| 单词 | Tumors,Carcinoid |
| 释义 | Tumors,Carcinoid《英文msh词典》Tumors,Carcinoid [入口词] Tumors,Carcinoid [主题词] Carcinoid Tumor [英文释义] A usually small,slow-growing neoplasm composed of islands of rounded,oxyphilic,or spindle-shaped cells of medium size,with moderately small vesicular nuclei,and covered by intact mucosa with a yellow cut surface. The tumor can occur anywhere in the gastrointestinal tract (and in the lungs and other sites); approximately 90% arise in the appendix. It is now established that these tumors are of neuroendocrine origin and derive from a primitive stem cell. (From Stedman,25th ed & Holland et al.,Cancer Medicine,3d ed,p1182) |
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