(来学网)患儿,出生后50天。呕吐、消瘦入院;右上腹可触及橄榄状肿物;B超示幽门肌增厚,厚4~5mm。胃腔高度扩张。
  1. 超声可提示为
    A.
    (来学网)胃窦幽门部痉挛
    B.
    (来学网)胃窦幽门部占位
    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)慢性胃扩张
  2. 诊断依据是
    A.
    (来学网)幽门管肌层厚度≥2mm,管长≥10mm,直径≥11mm
    B.
    (来学网)幽门管肌层厚度≥3mm,管长≥15mm,直径≥12mm
    C.
    (来学网)幽门管肌层厚度≥4mm,管长≥l8mm,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