16 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
PCR 50% sensitive ... splenomegaly Other infections ... multiple lesions Infectious ... Lesions #Brain #differential ... #diagnosis #causes
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
CNS Infection in ... should be based on clinical ... enhancement on CT ... Demyelinating disease ... #Infections #differential
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Agglutinin Syndrome (CAS ... Clinical Presentation ... • Symptoms of anemia ... - Mycoplasma, EBV ... younger pts) Differential
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... Lung Abscess - Clinical ... Leukocytosis, anemia ... seen • Chest CT ... of PCN allergy
Echinococcal Cysts in the Liver- The physical examination revealed hepatomegaly with a palpable hepatic mass. Laboratory
cyst in the right lobe ... Hydatid disease ... is caused by the ... #clinical #NEJM ... hepatic #radiology #CT
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
life-threatening diseases ... Other tests: • CT ... confirm DAH, r/o infection ... Goodpasture's cause ... seen on chest CT
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
CNS Infections - ... virus • CMV • EBV ... • Common clinical ... Singh @rav7ks #CNS ... #Infections #differential
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status NTM Cause ... of right middle lobe ... Bone Marrow - Anemia ... Imaging, high res CT ... #differential #
Hodgkin's Lymphoma Overview

Hodgkin's lymphoma (HL) is an uncommon hematological malignancy arising from mature B cells. It
• History of EBV ... infection • Family ... Hodgkin Lymphoma - Clinical ... Immunohistochemical studies (to differentiate ... number of sites of disease
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
that results in CNS ... Transverse Myelitis - Clinical ... causes need to ... Brucellosis - Dengue, EBV ... management #neurology #differential