retroperitoneal hematoma
Pronunciation: ret-roh-pair-ih-toh-NEE-al hee-mah-TOH-mah
Blood collection in the retroperitoneal space, often resulting from pelvic fractures or great vessel injury.
Full Definition
A retroperitoneal hematoma is an accumulation of blood in the potential space behind the peritoneum, typically caused by injury to retroperitoneal organs, great vessels, or pelvic fractures. These hematomas can be massive and life-threatening due to the large potential space and proximity to major blood vessels. Classification systems (Zone I, II, III) help guide surgical decision-making based on anatomical location and likelihood of specific organ involvement.
Usage
Usage note: Two words. Plural is 'retroperitoneal hematomas'. Zone classification should be capitalized when specified.
In Context
- "CT imaging revealed a large retroperitoneal hematoma extending into the pelvis." — Radiology report
- "The Zone II retroperitoneal hematoma was explored due to concern for renal vessel injury." — Operative report