Autoimmune disease is a risk factor for the development of non-Hodgkin's lymphoma.

Objective: To investigate the relationship of prior autoimmune disease to the development of non-Hodgkin's lymphoma (NHL).

Methods: Patients with NHL (n = 278) seen from 1993 to 2002 were compared with a group of patients with other hematological disorders (controls, n = 317) seen at the same time. All patients were questioned about prior autoimmune disease.

Primary splenic lymphoma: report of 10 cases using the REAL classification.

Primary splenic lymphoma (PSL) is rare with a reported incidence of less than 1%. Diffuse large cell pathology has been reported in 22-33% of the cases and is felt to have a poor outcome. We report our experience in patients with PSL seen at Mount Sinai Medical Center during the years 1994-1999.

Non-Hodgkin's lymphoma in patients 70 years of age or older: factors associated with survival.

The incidence of non-Hodgkin's lymphoma (NHL) has increased dramatically especially in persons over 60 years of age. We reviewed our experience in patients with NHL who were 70 years of age or older and seen between 1992 and 1998 in an effort to find any unique risk factors in this age group. There were 64 patients.