鼻副鼻腔におけるOssifying Fibromaに対する我々の見解
1967 年 10 巻 1 号 p. 15-32,2
詳細
1967 年 10 巻 1 号 p. 15-32,2
Being interested in the intranasal and paranasal benign tumors, authors accumulated 108 ossifying fibromas in Japan and these cases were investigated from clinical and histopathological aspects.
Clinically, their sex, age, location, chief complaint, cause, period prior to the consultation and the gross finding of the tumors were studied.
Histopathologically, ossifying mechanism was studied.
The tumors were classified into the differentiated and undifferentiated forms according to the interstitial findings.
From these studies, ossifying fibromas were divided into 7 groups.
Most of the tumors were known to occur in the maxillary sinus. And majority of the tumors arising from the maxillary sinus were of the differentiated forms. Like previously believed, prognosis of such tumors were benign.
Contrary to these, the tumors originated in ethmoid and frontal sinuses were often of the undifferentiated forms with destructive propensity of the skull base.
Furthermore, these tumors from emthoid or frontal sinus occasionally invaded intracranially leading to grove clinical course.
Interestingly enough, the undifferentiated form often recurred and its prognosis was not always benign.
The tumors should be ca refully differentiated from sarcomas in diagnosis.
