15 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Ring-Enhancing Lesions ... Compatible syndrome + MRI ... lesions + toxo ... nodules, may also see ... #causes #radiology
Focal Periphyseal Edema (FOPE lesion) - MSK Radiology
Imaging Findings:
 • Arrows identifying the characteristic edema-like signal
Periphyseal Edema (FOPE lesion ... ) - MSK Radiology ... description: • FOPE lesions ... atraumatic adolescent knee ... Periphyseal #Edema #lesion
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
- Differential Diagnosis ... Imaging: - MRI ... parietal - Size lesions ... Enhancement: multifocal lesions ... punched-out" cystic lesions
Prior anterior glenohumeral joint dislocation with Hill-Sachs fracture and Perthes lesion
Imaging Findings:
 • The arrow is
and Perthes lesion ... This is a Perthes lesion ... stripping → Perthes lesion ... : • Bankart lesion ... #Perthes #lesion
BEE Syndromes - Non-inflammatory Causes

Immune-mediated conditions affecting the Brain, Eye, and Ear

Visual or auditory symptoms in
BEE Syndromes - ... nervous system (CNS ... infections • Herpes virus ... neuropathy (LHON) plus MRI ... lesions and clinical
Guillain–Barré syndrome (GBS)
(aka: Landry–Guillain–Barré–Strohl syndrome:
	Most common cause of acute flaccid paralysis
	Rapidly progressive ascending paralysis & areflexia
	Autonomic
Differential diagnosis ... Multiple Sclerosis: CNS ... hyperreflexia, multiple lesions ...  West Nile virus ... hyperreflexia, spinal cord lesion
Humeral Avulsion of the Inferior Glenohumeral Ligament (HAGL)
 • Imaging Findings:
 • Large defect of the
WITHOUT Bankart lesion ... Reverse HAGL (RHAGL) lesion ... BHAGL): Avulsion fracture ... shoulder #clinical #mri ... #clinical #Radiology
Subchondral Insufficiency Fracture
Imaging Findings:
 • Circle demarcating the region of edema within the medial femoral condyle.
Osteonecrosis of the Knee ... favored because lesion ... • See a linear ... #clinical #mri ... #clinical #Radiology
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
that results in CNS ... compressive cord lesion ... less swollen - Lesion ... or optic nerve lesions ... Herpes simplex virus
Immune Reconstitution Inflammatory Syndrome - Overview of IRIS

What Is IRIS?
	• A state of hyperinflammatory response that
osteitis, cutaneous lesions ... pneumonia, skin lesions ... Leprae - Cutaneous lesions ... flare, ocular lesions ... Worsening of cutaneous lesions