这个词是什么意思？
All tumors in the GASTROINTESTINAL TRACT arising from mesenchymal cells (MESODERM) except those of smooth muscle cells (LEIOMYOMA) or Schwann cells (SCHWANNOMA).
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D046152 · MeSH 2026。
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