Dedushi Kreshnike, Kabashi Serbeze, Mucaj Sefedin, Ramadani Naser, Hoxhaj Astrit, Shatri Jeton, Hasbahta Gazmend
Faculty of Medicine, Pristine University, Pristine City, 10000, Kosovo.
Department of Radiology, Diagnostic Centre, UCCK, Pristine City, 10000, Kosovo.
World J Oncol. 2016 Aug;7(4):81-84. doi: 10.14740/wjon965w. Epub 2016 Sep 3.
Although rare, sacrococcygeal teratoma is the most common congenital neoplasm, occurring in 1 in 40,000 infants. Approximately 75% of affected infants are female. The aim of the present study was to correlate ultrasonography and magnetic resonance imaging (MRI) findings in patients with fetal sacrococcygeal teratoma. Three pregnant women in 27th week of gestation underwent fetal MRI after ultrasonography examination, with findings suggestive for fetal sacrococcygeal teratoma. Tumor size, location, extent and content were evaluated both by MRI and ultrasonography. Findings regarding tumor location, size and content were similar for both methods. There was a large well-circumscribed mixed, cystic/solid oval mass, originating from right sacro-gluteal region and projecting into the amniotic cavity, 132 × 110 × 76 mm in size. The mass had a heterogeneous appearance. The T1 high signal suggested fat component of the tumor, while T1 and T2 hypointense components suggested calcified/bony components. There was also T1 hypointense component consistent with cystic and fluid component. The imaging findings were characteristic for sacrococcygeal teratoma. There was not obvious lumbar or thoracic spinal involvement. There was no gross intrapelvic or abdominal extension, and even sacrum and coccyx appeared deformed. The amount of amniotic fluid was increased. MRI was superior to ultrasonography in the evaluation of the exact tumor extent, accurately demonstrating pelvic involvement in all of the three cases. Fetal MRI has shown to be a valuable adjunct to obstetric sonography in the evaluation of fetal sacrococcygeal teratoma, because of its higher accuracy in the determination of tumors extent and content, playing a significant role in the therapeutic planning and increasing the chances of cure for these fetuses.
虽然骶尾部畸胎瘤罕见，但却是最常见的先天性肿瘤，发病率为4万分之一。约75%的患病婴儿为女性。本研究旨在关联胎儿骶尾部畸胎瘤患者的超声和磁共振成像（MRI）表现。27孕周的3名孕妇在超声检查后接受了胎儿MRI检查，检查结果提示胎儿骶尾部畸胎瘤。通过MRI和超声评估肿瘤的大小、位置、范围及内容物。两种检查方法关于肿瘤位置、大小及内容物的结果相似。有一个边界清晰的巨大混合性囊实性椭圆形肿块，起源于右骶臀区域并突入羊膜腔，大小为132×110×76mm。肿块外观不均质。T1高信号提示肿瘤的脂肪成分，而T1和T2低信号成分提示钙化/骨质成分。还有与囊性和液体成分一致的T1低信号成分。影像学表现为骶尾部畸胎瘤的特征。无明显的腰椎或胸椎受累。无盆腔或腹腔内明显扩展，甚至骶骨和尾骨也未见变形。羊水增多。在评估肿瘤的确切范围方面，MRI优于超声，准确显示了所有3例病例的盆腔受累情况。胎儿MRI已被证明是产科超声在评估胎儿骶尾部畸胎瘤时的一项有价值的辅助检查，因为它在确定肿瘤范围和内容物方面具有更高的准确性，在治疗方案制定中发挥重要作用，并增加了这些胎儿的治愈机会。
