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  • Title: [Liposclerosing myxofibrous tumor of bone: a clinicopathologic analysis].
    Author: Zhou J, Hu D, Jiang Z, Zhang H.
    Journal: Zhonghua Bing Li Xue Za Zhi; 2016 Jan; 45(1):21-4. PubMed ID: 26791549.
    Abstract:
    OBJECTIVE: To explore the clinicopathologic features and imaging diagnosis of 17 cases of liposclerosing myxofibrous tumor (LSMFT) and to discuss the mechanism of the disease. METHODS: Cases of LSMFT diagnosed in 2014 were included in this retrospective study. The clinicopathologic features and imaging findings were evaluated. RESULTS: There were 17 cases of LSMFT, occurring in 11 men and 6 women with a mean age of 46 years (range, 26-67 years). Patients were asymptomatic or presented with pain localized over the lesions. Most (13/17) lesions were located in the intertrochanteric region. Radiographs showed well-defined and often extensively sclerotic margin. MRI showed the lesions to be relatively heterogeneous on T1W, and heterogeneous with high signal intensity on T2W with fat suppression. Microscopically, LSMFT was characterized by a complex mixture of histologic elements, including myxofibrous and collagen tissues, lipomatous areas, xanthoma cells, calcification, irregular ossification and pseudo-Paget's bone. CONCLUSIONS: LSMFT is a benign fibro-ossesous lesion with unique imaging characteristics and histologic features, occurring preferentially in some locations. It might represent end-stage degenerative changes in other benign bone lesions such as fibrous dysplasia, simple bone cyst and intraosseous lipoma secondary to trauma from forces and ischemic bone injury exerted on the intertrochanteric region of the femur.
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