Wednesday, June 18, 2008

10%

This is a biopsy from a patient with episodic headache, sweating, tachycardia, and hypertension.

Challenge: What's the diagnosis?

Image shown under GNU Free Documentation License.

3 comments:

tree said...

Pheochromocytoma

Alex said...

pheo?

Craig said...

10%

The histology is a pheochromocytoma from an adrenectomy specimen. The 10% rule is that 10% pheos are malignant, 10% are extra-adrenal, 10% arise in childhood, 10% are familial, 10% recur after being resected, and you’re 10 times more likely to see this on an exam than in real life.