
EVANSTON, Illinois-Although biopsy of sentinel lymph nodes is often considered an almost risk-free procedure in the staging of breast cancer, a retrospective chart review showed a surprising incidence of lymphedema associated with this procedure. Carole H. Martz, RN, MS, and colleagues at Evanston Northwestern Healthcare in Illinois reported a 3% risk of lymphedema after sentinel lymph node biopsy (SNLB, n = 303), compared to a 17% risk after axillary dissection (n = 117).