原发部位不明的转移性神经内分泌瘤伴直肠腺癌1例
作者: |
1朱庆,
2高宠,
1卜雯婧,
1张红凯
1 首都医科大学附属北京中医医院病理科,北京 100010 2 首都医科大学附属北京中医医院血液科,北京 100010 |
通讯: |
张红凯
Email: zhk0484@sina.com |
DOI: | 10.3978/j.issn.2095-6959.2022.11.039 |
摘要
A case of metastatic neuroendocrine tumor of unknown primary site with rectal adenocarcinoma
CorrespondingAuthor: ZHANG Hongkai Email: zhk0484@sina.com
DOI: 10.3978/j.issn.2095-6959.2022.11.039
Abstract
Neuroendocrine neoplasm (NEN) with colorectal adenocarcinoma is rare and represents a challenge for clinicopathological diagnosis and management of patients. We reported a 58-year-old male patient with hematochezia. Clinical and adjuvant examination suggested rectal cancer with liver metastasis. He underwent rectal tumor resection after neoadjuvant chemotherapy. The final pathology diagnosis was moderately differentiated adenocarcinoma of the rectum with a metastatic neuroendocrine tumor (NET) of unknown primary site G1, with adenocarcinoma and NET metastasis in lymph nodes. Clinicopathological analysis reveals such cases are considered to be easily missed and require a more thorough evaluation of the involved organs, whose treatment and prognosis are usually determined by more aggressive tumors.