title: Supraspinatus Intramuscular Calcified Hematoma or Necrosis Associated with Tendon Tear.
abstract: Introduction. Rotator cuff intramuscular calcification is a rare condition usually caused by heterotopic ossification and myositis ossificans. Case Presentation. We describe a patient with voluminous calcified mass entrapped in supraspinatus muscle associated with corresponding tendon tear. Histological examination corresponded to a calcified hematoma or necrosis. Patient was surgically managed with open excision of the calcified hematoma and rotator cuff arthroscopic repair. At 6 months, supraspinatus muscle was healed, and functional outcome was good. Discussion and Conclusion. We hypothesized that supraspinatus intramuscular calcified hematoma was responsible for mechanical stress on the tendon. This association has never been described.
authors.affiliation: Division of Orthopaedics and Trauma Surgery, La Tour Hospital, rue J.-D. Maillard 3, 1217 Meyrin, Switzerland ; Faculty of Medicine, University of Geneva, rue Michel-Servet 1, 1211 Geneva, Switzerland ; Division of Orthopaedics and Trauma Surgery, Department of Surgery, Geneva University Hospitals, rue Gabrielle-Perret-Gentil 4, 1211 Geneva, Switzerland.
authors.forename: Alexandre
authors.initials: A
authors.lastname: Lädermann
authors.affiliation: Laboratoire Dianapath, rue de la Colline 10, 1205 Geneva, Switzerland.
authors.forename: Muriel
authors.initials: M
authors.lastname: Genevay
authors.affiliation: Division of Orthopaedics and Trauma Surgery, Department of Surgery, Geneva University Hospitals, rue Gabrielle-Perret-Gentil 4, 1211 Geneva, Switzerland.
authors.forename: Sophie
authors.initials: S
authors.lastname: Abrassart
authors.affiliation: Division of Orthopaedics and Trauma Surgery, La Tour Hospital, rue J.-D. Maillard 3, 1217 Meyrin, Switzerland.
authors.forename: Adrien Jean-Pierre
authors.initials: AJ
authors.lastname: Schwitzguébel