title: Brown tumor of the patella caused by primary hyperparathyroidism: a case report.
abstract: It has been reported that the common sites of brown tumors are the jaw, pelvis, ribs, femurs and clavicles. We report our experience in a case of brown tumor of the patella caused by primary hyperparathyroidism. An initial radiograph and CT showed an osteolytic lesion and MR images showed a mixed solid and multiloculated cystic tumor in the right patella. One month after the parathyroidectomy, rapid bone formation was observed on both radiographs and CT images.
authors.affiliation: Department of Orthopaedic Surgery, Hamanomachi Hospital, Fukuoka 810-8539, Japan.
authors.forename: Tomoko
authors.initials: T
authors.lastname: Irie
authors.affiliation: Department of Orthopaedic Surgery, Hamanomachi Hospital, Fukuoka 810-8539, Japan.
authors.forename: Taro
authors.initials: T
authors.lastname: Mawatari
authors.affiliation: Department of Orthopaedic Surgery, Hamanomachi Hospital, Fukuoka 810-8539, Japan.
authors.forename: Satoshi
authors.initials: S
authors.lastname: Ikemura
authors.affiliation: Department of Orthopaedic Surgery, Hamanomachi Hospital, Fukuoka 810-8539, Japan.
authors.forename: Gen
authors.initials: G
authors.lastname: Matsui
authors.affiliation: Department of Orthopaedic Surgery, Hamanomachi Hospital, Fukuoka 810-8539, Japan.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Iguchi
authors.affiliation: Department of Orthopaedic Surgery, Hamanomachi Hospital, Fukuoka 810-8539, Japan.
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Mitsuyasu
mesh_terms: D000328:Adult; D015519:Bone Density; D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery*; D005260:Female; D006801:Humans; D049950:Hyperparathyroidism, Primary / Q000150:complications* / Q000601:surgery*; D016105:Parathyroidectomy; D010329:Patella / Q000000981:diagnostic imaging / Q000473:pathology*; D014057:Tomography, X-Ray Computed
keywords: Brown tumor; Hungry bone syndrome; Patella