178 results
Posterior Ankle Impingement (Os Trigonum) Syndrome - MSK Radiology
Imaging Findings:
 • Os trigonum which has marrow
Trigonum) Syndrome - MSK ... Case description ... torn ligament on MRI ... osteochondral lesion ... Radiology #diagnosis #msk
Focal Periphyseal Edema (FOPE lesion) - MSK Radiology
Imaging Findings:
 • Arrows identifying the characteristic edema-like signal
Periphyseal Edema (FOPE lesion ... ) - MSK Radiology ... repeated follow-up MRI ... #clinical #mri ... Radiology #diagnosis #msk
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Ring-Enhancing Lesions ... Ring-Enhancing Lesions ... Compatible syndrome + MRI ... lesions + toxo ... differential #diagnosis #causes
MAGIC DR – a handy mnemonic used to remember the potential causes of a cerebral ring
the potential causes ... ring enhancing lesion ... eg. tumefactive MS ... RingEnhancing #Lesions
Neuro-OphthaImoIogy - Visual Field Defects - Localization Map
 - Optic Nerve Lesion (Monocular vision loss)
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- Optic Nerve Lesion ... Infection • MS ... - Meyer's Loop Lesion ... Parietal Lobe Lesion ... Diagnosis #Anatomy #Causes
Guillain–Barré syndrome (GBS)
(aka: Landry–Guillain–Barré–Strohl syndrome:
	Most common cause of acute flaccid paralysis
	Rapidly progressive ascending paralysis & areflexia
	Autonomic
 Most common cause ... lower to upper areas ... hyperreflexia, multiple lesions ... hyperreflexia, spinal cord lesion ... on MRI
Tinnitus - Subjective (heard only by patient) - 90% - Differential Diagnosis Algorithm
Unilateral On Audiogram -
Audiogram - Perform MRI ... to rule out RC Lesion ... • Brainstem Lesion ... • Metabolic Causes ... Diagnosis #Algorithm #Causes
Principal patterns of loss of sensation.
 (a) Thalamic lesion: sensory loss throughout opposite side (rare).
(a) Thalamic lesion ... (b) Brainstem lesion ... ) Central cord lesion ... syrinx: 'suspended' areas ... MS: loss of proprioception
McDonald Criteria for Diagnosis of Multiple Sclerosis
 • 2 or more attacks, 2 or more lesions
attacks, 2 or more lesions ... more attacks, 1 lesion ... Dissemination in space on MR ... Dissemination in time on MR ... Multiple #Sclerosis #MS
Breast Discharge - Differential Diagnosis Algorithm
High Prolactin + Normal TSH
 • Microprolactinoma
 • Steroid Hormone Intake
Breast Discharge ... Pregnancy, Breast ... Stalk Compression/Lesion ... Hypothyroidism #Breast ... Endocrinology #Causes