Acute Aortic Dissection Following Treatment for Castration-Resistant 
Prostate Cancer.

A 65-year-old man presents to the emergency department with increasing back pain. His history includes hypertension, peripheral neuropathy, duodenal ulcer, superior mesenteric vein thrombus, stage IIB colon cancer treated with surgery and adjuvant chemotherapy, renal cell carcinoma treated with surgery, and prostate cancer treated with surgery and radiation. He is otherwise healthy. His family history is positive for colon cancer. Physical examination found significantly elevated blood pressure and a computed tomography scan of the thoracic and lumbar spine was performed, with findings of a type B aortic dissection extending from the aberrant right subclavian artery down to the abdominal aorta.
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