A prevalence study, in non symptomatic volunteers, using ultrasound of distal forearm and wrist, revealed up to 47 % of patients with evidence of anomalous muscles, all of which, were variants of abductor digiti minimi muscle. A male over female prevalence was observed, and in 50 % of the cases, the condition was found to be bilateral.
An accessory belly of the abductor digiti minimi muscle: a case report and embryologic aspects.
Reverse palmaris longus and accessory abductor digiti minimi muscles were reported.
In dissecations of 40 formolized hands, we objectified to study the morphology and variations of the Abductor digiti minimi muscle. The muscle presented two muscular beams in 82,5 %, three beams in 15% and only 1 beam in 2,5 % of the cases.
The results found in the research allow to affirm that the Abductor digiti minimi muscle is formed by two muscular beams in the biggest part of the cases.
KEY WORDS: Anatomy; Hand; Abductor digiti minimi muscle; Museles.