Dyspnea & a Mediastinal Mass

Vein-graft aneurysms
An elderly woman presents with dyspnea years after CABG surgery. A mediastinal mass is found. Explore the broad differential diagnosis and key findings.
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Unsteady Gait? Check the Meds

Metronidazole-associated encephalopathy
A patient presents with dysarthria and gait instability. Brain MRI shows symmetric FLAIR signal in the dentate nuclei. What is the most likely diagnosis?
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Postpartum Hypertension & Aortic Disruption

Takayasu's arteritis
A 36-year-old woman develops uncontrolled hypertension post-C-section. Imaging reveals severe bilateral renal artery stenosis and a disrupted aorta. What is it?
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Painless Growths in the Mouth

Human papillomavirus
A patient with HIV presents with painless warty lesions in the mouth. Explore the differential diagnosis and identify the most likely viral cause.
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A Puzzling Facial Rash & Pain

Varicella-zoster virus
A patient presents with a painful, one-sided facial rash, ear pain, and tongue plaques. Explore the differential for a dermatomal vesicular eruption.
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When a Brain Mass Isn’t a Tumor

Thrombosed intracranial aneurysm
A 79-year-old woman with gradual neurological decline and memory loss is found to have a large brain mass. Discover the surprising final diagnosis.
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Asymptomatic Rash, Systemic Link?

Generalized granuloma annulare
Explore a case of widespread, asymptomatic skin lesions in an older adult. Learn how this dermatological finding can point to an underlying metabolic condition.
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The Case of the Purple Toes

Cholesterol embolization
An 88-year-old man with a history of CABG and TAVR presents with a skin condition on his toes. Explore the differential diagnosis for this complication.
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Peripheral Edema & A Striking X-Ray

Giant right atrium
A man presents with new peripheral edema. His chest X-ray shows a surprising finding. Explore the diagnosis of a rare cardiac anomaly.
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The Hair-on-End Skull Sign

Sickle cell disease
A non-contrast CT head reveals a thickened calvaria. Explore the differential diagnosis for the classic 'hair-on-end' sign seen in hemolytic anemias.
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