The Versatile Extended Thoracodorsal Artery Perforator Flap for Breast Reconstruction.

Background: The thoracodorsal artery perforator (TAP) flap is a versatile tool that can be used to reconstruct the breast. The authors use preoperative perforator mapping using color Doppler ultrasonography and present a safe, efficient harvesting technique to demonstrate reliable use of the TAP flap in reconstructive surgery.

Methods: A multicenter, retrospective review was performed on all patients undergoing TAP flap reconstruction from August 2011 to November 2014.

A case of collision tumor or transdifferentiation between malignant melanoma and leiomyosarcoma.

A 73-year-old woman was referred to the hospital due to a pigmented, asymptomatic nevus on her right arm that had changed in size and color. The histopathological examination showed a superficial spreading malignant melanoma, Clark level III, 2.26 mm in thickness.