[Gastric cancer in chronic lymphocytic leukaemia patient--case report].

B-cell chronic lymphocytic leukaemia (CLL) is the most common type of leukaemia occurring in western countries and USA. Performed population study showed increasing risk of secondary neoplasms in this group of patients. A Richter's transformation (histologically aggressive lymphoid malignancy) is the most often subsequent kind of the cancers of CLL patients. Solid tumours such as cancer of lung, breast, skin, prostate belongs to other group of secondary neoplasm in CLL. There is no evidence of any correlation between secondary neoplasms incidence, CLL prognostic factors and stage of the disease. Our paper presents the case of CLL patient in early stage of the disease, having gastric cancer diagnosed.