三维超声产前诊断巨大胎儿颈部畸胎瘤：一例报告
Prenatal diagnosis of a large fetal cervical teratoma by three-dimensional ultrasonography: a case report.
作者信息
Araujo Júnior Edward, Guimarães Filho Hélio A, Saito Mauricio, Pires Alexandra B, Pontes Ana Letícia S, Nardozza Luciano M M, Moron Antonio Fernandes
机构信息
Department of Obstetrics, Sao Paulo's Federal University (Unifesp/EPM), Napoleão de Barros Street, 871 Vila Clementino, 04024-002 São Paulo, Brazil.
出版信息
Arch Gynecol Obstet. 2007 Feb;275(2):141-4. doi: 10.1007/s00404-006-0180-9. Epub 2006 Jun 13.
CONTEXT
The cervical teratomas are rare, benign tumors, they are formed by the three embryonic layers, and they represent only 6% of teratomas. The prognosis depends mainly on the size and location of the lesion, on the tumor growth rate, and on the level of tracheal compression. Prenatal diagnosis is usually reached with the aid of a two-dimensional ultrasonography (2DUS) after the 15th week of gestation, which shows a large heterogeneous mass in the cervical region, plus a polyhydramnios, on the Doppler mode which also shows the vascularization of the tumor.
CASE REPORT
We report a case of cervical teratoma diagnosed on the 31st week of gestation with the aid of a 2DUS and color Doppler mode. We focus on the main findings obtained with the three-dimensional ultrasonography in surface mode, and we highlight the importance of this methodology for the indirect evaluation of the neonatal prognosis.
背景
颈部畸胎瘤是罕见的良性肿瘤，由三个胚胎层形成，仅占畸胎瘤的6%。预后主要取决于病变的大小和位置、肿瘤生长速度以及气管受压程度。妊娠15周后通常借助二维超声检查（2DUS）进行产前诊断，其显示颈部区域有一个大的异质性肿块，伴有羊水过多，在多普勒模式下还显示肿瘤的血管化。
病例报告
我们报告一例在妊娠31周时借助2DUS和彩色多普勒模式诊断出的颈部畸胎瘤病例。我们重点关注表面模式下三维超声检查获得的主要发现，并强调该方法对间接评估新生儿预后的重要性。
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