10 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
PCR 50% sensitive ... with lung nodules ... #Brain #differential ... #diagnosis #causes ... #radiology #neurology
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
HIV / AIDS - Differential ... Diagnosis Framework ... presentation, temporal evolution ... enhancement on CT ... #Infections #differential
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
, like cyst, cavity ... describe a chest X-ray ... #CXR #Lucency #Differential ... #Cyst #Lung #Pulmonary ... #Diagnosis #Radiology
Etiologies of pulmonary infections according to CT-scan patterns. 
CMV cytomegalovirus, GM galactomannan, HSV herpes simplex virus,
Etiologies of pulmonary ... virus NODULAR LESIONS ... #Lung #Infections ... ComputedTomography #Differential ... #Diagnosis #Chest
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
failure, COPD, Lung ... in particular) Evaluation ... CXR +/- High res CT ... HIVAIDS #workup #diagnosis ... #evaluation #differential
Progressive Massive Fibrosis aka Complicated Silicosis.
Silicosis is a fibrotic lung disease caused by inhalation of crystalline
is a fibrotic lung ... and para hilar regions ... Calcification (seen in CT ... #CXR #Chest #XRay ... #labeled #pulmonary
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... seen • Chest CT ... stable residual lesion ... #Abscess #pulmonary ... #differential #
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
in HIV - Differential ... • CT: Halo sign ... Lymphadenopathy, CNS ... fever, cough and cavitary ... Infections #HIV #AIDS #pulmonary
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
• Nodular or cavitary ... lesions - Centrilobular ... Mimics TB with: Cavitary ... Imaging, high res CT ... NTM #Infections #differential
Preoperative Risk Evaluation

Major Pre-Op Questions:
1. Does the patient have any modifiable risk factors that could be
Preoperative Risk Evaluation ... neuroexam - Oral cavity ... one post op Cardiology ... unless prior heart/lung ... stratification #diagnosis