marginal excision
A surgical technique that removes a tumor along with a thin shell of surrounding normal tissue, used for certain benign bone lesions.
Full Definition
Marginal excision is a surgical procedure in which a tumor is removed along with a thin margin of surrounding normal tissue. This technique involves dissecting in the reactive zone immediately adjacent to the tumor, providing minimal normal tissue margin. In orthopedic oncology, marginal excision is typically reserved for benign or low-grade malignant lesions where the risk of local recurrence is acceptable. For aggressive benign tumors, marginal excision may be combined with adjuvant treatments such as cryotherapy, phenol, or bone cement to reduce recurrence risk. This approach allows for maximal bone and joint preservation while providing adequate tumor control.
In Context
- "Marginal excision was performed for the giant cell tumor with adjuvant phenol treatment." — Operative report
- "The benign nature of the lesion allowed for marginal excision with joint preservation." — Surgical planning note