[Primary histiocytic lymphoma of the liver. Study of 2 cases and review of the literature].

The authors report two cases of primary histiocytic malignant lymphoma of the liver successfully treated by right hepatectomy. The first case, was free of secondary spread with a follow-up of ten years, although he received no adjuvant therapy. The second patient developed skin, bone and brain metastases, which disappeared after chemotherapy and radiotherapy. He has been free of recurrence for four years. Such primary liver tumors are very rare and are worth knowing because of the efficiency of treatment and of their rather good prognosis. Evolution is different from that observed in histiocytic malignant lymphomas developed in other sites. It is suggested that, in the liver, this tumor might originate and grow from Kupffer's cells. This histologic origin might explain the particular clinical and evolutive features of primary histiocytic malignant lymphomas of the liver.