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Anaplastic large-cell lymphoma (Ki-1 lymphoma) with expression of IL-5 mRNA and eosinophilic invasion
Y Takimoto1, H Tanaka, O Tanabe
1Department of Internal Medicine, Hiroshima University, Japan.
We examined a patient with anaplastic large-cell lymphoma (Ki-1 lymphoma) showing eosinophilic invasion of the tumor tissues. The number of eosinophils in the peripheral blood changed as a function of the stage of the disease. The IL-5 gene was expressed in the tumor tissues, suggesting that the eosinophilic invasion and eosinophilia were caused by IL-5 derived from the lymphoma cells.
We examined a patient with anaplastic large-cell lymphoma (Ki-1 lymphoma) showing eosinophilic invasion of the tumor tissues. The number of eosinophils in the peripheral blood changed as a function of the stage of the disease. The IL-5 gene was expressed in the tumor tissues, suggesting that the eosinophilic invasion and eosinophilia were caused by IL-5 derived from the lymphoma cells.