12 results
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
Diagnosis Framework ... Imaging: - MRI ... enhancement on CT ... Demyelinating disease caused ... subcortical white matter
Focal Periphyseal Edema (FOPE lesion) - MSK Radiology
Imaging Findings:
 • Arrows identifying the characteristic edema-like signal
FOPE lesion) - MSK ... Radiology Imaging ... characteristic "starburst" pattern ... repeated follow-up MRI ... #diagnosis #msk
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
Other tests: • CT ... Goodpasture's cause ... sparing of the lung ... seen on chest CT ... • IF staining patterns
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Diagnosis Framework ... • CT: Halo sign ... Lymphadenopathy, CNS ... #AIDS #pulmonary ... #differential #diagnosis
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
CNS Infections - ... Herpesviruses (MCC: HSV ... in alertness, confusion ... established by CSF or urine ... Singh @rav7ks #CNS
Transient Patellar Dislocation - MSK Radiology
Imaging Findings:
 • Hyperintense marrow edema of the anterolateral femoral condyle
Dislocation - MSK ... Radiology Imaging ... with this classic pattern ... knee #clinical #mri ... #diagnosis #msk
Sjogren's Syndrome Overview

Epidemiology:
• F > M: 9:1
• 5-6th Decades (can be any age)

Autoimmune exocrinopathy multisystemic disease
Hypocomplementemia • Can cause ... TYPE IV RTA, TYPE ... , INC risk PE, Pulmonary ... phenomenon (16%) MSK ... MALT Lymphoma • Lung
Summary of Oncologic Emergencies

Neutropenic fever:
- Fever + ANC < 500 → start cefepime ± vancomycin (if
suspected) - CT ... Treat underlying cause ... interventional radiology ... renal failure, pulmonary ... Oncology #HemeOnc #Diagnosis
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
- Differential Diagnosis ... oligoclonal bands • MRI ... white and gray matter ... tract, and often causes ... chorioretinitis, CNS
Langerhans Cell Histiocytosis (LCH)

Granulomatous Lesions comprising langerin-positive histiocytes and an inflammatory infiltrate can arise in virtually
CNS involvement: ... DIAGNOSIS • Imaging ... : X-rays, CT, or ... MRI to identify ... PET-CT / MRI: Staging