1982 Volume 21 Issue 4 Pages 737-742
Malignant fibrous histiocytoma probably arising from the greater omentum of 47 y. o. woman was examined pathologically and cytodiagnostically, in parallel with its ultrastructual examination. The results are summarized as follows:
1) Pathological findings included the bundle like arrangement of short or long spindle cells and vacuolated mononuclear and large multinuclear cells.
2) Cytodiagnostically, two types of cells were found; fibroblast-like cells and histocyte-like cells. The former was composed of spindle and fibrous cells whose chromatins were sometimes coarse granular and histiocytic cells whose cytoplasmas were foamy with prominent nucleoli.
3) Ultrastructurally, the presence of fibroblast like and histiocyte like cells were confirmed, although the latter was less encountered.
