J Wrist Surg 2021; 10(05): 436-439
DOI: 10.1055/s-0040-1722572
Case Report

Surgical Management of Extensor Digitorum Brevis Manus Anomaly with a Dorsal Ganglion Cyst

Feargal J. Geraghty
1   Kendall General Surgery Residency, National University of Ireland Galway, Galway, Ireland
Lisa Anderson
2   Texas A&M Health Science Center College of Medicine, Texas Tech, Lubbock, Texas
Haaris Mir
3   Kendall Regional Medical Center, Indiana University School of Medicine, Indianapolis, Indiana
Lily Daniali
4   Burn and Reconstructive Centers of America, Swedish Medical Center, Englewood, Colorado
Joseph E. Imbriglia
5   Orthopedic Hand Surgery, University of Pittsburgh Medical Center/Hand UpperEx Center, Pittsburgh, Pennsylvania
Benson J. Pulikkottil
4   Burn and Reconstructive Centers of America, Swedish Medical Center, Englewood, Colorado
› Author Affiliations


Background The most common soft tissue tumor of the hand is the dorsal ganglion cyst and often is an indication for surgical excision. The differential diagnoses for dorsal hand masses include but are not limited to tenosynovitis, epidermoid cyst, abscess, lipoma, xanthoma, rheumatoid nodule, tophus, carpal boss, myositis ossificans, foreign body granuloma, neoplasm, and anomalous muscles.

Case Description Our case report reflects the latter, a 33-year-old female who presented with a 3-year history of a symptomatic dorsal ganglion cyst of her left wrist. She is a female in her 30s, with progressive, worsening pain on wrist extension. Intraoperatively, it was determined that an anomalous extensor digitorum brevis manus (EDBM) was present and may have contributed to her pain and was excised.

Literature Review The literature is sparse with the surgical management of EDBM. This case study aims to explore algorithms for managing simultaneous EDBM with a dorsal wrist ganglion, which is clinically relevant for any hand surgeon, when faced with a similar intra-operative management situation.

Ethical Approval

This is an ethical disclosure that any information and images obtained from this case report patient were obtained with consent and validated for use and publication by the patient, abiding by HIPAA guidelines and hospital guidelines. Formal waiver by hospital research review committee has been obtained.

Publication History

Received: 12 September 2020

Accepted: 01 December 2020

Article published online:
03 February 2021

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