Pre-patellar Tumoral Calcinosis of Knee with Intra-articular Extension: An Index Case Study

Tumoral calcinosis, though rare, should be considered in differential diagnoses for periarticular calcifications, especially in younger patients. This case highlights the need for a multi-modal diagnostic approach and emphasizes that tumoral calcinosis can present with intra-articular involvement, a feature not previously reported in the knee joint. Long-term follow-up is essential due to the potential for recurrence.