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。依超声表现可提示为A、胃窦幽门部痉挛
B、胃窦幽门部肿瘤
C、急性胃扩张
D、先天性肥厚性幽门狭窄
E、以上都不是
该病超声诊断依据是A、幽门管肌层厚度≥3mm,管长≥10mm,直径≥12mm
B、幽门管肌层厚度≥3mm,管长≥16mm,直径≥12mm
C、幽门管肌层厚度≥4mm,管长≥18mm,直径≥13mm
D、幽门管肌层厚度≥4mm,管长≥20mm,直径≥14mm
E、幽门管肌层厚度≥5mm,管长≥25mm,直径≥15mm