Magnetic Resonance Imaging Findings of Primary Synovial Osteochondromatosis
PDF
Cite
Share
Request
Original Article
P: 238-241
2017

Magnetic Resonance Imaging Findings of Primary Synovial Osteochondromatosis

Acta Haematol Oncol Turc 2017;50(3):238-241
1. Dr Abdurrahman Yurtaslan Ankara Oncology Training And Research Hospital, Radiology Clinic, Ankara,Turkey
2. Dr Abdurrahman Yurtaslan Ankara Oncology Training And Research Hospital,Orthopedics and Traumatology Clinic, Ankara,Turkey
3. Bulent Ecevit Universıty, Department of Radiology
4.
No information available.
No information available
Received Date: 2016-04-25T10:02:41
Accepted Date: 2017-12-19T14:05:21
PDF
Cite
Share
Request

Abstract

INTRODUCTION

Primary synovial chondromatosis is an uncommon benign monoarticular disorder. It is characterized by proliferation and metaplastic transformation of the synovium. It is generally characterized by calcified cartilagenous structures in the joint space or in the tenosynovium. It involves one joint and knee, hip, wrist are commonly affected joints. Malignant degeneration into chondrosarcoma has been reported but is rare. Here, we aimed to present MR images of 10 patients with primary synovial osteochondromatosis.

METHODS

We retrospectively reviewed 10 pathologically confirmed cases of synovial chondromatosis. Patients’ demographics and clinical presentations were reviewed. Imaging was evaluated by two musculoskeletal radiologists with agreement by consensus. Images were evaluated for lesion location, shape, extent and signal characteristics on MR.

RESULTS

Among the ten patients, 6 were male, 4 were female with a mean age of 50. (14-70 years) Lesion locations included knee (n=4), ankle (n = 2), shoulder (n = 2), elbow (n = 1), hip (n = 1). Radiographs commonly showed milimetric nodular calcifications. Only one lesion involved adjacent bone. The two patients with shoulder involvement also involved extraarticular bursa and tenosynovium. The case with the hip involvement also involved iliopsoas and external obturator bursa.

DISCUSSION AND CONCLUSION

The radiographic and magnetic resonance imaging findings of synovial osteochondromatosis is typical. MRI is successful in determining the bone erosions and bursal extent of the intraarticular lesion.