cloaca
Pronunciation: kloh-AY-kah
A rare complex anorectal malformation where the rectum, vagina, and urinary tract merge into a single common channel.
Full Definition
Cloaca represents the most severe form of anorectal malformation in females, occurring when the rectum, vagina, and urinary tract fail to separate during embryonic development, resulting in a single perineal opening. This complex anomaly requires specialized surgical reconstruction and poses significant challenges for imaging assessment. Radiologists must carefully evaluate the anatomy using contrast studies and MRI to guide surgical planning. The condition is often associated with other congenital anomalies and requires multidisciplinary care.
Usage
Usage note: Always lowercase unless beginning a sentence. Distinguish from other anorectal malformations in reports.
In Context
- "The contrast enema revealed a long common channel consistent with cloaca." — Pediatric radiology report
- "MRI is essential for preoperative planning in patients with cloaca to assess the anatomy of all three systems." — Clinical documentation