Laparoscopic pelvic lymph node dissection for malignant foot melanoma

Abstract

A 39 year-old woman with malignant foot melanoma underwent wide excision of the primary tumor with a safety margin and sentinel lymph node biopsy (SLNB) for the right inguinal lymph node. SLNB was positive and a computed tomography (CT) scan revealed right iliac lymph node swelling. Positron emission tomography computed tomography (PET–CT) scan of the lymph nodes revealed abnormal uptake of fluorodeoxyglucose (FDG). We performed a laparoscopic pelvic lymph node obturator, iliac lymph node) dissection. During the operation, several black lymph nodes were observed in the iliac lymph node. Pathologically, the iliac lymph node consisted of metastasized atypical melanocytes. This surgical method for pelvic lymph node dissection is not a standard procedure among institutions. There have been no reported cases of malignant melanoma with pelvic lymph node metastasis treated by laparoscopic surgery. However, due to the minimally invasive technique, this method is worth considering to be used for pelvic lymph node dissection in malignant melanoma as well as other cancers in the field of urology or gynecology.

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