21 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Compatible syndrome + MRI ... IgG • CNS PCR ... including: M, avium, TB ... Syphilis • Pyogenic Abscess ... #Brain #differential
Cavitary Lung Disease - Differential Diagnosis and Workup Algorithm
Acute / Subacute:
 • Acute Infections: Lung abscess,
Diagnosis and Workup ... : Lung abscess, ... : TB, NTB, Fungal ... #Algorithm #lesion ... #pulmonary #differential
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
CNS Infection in ... parietal - Size lesions ... Enhancement: multifocal lesions ... punched-out" cystic lesions ... #Infections #differential
Hemoptysis - Differential Diagnosis Framework
Airways: 
 • Bronchitis
 • Bronchiectasis
 • Malignancy: Primary bronchogenic CA, Endobronchial
Fistulas • Dieulafoy lesion ... Parenchyma: • Infection ... : TB, Paragonimus ... westermani, PNA, Lung abscess ... #Diagnosis #pulmonary
CAVITY – a useful mnemonic for the causes of a cavitating lung mass.

C = cancer
embolus I = infection ... - pulmonary abscess ... (TB, fungal, staph ... Mnemonic #Cavitary #Lesions ... #Differential #
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
etc) • CNS -> ... Space occupying lesions ... Brain tumor • Lesions ... : Brain abscess ... Lesions Of The Peripheral
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
cord neurological lesion ... the site of a lesion ... Corticospinal Tract Lesions ... Infections: - ... 5 levels below lesion
Causes of Hypotonic Infant (Floppy Newborn) - Differential Diagnosis Algorithm
Central Nervous System - Decreased LOC, Axial
Diagnosis Algorithm ... Hemorrhage • CNS ... Infection ... Intracranial Mass/lesion ... Hematoma • Abscess
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... polymicrobial infection ... stable residual lesion ... Differential Diagnosis ... #pulmonary #differential
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
lesions • Malnutrition ... emboli • Lung abscess ... Tuberculosis Diagnosis ... staining, NAA (PCR ... #Diagnosis #Management