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- Kohei Nagata, Kazuto Tajiri, Seitarou Shimada, Takayuki Ando, Ayumu Hosokawa, Koshi Matsui, Joji Imura, and Toshiro Sugiyama.
- The Third Department of Internal Medicine, Toyama University Hospital, Japan.
- Intern. Med. 2017 Jan 1; 56 (3): 289-293.
AbstractRectal neuroendocrine tumor (NET) is a relatively rare tumor. NET is classified as G1, G2, or G3 according to the degree of mitosis or Ki-67 proliferation index, which reflect the malignant potential of the tumor, such as metastasis. Advanced cases with metastasis are indicated for chemotherapy treatment. However, the efficacy of chemotherapy is limited. Therefore, resection is considered, even in metastatic cases, if complete resection is possible. We herein report a case of small rectal NET discovered with hepatic metastasis classified as G1. The patient showed good progress with no recurrence after undergoing hepatectomy and endoscopic resection of rectal NET.
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