tumor seeding
Inadvertent spread of malignant cells during surgical manipulation or biopsy procedures.
Full Definition
Tumor seeding refers to the iatrogenic dissemination of malignant cells during surgical procedures, biopsies, or other invasive interventions. This can occur through direct implantation of tumor cells in the surgical field, along needle tracks from biopsies, or at port sites during laparoscopic procedures. While relatively rare, tumor seeding represents a serious complication that can convert potentially curable disease into metastatic disease. Prevention strategies include minimizing tumor manipulation, using appropriate surgical techniques, and considering alternative diagnostic approaches in high-risk cases.
Usage
Usage note: Distinguish from natural tumor progression or recurrence.
In Context
- "Port site tumor seeding was identified six months after laparoscopic liver resection." — Follow-up imaging report
- "The risk of tumor seeding must be weighed against diagnostic benefits when considering core biopsy." — Multidisciplinary discussion