Study of Ki 67 antigen expression in some fibrohistiocytic fumours

ABSTRACT

This study was done on four cases of fibrohistiocytic tumors, two benign fibrous histiocytoma and two malignant storiform fibrous histiocytoma. It was believed that growth fraction with Ki 67 increased relatively and respectively with the advanced steps of tumor progression which were generally characterized by an increased growth fraction with neoplastic cell population. This work aimed to study the growth fraction determined with Ki 67 antigen in some fibrohistiocytic lesions