title: Acquired basophil and eosinophil deficiency in a patient with hypogammaglobulinaemia associated with thymoma.
abstract: A 55-year-old male with a history of recurrent bacterial and viral infection was found to have hypogammaglobulinaemia in association with a benign thymoma. The patient lacked eosinophils and was deficient in basophils in both the peripheral blood and bone marrow. The absence of eosinophils in a skin challenge known to recruit these cells, and below normal total peripheral blood leucocyte histamine content further suggests a deficiency of eosinophils and basophils respectively. Abnormal suppressor T cell function was documented both phenotypically, using OKT monoclonal antisera, and functionally in pokeweed mitogen stimulated cultures. This patient is the first reported with a deficiency of both eosinophils and basophils occurring in the presence of hypogammaglobulinaemia and thymoma; these abnormalities may be related to the abnormal suppressor T cell function that is present.
mesh_terms: D000361:Agammaglobulinemia / Q000150:complications*; D001491:Basophils; D004804:Eosinophils; D006801:Humans; D006968:Hypersensitivity, Delayed / Q000276:immunology; D007970:Leukopenia / Q000209:etiology*; D008213:Lymphocyte Activation / Q000187:drug effects; D008297:Male; D008875:Middle Aged; D011043:Pokeweed Mitogens / Q000494:pharmacology; D012397:Rosette Formation; D050378:T-Lymphocytes, Regulatory / Q000276:immunology; D013945:Thymoma / Q000150:complications*
chemical_list: D011043:Pokeweed Mitogens