parametrial tissue
Pronunciation: par-uh-MEE-tree-al
Connective tissue surrounding the cervix and upper vagina, containing blood vessels, lymphatics, and nerves. Surgically significant in radical procedures.
Full Definition
Parametrial tissue refers to the loose connective tissue that surrounds the cervix and upper portion of the vagina, extending laterally toward the pelvic sidewall. This tissue contains important vascular structures including branches of the uterine artery and vein, lymphatic channels, and autonomic nerve fibers. In oncologic surgery, the extent of parametrial resection is crucial for achieving adequate margins while preserving bladder and bowel function. The parametria are divided into medial and lateral portions, with different surgical approaches required for complete resection.
Usage
Usage note: Distinguish from parametrium (the broader anatomical region) versus parametrial tissue (the specific connective tissue component).
In Context
- "Wide excision of parametrial tissue was performed to achieve negative margins." — pathology report
- "The parametrial tissue showed no evidence of tumor extension on frozen section analysis." — operative note