peritoneal washing
Intraoperative cytological sampling procedure using saline irrigation to detect free cancer cells in the peritoneal cavity.
Full Definition
Peritoneal washing is a surgical staging procedure performed during gynecologic cancer operations to detect the presence of malignant cells floating freely in the peritoneal cavity. The procedure involves instilling sterile saline solution into the pelvis and paracolic gutters, gently agitating the fluid, and then aspirating it for cytological examination. This technique is particularly important in ovarian and endometrial cancer staging, as positive peritoneal cytology may upstage the tumor and influence treatment decisions. The procedure is typically performed at the beginning of surgery before manipulation of tissues that might artificially introduce cancer cells.
Usage
Usage note: Perform before tissue manipulation. Results may affect staging and prognosis.
In Context
- "Peritoneal washing revealed atypical cells suspicious for malignancy." — Operative report
- "Negative peritoneal washing supported the early-stage diagnosis." — Pathology report