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Radiology. 1987 Aug;164(2):375-80.

Leiomyomas in pregnancy: sonographic study.

Abstract

With ultrasound monitoring, analysis of the behavior of uterine leiomyomas (fibroids) and their impact on the course of pregnancy was undertaken in a group of 113 patients. Fibroid size changes were analyzed on the basis of trimesters. In the second trimester, smaller fibroids increased in size, whereas larger fibroids decreased in size. In the third trimester, a decrease in size was documented regardless of initial size. The most common patterns of echotexture were hypoechoic, heterogeneous, and echogenic rim. The development of a heterogeneous pattern or anechoic/cystic spaces on a follow-up study was accompanied in seven of ten patients by severe abdominal pain, compared with 12 cases of abdominal pain in 103 patients without such echotexture changes. Although the number of patients was small, the development of these patterns apparently indicates significant degeneration of the fibroid. Fibroids located in the lower uterine segment were accompanied by a higher frequency of cesarean section and retained placenta. Fibroids located in the uterine corpus were more frequently associated with early abortions. Multiple fibroids were accompanied by a higher frequency of malpresentation and premature contractions compared with cases with one or two fibroids.

[PubMed - indexed for MEDLINE]
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