Mysterious Rings in the Eye

Lipid deposition
A 63-year-old woman with cataracts presents with unusual double white-yellow rings in both corneas. Learn about the cause of this ophthalmologic finding.
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Breathless and Dizzy: A Hematology Mystery

Oxidative Injury
A 57-year-old woman presents with severe anemia, shortness of breath, and dizziness. Explore the diagnostic journey of this complex hemolytic anemia case.
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When Joint Pain Isn’t Just Joint Pain

Chest imaging
Discover a case of widespread joint pain and digital clubbing in a smoker. What's the critical next step when radiographs show symmetric periostitis?
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When Arteries Tunnel Through Muscle

Nitroglycerin
A 66-year-old man with exertional angina suffers cardiac arrest. Angiography reveals a surprising cause: a coronary artery tunneling through the myocardium.
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A Case of Inflamed Arteries

Hepatitis B
A 62-year-old man presents with muscle aches, weakness, and significant weight loss. Explore the diagnostic journey of this systemic inflammatory condition.
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A Butterfly in the Throat?

Treponema pallidum hemagglutination assay
A 40-year-old man presents with a sore throat and unusual butterfly-shaped white plaques in his oropharynx. Explore the diagnostic journey for this rare finding.
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Pacing Spikes, No Capture

Complete heart block
A 96-year-old woman develops chest pain days after pacemaker implantation. Her ECG shows pacing spikes but no capture. What's the underlying rhythm?
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A Milky Mystery in the Pleura

Triglyceride
A 63-year-old man with lymphoma presents with dyspnea. Thoracentesis reveals milky pleural fluid. Explore the key diagnostic test for chylothorax.
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Blood Blisters on the Tongue

Thrombocytopenia
A 76-year-old man presents with sudden blood-filled blisters on the tongue and purpura. Explore the diagnosis behind these alarming mucocutaneous findings.
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The Danger of a Deep Sleep

Vertical nystagmus
A 44-year-old man wakes up with vision loss after taking sedatives and alcohol. Explore the diagnosis of ischemic retinopathy from orbital compression.
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