partial mastectomy
Surgical removal of the tumor and a margin of surrounding normal tissue while preserving most of the breast.
Full Definition
Partial mastectomy, also known as breast-conserving surgery or segmental mastectomy, involves surgical removal of the tumor along with a rim of normal tissue while leaving the majority of the breast intact. The procedure aims to achieve complete tumor removal with negative surgical margins while maintaining breast appearance and function. It is typically followed by radiation therapy to reduce local recurrence risk. The technique is suitable for early-stage breast cancers and requires adequate tumor-to-breast size ratio for acceptable cosmetic outcomes.
Usage
Usage note: Often used interchangeably with lumpectomy, though partial mastectomy may imply larger tissue removal.
In Context
- "Partial mastectomy achieved clear margins with excellent cosmetic results." — surgical report
- "The patient opted for partial mastectomy followed by adjuvant radiation therapy." — treatment plan