Abstract
Lipoma is benign soft-tissue tumor that consists entirely of mature fat and can occur in a superficial or deep location. Lipoma of the foot and ankle can even develop within a tendon sheath or joint. Classically, lipoma is resected via open approach, which may result in a lengthy disfiguring surgical scar. Endoscopic en-bloc tumor resection is a minimally invasive approach and can provide a whole block specimen for histologic examination. The purpose of this Technical Note is to describe the details of endoscopic en-bloc resection of lipoma of the tibialis anterior tendon.