Chronic expanding hematomas occur in many locations, often simulating neoplasms. All have the same structure with a central mass of blood, a wall of granulation tissue, and dense, fibrous tissue at the periphery. The self-perpetuating expanding nature of the lesion appears to be due to the irritant effects of blood and its breakdown products, causing repeated exudation or bleeding from capillaries in the granulation tissue.
(JAMA 244:2441-2442, 1980)
Reid JD, Kommareddi S, Lankerani M, Park MC. Chronic Expanding Hematomas: A Clinicopathologic Entity. JAMA. 1980;244(21):2441–2442. doi:10.1001/jama.1980.03310210043026
Customize your JAMA Network experience by selecting one or more topics from the list below.
Create a personal account or sign in to: