CPT® Code 38531

The procedure described by CPT® Code 38531 involves the open biopsy or excision of inguinofemoral lymph node(s). This surgical intervention is primarily aimed at diagnosing, treating, or preventing the spread of cancer to the lymph nodes located in the groin area. The inguinofemoral lymph nodes are critical in the lymphatic drainage system, particularly for cancers originating from the vulva, penis, anus, and skin of the torso. During this procedure, healthcare professionals may remove cancerous lymph nodes or those that are at a high risk of becoming cancerous. Additionally, the first lymph node in a chain, known as the sentinel node, may be biopsied to check for the presence of cancerous cells. The inguinofemoral region contains a chain of approximately ten superficial lymph nodes situated close to the skin's surface in the upper inner thigh, which drain into three to five deeper nodes located within the connective tissue of the upper thigh. The surgical approach typically involves making an incision in the groin area directly over the involved lymph nodes. Depending on the clinical scenario, the procedure may involve only the superficial nodes or may require dissection through the soft tissues to access the deeper nodes, all while taking care to protect surrounding blood vessels and nerves. During the procedure, one or more lymph nodes are carefully dissected free from the surrounding tissue and either removed entirely or sampled for biopsy. To facilitate healing, a small skin flap may be created to cover the incision, and drainage tubes may be placed to prevent fluid accumulation. The excised lymph nodes or tissue samples are then sent to a laboratory for pathological evaluation, which is reported separately, ensuring that any cancerous changes can be accurately assessed and managed.