Ricerc@Sapienza

BACKGROUND: The association between the synovial chondromatosis (SC) and the calcium pyrophosphate deposition (pseudogotta) in temporomandibular joint (TMJ) is very rare and has been described just 1 patient in the literature. CLINICAL PRESENTATION: A 64-year-old woman was referred to Dipartimento di Scienze Odontostomatologiche e Maxillo-Facciali, Sapienza Università di Roma after complaining about right temporomandibular pain, limitation in mandibular movements, and tumefaction in the right preauricular region. The patient was hospitalized for the surgery.

Synovial chondromatosis (SC) of the temporomandibular joint is a pseudoneoplastic condition characterized by benign cartilaginous metaplasia of synovial tissue mesenchymal residues with intra-articular nodule formation. TMJ involvement is rare. Interposition of loose bodies in the articular space can generate pressure, leading to glenoid fossa erosion with intracranial extension. The aim of this study was to present six SC cases with intracranial extension treated using a surgical procedure. All the patients were treated with open surgery.

Background: Synovial chondromatosis (SC) of temporo- mandibular joint is a pseudoneoplastic condition characterized by benign cartilaginous metaplasia of mesenchymal residues of synovial tissue with intra articular nodules formation. TMJ involvement is rare. Interposition of loose bodies in the intra- articular space generates a pressure that could lead to glenoid fossa erosion with intracranial extension.