Concurrent arboreal lipoma and synovial chondromatosis in an osteoarthritic knee: Insights from a rare case study — A surgical case report

Conditions mimicking tumors within the knee, such as arborescent lipoma and synovial chondromatosis, are generally benign yet closely linked to inflammatory or degenerative joint diseases. While each condition is commonly documented individually with osteoarthritis, their concurrent presentation within the same knee is extremely rare. This case report adheres to the SCARE 2023 guidelines (Sohrabi et al., 2023) and aims to shed light on the diagnostic and therapeutic challenges posed by the rare coexistence of these conditions, presenting unique management challenges.