経鼻中隔経蝶形骨洞下垂体腺腫手術における内側翼突板間の距離について
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概要
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The distances between the right and left medial pterygoid plates were measured in 32 normal subjects and 12 patients with pituitary adenoma from both X-ray films of Waters view and A-P tomograms, and compared with those of Americans reported by Lee. The results were as follows:1) The distances between the right and left medial pterygoid plates in normal subjects were about 3.21±0.18cm (mean±S.D.). They were wider than those of Americans.2) The distances in patients with acromegaly were not wider than those of normal subjects, however the measurements in patients with giantism were larger than those of normals.3) The measurements of operative field in the transseptal transsphenoidal procedure to the hypophysis were about 2.0cm in diameter. They were about 1.0cm narrower than those determined from the X-ray films.