Lymph node calcification in malignant lymphoma. Presentation of nine cases and a review of the literature.

Lymph node calcification in malignant lymphoma is an uncommon radiologic finding. Eight cases are added to the 61 cases of lymph node calcification following radiation therapy for Hodgkin's disease, assembled from the literature. The typical radiographic appearance of punctate calcifications, usually found in the upper mediastinum, at times together with egg-shell type calcification, is confirmed. The mean time before appearance of calcification was 3 years after initial treatment. The calcification seems to be associated with a good prognosis and long-term survival. In addition, the radiologic and clinical findings in a patient with non-Hodgkin's lymphoma who developed calcifications in the involved area after treatment are presented.