Tendon variations of extensor digitorum and abductor pollicis longus muscles

Tendon variations of extensor digitorum and abductor pollicis longus muscles were observed in a 65-year-old male formalin fixed cadaver, during the dissections for second year medical students at the Gulhane Military Medical Academy Anatomy Dissection Laboratory. In the right forearm, the extensor digitorum muscle had a tripled tendon for the 3rd finger and a doubled tendon for the ring finger. The extensor digiti minimi muscle also had a doubled tendon. There was also a communicating tendon between the ring finger’s tendon of the extensor digitorum muscle and the extensor digiti minimi muscle’s tendon. The intertendinous connections between the tendons of extensor digitorum muscle were in normal locations. In left forearm, the abductor pollicis longus muscle had a tripled tendon. A thin additional tendon slip from the abductor pollicis longus was inserting into the abductor pollicis brevis. The extensor pollicis longus and brevis muscles were in their normal anatomical locations.