(来学网)出生后45天患儿,因呕吐、消瘦入院;右上腹可触及椭圆状肿物;超声显示:胃腔高度扩张,幽门肌增厚,厚4~5mm。
  1. 依超声表现可提示为
    A.
    (来学网)胃窦幽门部痉挛
    B.
    (来学网)胃窦幽门部肿瘤
    C.
    (来学网)急性胃扩张
    D.
    (来学网)先天性肥厚性幽门狭窄
    E.
    (来学网)以上都不是
  2. 该病超声诊断依据是
    A.
    (来学网)幽门管肌层厚度≥3mm,管长≥10mm,直径≥12mm
    B.
    (来学网)幽门管肌层厚度≥3mm,管长≥16mm,直径≥12mm
    C.
    (来学网)幽门管肌层厚度≥4mm,管长≥18mm,直径≥13mm
    D.
    (来学网)幽门管肌层厚度≥4mm,管长≥20mm,直径≥14mm
    E.
    (来学网)幽门管肌层厚度≥5mm,管长≥25mm,直径≥15mm
正确答案:
(1)D
(2)D
答案解析:
(2)先天性肥厚性幽门狭窄的超声诊断标准是:幽门管壁全周性、均匀性肌层增厚,厚度≥4mm,管长≥20mm,幽门横断面直径≥14mm;近幽门部蠕动消失,幽门管狭窄;胃潴留、胃蠕动亢进和逆蠕动。