PMID: 6975807Dec 1, 1981Paper

Thymic gallium-67 localization in pediatric patients on chemotherapy: concise communication

Journal of Nuclear Medicine : Official Publication, Society of Nuclear Medicine
D M DonahueW P Tunell

Abstract

Localization of Ga-67 in the thymus has been reported to occur in children. In our control group of 87 patients, 15% of children under 5 yr and 11% of children over 5 yr demonstrated thymic localization. In contrast, in our study group of seven children with acute lymphocytic leukemia or malignant lymphoma, lymphocytic diffuse, treated on a modified non-Hodgkin's lymphoma protocol, Sloan-Kettering LSA2-L2, thymic localization occurred during treatment in five of the seven. We conclude that increased thymic gallium localization in children under chemotherapy for a known malignancy may reflect increased activity of thymic medullary epithelial cells and regeneration of thymic lymphocytes during recovery form involution induced by certain chemotherapeutic agents.

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