無症状型無カタラーゼ血液症症例

　無カタラーゼ血液症は1947年高原滋夫教授により発見された封しい疾患であり，本疾患め症状として歯性進行性壊疽が見られると云われている。一方調は無症状型の無カタラーゼ血液症を報告し，私も慢性副鼻腔炎手術の際，偶々本疾患に遭遇したが，それ迄自他覚的に無症状であつたので報告する。

Takeuchi performs sinus operation on a body of age 13,who happened to be affected with a-catalse-blood dyscrasia but, recovered after the operation, uneventfuly without the complications of tissue necrosis which so often are met with.The term,a-catalase-blood dyscrasia,has been advanced in 1947 by Ta-kahara for a deficiency condition in the blood that causes progressive necrosis in the dental alveola.This condition may remain latent without production of symptoms appertaining thereto for any length of time or it may be activated at any time. Seven other siblings of the family to which the patient belonged were found as to be affected with similar bl-ood dyscrasia but,without symptoms.In the family history of the patient, it is found that blood relation-marriage had occurred in the predicessors four generations before.