Department of Radiology, University Hospital, LMU Munich, Munich, Germany.
Musculoskeletal Oncology, Department of Orthopaedic Surgery, Physical Medicine and Rehabilitation, University Hospital, LMU Munich, Campus Grosshadern, Munich, Germany.
Skeletal Radiol. 2021 Sep;50(9):1909-1913. doi: 10.1007/s00256-021-03758-z. Epub 2021 Mar 13.
Hydroxyapatite deposition disease (HADD) is a mostly uniarticular, self-limiting condition caused by deposition of hydroxyapatite (HA) crystals in tendons or in the peritendinous soft tissues. Commonly, the glenohumeral joint is affected. More rarely, the HA depot can be cause of a carpal tunnel syndrome due to an acute inflammatory reaction and space-occupying soft tissue oedema. We report a case of acute HA depot located at the volar site of the right wrist with affection of the deep flexor tendons and intraosseous migration into the lunate bone in a 50-year-old female. There are two main goals of this case report: First, to remind the diagnosis of HADD as a cause of wrist pain and also of carpal tunnel syndrome, as this entity being often misdiagnosed clinically, and second, to report a rare case of intraosseous migration of HA crystals into the lunate bone.
羟基磷灰石沉积病（HADD）是一种主要的单关节、自限性疾病，由羟基磷灰石（HA）晶体在肌腱或肌腱周围软组织中的沉积引起。通常，盂肱关节受到影响。更罕见的是，由于急性炎症反应和占位性软组织水肿，HA 沉积可能导致腕管综合征。我们报告了一例 50 岁女性右侧腕部掌侧出现急性 HA 沉积，影响深部屈肌腱，并向月骨内骨内迁移。本病例报告有两个主要目的：第一，提醒人们将 HADD 诊断为腕痛和腕管综合征的原因，因为这种疾病在临床上经常被误诊；第二，报告一例 HA 晶体罕见的骨内迁移至月骨的病例。
