歯肉切開後に異常出血をきたした真性多血症の１例

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Polycythemia vera is an insidious disease of unknown cause, characterized by elevation of the total red cell mass. Hemorrhages occur in about one-third of this disease. A case of 54 year old male was reffered to our clinic complaining of abnormal bleeding after gingival incision.In his history, he lacked any apparent bleeding tendency except suspected thrombotic tendency on his left plantar which had occurred two years before. The chief clinical findings of this patient were the abnormal bleeding from gingival wound, reddish blue discoloration of face and arms, body itching and headache. Hematological examination showed remarkably elevated red cell count, hemoglobin levels, white cell count and platelet count. He was admitted to the 1st Department of Internal Medicine, Kyushu University, and is now doing well about two years after the treatment.