Mixoma maligno de partes blandas: Tipificación histológica y ultraestructural

A case, studied by electronmicroscope, of recurrent myxoma localized in a lower limb is reported during four years course, and up to death due to peritonial spreading. It is very difficult in these tumours to differenciate betwen beningn and malignat types, as well as the differencial diagnosis with liposarcoma mixoid. The ultrarnicroscopic examination allows only a form of mesensghymal cell with high mucoprotein activity in fat cytoplasmatic deposits and outside thecells.

A case, studied by electronmicroscope, of recurrent myxoma localized in a lower limb is reported during four years course, and up to death due to peritonial spreading. It is very difficult in these tumours to differenciate betwen beningn and malignat types, as well as the differencial diagnosis with liposarcoma mixoid. The ultrarnicroscopic examination allows only a form of mesensghymal cell with high mucoprotein activity in fat cytoplasmatic deposits and outside thecells.