Journal Information
Vol. 14. Issue 1.
Pages 56-58 (January - February 2018)
Vol. 14. Issue 1.
Pages 56-58 (January - February 2018)
Images in Clinical Rheumatology
Full text access
Synovial Osteochondromatosis of the Shoulder: Case Report and Literature Review
Osteocondromatosis sinovial de hombro. Reporte de un caso y revisión de la literatura
José Francisco Díaz Fernándeza,b,
Corresponding author

Corresponding author.
, Roberto Alejandro Peraza Mc Libertya
a Hospital Regional de Alta Especialidad de la Península de Yucatán, Mérida, Mexico
b Departamento de Imagenología y Rayos X, Hospital General Agustín O’Horan, Mérida, Mexico
This item has received
Article information
Full Text
Download PDF
Figures (3)
Show moreShow less
Full Text

Synovial osteochondromatosis was described in 1833 by Laennec.1 Its worldwide incidence is reported to be 1:100,0002 and it is found in a greater number of men than women. The joint most frequently affected is the knee.3 The clinical signs are nonspecific and the diagnosis requires imaging techniques.4 The treatment at the present time is surgical and consists of resection of the chondral bodies.5,6

Case Report

The patient was a 29-year-old woman who had a 4-year history of pain in right shoulder, associated with limitation of vertical abduction and characterized by an indolent course. When she visited her physician, she had detected another pain in the anterior region of her shoulder. She underwent imaging studies (Figs. 1 and 2), and the diagnosis was synovial osteochondromatosis.

Fig. 1.

Radiographs of the shoulder in true anteroposterior (AP), external rotation (ER) and internal rotation (IR) positions revealed the presence of multiple calcified bodies of the same size, distributed throughout the entire glenohumeral joint, as well as the subscapularis recess and the bicipital groove.

Fig. 2.

Magnetic resonance imaging was employed to acquire turbo spin echo diffusion weighted (DW) sequences with fat saturation that effectively demonstrated the anatomy of the shoulder joint and the presence of loose bodies previously identified in radiographs and ultrasound images. They had a characteristic behavior, with areas of lower signal intensity in the center than in the periphery, because of the calcification of the chondral bodies.


Arthroscopic resection enabled the removal of chondral fragments, which were sent to the pathology laboratory for analysis. The result was a histopathological diagnosis of synovial chondromatosis (Fig. 3). The patient's postoperative course was satisfactory, and the pain disappeared.

Fig. 3.

Chondral bodies were excised during an open surgical procedure. The histopathological diagnosis was synovial chondromatosis.


The findings observed (loose chondral bodies, joint effusion and generalized inflammatory changes) are compatible with reports in the literature, although, in this case, the patient was a woman.3

Ethical DisclosuresProtection of human and animal subjects

The authors declare that the procedures followed were in accordance with the regulations of the relevant clinical research ethics committee and with those of the Code of Ethics of the World Medical Association (Declaration of Helsinki).

Confidentiality of data

The authors declare that they have followed the protocols of their work center on the publication of patient data.

Right to privacy and informed consent

The authors have obtained the written informed consent of the patients or subjects mentioned in the article. The corresponding author is in possession of this document.

Conflicts of Interest

The authors declare they have no conflicts of interest.

W.B. Ober.
Tumors and tumorous conditions of the bones and joints.
Yale J Biol Med, 31 (1959), pp. 252-253
G. McKenzie, N. Raby, D. Ritchie.
A pictorial review of primary synovial osteochondromatosis.
Eur Radiol, 18 (2008), pp. 2662-2669
E. Fuller.
Case of the month #166: synovial chondromatosis of the temporal mandibular joint.
Can Assoc Radiol J, 62 (2016), pp. 151-153
A.C. Brower, D.J. Flemming.
Reactive arthritis.
Arthritis in black and white, pp. 215-225
J.W. Milgram.
The development of loose bodies in human joints.
Clin Orthop Relat Res, 124 (1977), pp. 292-303
P.J. Sheldon, D.M. Forrester, T.J. Learch.
Imaging of intraarticular masses.
Radiographics, 25 (2005), pp. 105-119

Please cite this article as: Díaz Fernández JF, Peraza Mc Liberty RA. Osteocondromatosis sinovial de hombro. Reporte de un caso y revisión de la literatura. Reumatol Clin. 2018;14:56–58.

Copyright © 2016. Elsevier España, S.L.U. and Sociedad Española de Reumatología y Colegio Mexicano de Reumatología
Reumatología Clínica (English Edition)
Article options
es en

¿Es usted profesional sanitario apto para prescribir o dispensar medicamentos?

Are you a health professional able to prescribe or dispense drugs?