Twenty-Six-Year-Old Primigravid Woman With a Cystic Mass

[摘要] A 26-year-old primigravid woman underwent routine ultrasound examination at 22 weeks of gestation. An anechoic cystic structure measuring 15 mm was seen between the left kidney and spleen (Figure 1A, left and right). The kidneys appeared normal and measured 23 mm bilaterally. The amniotic fluid volume was normal. No structural abnormalities were detected and there was a 3-vessel cord. At 28 weeks, the mass had increased in size to 24 mm and was developing some solid components. By 35 weeks, the mass was echogenic and heterogeneous and had increased to 37 mm × 34 mm × 30 mm (Figure 1B).

[学科分类] 基础医学