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奥曲肽是生长抑素的同类物，与在胃肠胰（GEP）内分泌肿瘤所表达的生长抑素受体亚型2（SST2）有亲和性，应用111In-奥曲肽可以检出原发性和转移性GEP内分泌肿瘤。作者曾用此法检查了11例病例。第1例有异位ACTH生成引起的柯兴综合征，未显示原发病灶，但见转移淋巴结3cm，水中找
Octreotide is a congener of somatostatin and has an affinity for somatostatin receptor subtype 2 (SST2) expressed in endocrine tumors of the gastrointestinal pancreatic (GEP). 111In-octreotide can detect primary and metastases. GEP endocrine tumors. The author used this method to examine 11 cases. In the first case, there was Cushing’s syndrome caused by ectopic ACTH production. The primary lesion was not shown, but 3 cm metastatic lymph nodes were found.