An endoscopic ultrasound showed that the tumor originated in the submucosal layer of the digestive wall.
内视镜超音波检查发现此肿瘤源自于胃肠道壁的黏膜下层。
SY immunoreactivity was abundant in the intermuscular plexus, longitudinal and circular muscle layers, and submucosal layer.
肌间神经丛、纵肌层、环肌层、黏膜肌层均可见大量SY免疫反应阳性产物。
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