Background: Synovial lipoma is a rare entity and needs high index of suspicion for accurate diagnosis. It is a condition that needs early intervention to prevent progressive joint effusion and degeneration.
Case Presentation: This case report describes an adolescent patient with a rare unilateral presentation of synovial lipoma. A 17-year-old female presented with pain and swelling in her left knee from past 2 years. X-ray findings of left knee showed a soft tissue shadow. Left knee synovectomy was performed due to progression of disease. Grossly a single, yellowish, fatty soft tissue piece was received. Histologically, lesion chiefly consists of proliferating mature fat infiltrating the hypertrophic synovial villi.
Conclusion: Based on histopathological findings, a diagnosis of synovial lipoma was established. In given clinical scenario, synovial lipoma may be included in differential diagnosis of refractory chronic joint effusion and knee pain with otherwise negative workup.
Key words: Synovial lipoma, proliferating mature fat, knee pain, case report, adolescent
|
