Synovial chondromatosis of the foot: Two case reports and literature review

Figure 1 Histological features of synovium in chondromatosis: Trabecular and stroma, with collagen and new bone tissue forming; 10 × zoom (A) and 25 × zoom (B).

Figure 2 Radiographs of the ankle in Patient 1, after operative removal.

Figure 3 Pre-operative radiographs of Patient 2 with subtalar primary synovial chondromatosis.

Figure 4 Radiographs of the ankle in Patient 1, showing several loose bodies at the anterior compartment.

Figure 5 Magnetic resonance imaging of the ankle of Patient 2. Loose bodies and degenerative arthritis are shown.

Figure 6 Post-operative radiographs of Patient 2: Synovectomy, removal of loose bodies and arthrodesis of subtalar joint is performed. Youngswick and Akin osteotomies are performed to correct hallux valgus.