Lymphoblastic lymphoma: A clinicopathologic study of 95 patients
1981
A retrospective clinicopathologic study of lymphoblastic lymphoma was based on 95 patients from the files of the Repository Center for Lymphoma Clinical Studies. All patients were treated according to different protocols of Cooperative Oncology groups sponsored by the National Cancer Institute. The patients ranged in age from 4 to 84 years, with a median of 30 years. Sixty-eight patients were male and 27 were female, with respective median ages of 27 and 50 years. The male-to-female ratio was 2.5:1. Forty patients had mediastinal masses; 30 (75%) of whom were male. The median survival of all patients was 17 months (range 1–100 months). To ascertain the influence of various clinical and morphologic parameters on survival, univariate and multivariate statistical analyses were performed. Patients older than 30 years of age had significantly lower incidences of mediastinal involvement (P = 0.01), number of mitotic figures (P = 0.04), and development of leukemia (P = 0.02) than patients younger than 30. Whereas lymphoblastic lymphoma is generally considered to be a disease of children and young adults, this study indicates that lymphoblastic lymphoma occurs in all age groups. These findings further suggest that lymphoblastic lymphoma may have a different biologic behavior in older patients.
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