Accessory extensor pollicis longus from the extensor digitorum: a rare case report and review of the literature

ConclusionThis study documents an extremely rare extensor tendon to the thumb originating from the extensor digitorum, with a unique attachment to the normal extensor pollicis tendon. There have been minimal accounts of this variation, and the present report adds to the limited literature. Furthermore, the report suggests a new subtype, 1f, be included in the existing classification system. Surgeons should be aware of this rare variant for proper evaluation, diagnosis and surgical treatment. Further anatomical studies are needed to study the prevalence of this variant.

Source: Surgical and Radiologic Anatomy - July 1, 2023 Category: Anatomy Source Type: research