Linfoma a cellule T periferiche con associata sindrome emofagocitica: un'entità di recente identificazione. Studio clinico-patologico ed immunoistochimico di due casi.

The authors report on two examples of peripheral T-cell lymphoma associated with hemophagocytic syndrome. The latter represents a recently described entity, which is characterized by pancytopenia, hepatosplenomegaly, fever and rapid downhill clinical course. Microscopic examination of different tissue samples shows bone-marrow, liver and spleen infiltration by small-medium sized lymphoid elements, which display peripheral T-cell phenotype and are associated with an exuberant hyperplasia of hemophagocytosing, benign-looking histiocytes. The clinical and pathological findings, along with the main differential diagnoses, are discussed.