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Table 2 Histopathological classification of synovial chondromatosis

From: Management of temporomandibular joint diseases: a rare case report of coexisting calcium pyrophosphate crystal deposition and synovial chondromatosis

Phase

Description

Phase 1

Cartilaginous tissue formation takes place (active synovitis) without loose bodies

Phase 2

Presence of both chondrosynovial changes and intraarticular loose bodies (i.e., nodular synovitis with loose bodies)

Phase 3

Completion of cartilaginous ossification and presence of loose bodies only (i.e., loose bodies with resolution of synovitis)