Several Lipoma of Special Types
Wu Jiannong(Affiliated Hospital of zhengjang Medical Collage,zheagjiang 212001)
Pathological and immunohistochamical characterizations of 21 cases with special types of Iipoma were studied. The tumors in-cluded spindle cell Iipoma, lipoblastoma, infiltrating lipoma and pleomorphic lipoma, which were usually found in our daily work. lt is d ifficult to distinguish the tumors from liposarcoma. The tumors mentioned in this article were usually found in superficial position of tbe body. They grow up slowly and often bave capsules. We can obseryed lipoblast and mature lipocyte under the microscope. There were not pathologic mltosis and capillary net. Immunohistochamical findings showed that vimentin was positive in all cases,while desmin,lysozyme and S-100 were negative.