Primary synovial chondromatosis of the temporomandibular joint with suspected traumatic etiology

A case of synovial chondromatosis of the temporomandibular joint secondary to preauricular trauma

“…In contrast, secondary SC has evenly distributed chondrocytes, few of which are binucleated or enlarged, and is characterized by multiple cartilaginous nodules with an even distribution of chondrocytes that results in a band or zonal ring-like calcifications 5,9 . The case presented here is consistent with secondary SC because of its history of trauma, histologic pattern and nonaggressive behavior.…”

“…Temporomandibular joint (TMJ) involvement with SC is relatively uncommon. To the authors' knowledge, most descriptions of SC in the TMJ are isolated cases and small series [1][2][3][5][6][7]9,10 . The etiology has not been completely clarified.…”

Three Case Reports of Synovial Chondromatosis of Temporomandibular Joint: Histopathologic Analyses of Minute Cartilaginous Loose Bodies From Joint Lavage Fluid and Comparison With Phase II and III Cases

“…12 The reports of SC cases that occur after trauma suggest an etiologic correlation between SC and trauma. [5][6][7][8] McCain and de la Rua 6 hypothesized that a traumatic experience could separate cartilaginous tissue into the joint space, where it might be captured in the synovial tissue. Subsequently, these fragments, receiving nutrients from the synovium layer, could overgrow and undergo calcification.…”

“…Cases of SC arising secondary to trauma [5][6][7][8] have been reported, of which some were found to be in phase III. 6,7 In addition, TMDs with clenching, clicking, or trismus are conditions that indicate the patient has chronic traumatic irritation.…”

The use of arthrography in the diagnosis of temporomandibular joint synovial chondromatosis

“…However, some authors have suggested that both primary SC in the temporomandibular joint (TMJ), which is thought to be aggressive in behaviour, and secondary SC may be associated with previous trauma, repetitive microtrauma, degenerative arthritis and chronic abnormal loading leading to the detachment of chondrocytes. 3,4 The role of microtrauma in the development of secondary SC has been demonstrated in an animal model by Helmy et al 5 Similarly, Cai et al 6 reported trauma as an aetiological factor in SC.…”