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In addition, thymic atrophy occurs secondary to decreased thymic hormone secretion, which leads to decreased T-lymphocyte production.
Final diagnoses included one bronchogenic cyst and one combined bronchogenic cyst and thymic hyperplasia.
Routine sections revealed normal thymic tissue with fatty involution and no evidence of tumor.
In addition to the alveolar epithelial cells, host immune cells located outside the lung, such as splenic and thymic cells, undergo apoptosis during influenza infections.
Progressive growth of a spontaneous T cell lymphoma, designated as Dalton's lymphoma, causes suppression of immune responses and thymic atrophy.