: - MRI ... Demyelinating disease caused
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
result in permanent neurologic ... Infarction - Infection ... Vertebral burst fracture ... #differential #diagnosis ... #neurology