Ultrasonographic analysis of mass-type cornual pregnancy
10.3877/cma.j.issn.1672-6448.2014.09.013
- VernacularTitle:包块型子宫角妊娠超声诊断分析
- Author:
Na, SU
;
Qing, DAI
;
Yuxin, JIANG
;
Zhenhong, QI
;
Meng, YANG
;
Yao, WEI
- Publication Type:Journal Article
- Keywords:
Ultrasonography;
Uterus;
Pregnancy,ectopic;
Gestational trophoblastic neoplasms
- From:
Chinese Journal of Medical Ultrasound (Electronic Edition)
2014;(9):749-754
- CountryChina
- Language:Chinese
-
Abstract:
Objective To summarize the sonographic features and differential diagnosis points of mass-type cornual pregnancy. Methods The sonographic ifndings of 23 pathological proven mass-type cornual pregnancy cases enrolled in PUMCH from 2011 January to 2013 January were retrospectively analyzed. Results All pathological proven mass-type cornual pregnancy were located at one corner of the uterus presenting as a heterogenous outward mass. Well-deifned margins were found in 20 cases, and interstitial-line signs were found in 15 cases. The surrounding muscle thickness is 0.1-0.3 cm. Typical hyperechoic villi were found on sonography in cases with bloodβ-hCG>20 000 IU/L. On Doppler, the lesion showed abundant peripheral vascularity with low resistance in 22 cases, 9 lesions also showed abundant internal vascularity. Among 23 mass-type cornual pregnancy cases, 7 cases were misdiagnosed as gestational trophoblastic neoplasia (GTN) due to the similar sonographic characteristics including mixed-echo and abundant vascularity with low resistance. Sixteen cases were diagnosed by ultrasound preoperatively, with featured sonographic signs including mass located in the endometrial extension line;clear margin;peripheral vascularity;or detection of interstitial-line sign and typical villus. Conclusions Mass-type cornual pregnancy may be correctly diagnosed according to the location, boundary of the mass and the distribution of blood flow combining with clinical manifestation and bloodβ-hCG level. Transvaginal sonography could play an important role in diagnosis of cornual pregnancy.
