这个词是什么意思？
A distinct vascular lesion in the PYLORIC ANTRUM that is characterized by tortuous dilated blood vessels (ectasia) radiating outward from the PYLORUS. The vessel pattern resembles the stripes on the surface of a watermelon. This lesion causes both acute and chronic GASTROINTESTINAL HEMORRHAGE.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D020252 · MeSH 2026。
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