Vascular malformation in the hand causing adduction contracture of the thumb: a case report

Abstract

Vascular malformations of the muscle are rare non-proliferative vascular lesions, and few case reports have described intramuscular vascular malformations in the upper extremities. Vascular malformations of the muscle may produce musculoskeletal deformities due to muscle contracture. Symptomatic intramuscular vascular malformations are commonly treated with surgery and interventional management. We report a vascular malformation that could not be completely resected. It caused adduction contracture of the thumb in the hand. Sclerotherapy was performed before surgery, but the contracture did not improve. Thus, we additionally performed adductor tenotomy. There was no evidence of recurrence during 6 months of follow-up.