title: False aneurysm of a proper digital artery caused by repetitive microtrauma in a 16-year-old baseball player.
abstract: We report a case of false aneurysm of a proper digital artery of the thumb in a 16-year-old baseball player. Resection of the aneurysm and end-to-end anastomosis resulted in relief of the patient's symptoms and recovery allowing a return to baseball activity. Repetitive microtrauma, which is an atypical cause of a false aneurysm, to the ulnar aspect of the left thumb caused by swinging a bat led to formation of the false aneurysm. Although the occurrence of an aneurysm related to a sports activity is rare, surgeons should consider aneurysm as a possible diagnosis in a case with mass formation of the hand related to sports activity.
authors.affiliation: Department of Orthopaedic Surgery, Shimane University School of Medicine, 89-1, Enya, Izumo, Shimane, 693-8501, Japan. miyamoto@med.shimane-u.ac.jp
authors.forename: Wataru
authors.initials: W
authors.lastname: Miyamoto
authors.forename: Souichirou
authors.initials: S
authors.lastname: Yamamoto
authors.forename: Takahito
authors.initials: T
authors.lastname: Inoue
authors.forename: Yuji
authors.initials: Y
authors.lastname: Uchio
mesh_terms: D000293:Adolescent; D017541:Aneurysm, False / Q000209:etiology / Q000473:pathology / Q000601:surgery*; D001484:Baseball / Q000293:injuries*; D012090:Cumulative Trauma Disorders / Q000150:complications* / Q000601:surgery; D006801:Humans; D008297:Male; D013933:Thumb / Q000098:blood supply*