Shaarif Bashir, Usman Hassan, Noreen Akhtar, Sajid Mushtaq.
Synovial Lipomatosis; a Clinicopathological study of a Rare Entity.
J Islamabad Med Dent Coll Jan ;7(4):235-8.

Objective: This study was conducted to analyse the clinicopathological and radiological features associated with Synovial lipomatosis.Patients and Methods: Cases diagnosed as Synovial lipomatosis from 2008 to 2018 were retrieved and clinical information and histology were reviewed.Results: Thirteen cases of Synovial lipomatosis were diagnosed between 2008 and 2018. Most common site was knee joint and mean age of presentation was 28.6. About 62% of subjects were males and mostly presented with joint pain and swelling. Two of the subjects had significant history of trauma and disease was bilateral in one of the cases. Microscopically, villous proliferation of synovium with infiltration of mature adipocytes was noted. Focal synovial hyperplasia and inflammatory infiltrate were other findings in some of the cases.Conclusion: Synovial lipomatosis should be considered in the differential diagnosis of joint pain and swelling and should be distinguished from Pigmented villonodular synovitis, Synovial haemangioma and intra-articular synovial lipoma (IASL) using radiological and histological features.

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