retroperitoneal sarcoma
Also written as: RPS — retroperitoneal sarcoma
Rare malignant tumor arising in the retroperitoneal space, often presenting as large masses compressing adjacent organs.
Full Definition
Retroperitoneal sarcomas are uncommon malignant tumors that develop in the retroperitoneal space, the area behind the peritoneum containing the kidneys, adrenal glands, and major blood vessels. These tumors often grow to considerable size before causing symptoms due to the expansive nature of the retroperitoneal space. The most common subtypes include liposarcoma and leiomyosarcoma. Treatment typically involves complete surgical resection, which may require removal of adjacent organs due to the tumor's proximity to vital structures. The prognosis depends on tumor grade, size, and completeness of resection.
Usage
Usage note: Hyphenate 'retroperitoneal' when used as an adjective. May be abbreviated as RPS in specialized contexts.
In Context
- "The multidisciplinary team planned en bloc resection of the retroperitoneal sarcoma with nephrectomy." — Surgical planning note
- "High-grade retroperitoneal sarcoma carries a significant risk of local recurrence despite complete resection." — Clinical guideline