An additional tendon of the extensor digitorum brevis muscle of the foot: is there an accessory muscle?

An accessory muscle adjacent to the extensor digitorum brevis muscle was encountered between the extensor digitorum brevis muscle and the tendon of the peroneus brevis on the right foot of a 75-year-old male cadaver. This accessory muscle and its tendon is of clinical significance for clinicians performing tendon transfers and other surgical procedures in the region, or when they use EDB as pedicles or free flaps at the ankle area or in other body parts. Keywords: accessory muscle; extensor digitorum brevis; variation