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英文誌(2004-)

Journal of Medical Ultrasonics

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1980 - Vol.7

Vol.7 No.03

Original Article(原著)

(0211 - 0218)

頸管胎盤の超音波断層診断

Diagnosis of Cervical Placenta by Ultrasonic Tomogram

片桐 信之, 佐藤 真一, 塩島 令儀

Nobuyuki KATAGIRI, Shin-ichi SATO, Yoshinori SHIOJIMA

横浜市立大学医学部産婦人科学教室

Department of Obstetrics and Gynecology, Yokohama City University School of Medicine

キーワード : cervical placenta, cervical pregnancy, cervical abortion, cervical echogram, vesical echogram

Despite the fact that ultrasonotomography has progressed and become widespread, there are few reports of cervical pregnancy because of its rare occurrence. In previous reports, the diagnosis of cervical placenta was not even considerd in early stage of pregnancy and the criteria to provide adequate support for such a diagnosis were not available. As the diagnosis of cervical placenta depends largely on histological findings, it may be impossible to make an adequate diagnosis before hysterectomy.
We made an ultrasonotomographic recording and continued to make detailed periodic observations.
We found the characteristic pictures of a cervical placenta during the ear一y and middle stages of pregnancy. As a result, the following information is given.
Information on the bladder :
(1) A straight line of extension at the vesical fundus and shortening of the vesical apex.
(2) The site of the bladder reflection is raised.
Information on the uterus :
(1) Straight extension and enlargement of the cervical canal.
(2) Disappearance of the portio vaginalis and enlargement of the vaginal fornix.
(3) A long-oval shaped GS.