Rypens F F, Avni E F, Abehsera M M, Donner C, Vermeylen D F, Struyven J L
Department of Radiology, University Clinics of Brussels, Hospital Erasme, Belgium.
Radiographics. 1995 Nov;15(6):1329-44; discussion 1344-5. doi: 10.1148/radiographics.15.6.8577960.
Areas of increased echogenicity in the fetal abdomen are defined as abnormally bright areas with an echogenicity similar to that of surrounding bones. Such areas are encountered in various normal and abnormal processes. When increased echogenicity is discovered in the fetal abdomen, a careful search should be made for a potential cause. The causes to be considered depend on the location of the areas of increased echogenicity, which can be classified as intestinal, peritoneal, hepatic, retroperitoneal, and parietal. In each case, vascular, ischemic, infectious, tumoral, metabolic, and chromosomal abnormalities should be included in the differential diagnosis before considering the finding a normal variant. Therefore, in utero detection of fetal abdominal areas of increased echogenicity requires a complete sonographic survey of the fetus and placenta along with close sonographic follow-up, evaluation of familial factors, and testing for possible associated cystic fibrosis, infection, or a chromosomal anomaly. The prognosis depends more on the underlying disease than on the extent of the increased echogenicity.
胎儿腹部回声增强区域被定义为回声亮度异常高的区域，其回声与周围骨骼相似。此类区域可见于各种正常和异常情况。当发现胎儿腹部回声增强时，应仔细查找潜在原因。需要考虑的病因取决于回声增强区域的位置，这些区域可分为肠道、腹膜、肝脏、腹膜后和壁层。在每种情况下，在考虑该发现为正常变异之前，鉴别诊断应包括血管、缺血、感染、肿瘤、代谢和染色体异常。因此，宫内检测到胎儿腹部回声增强区域需要对胎儿和胎盘进行完整的超声检查，并密切进行超声随访、评估家族因素以及检测是否可能存在相关的囊性纤维化、感染或染色体异常。预后更多地取决于潜在疾病，而非回声增强的程度。
