Neuroendocrine Tumor Developing in the Rectal Mesentery: A Case Who Had Surgery Due to Appendiceal Neuroendocrine Tumor 13 Years Ago

Year 2024, Volume: 9 Issue: 3, 272 - 276

Kağan Gökçe , Demet Doğan , Murat Üner

https://doi.org/10.26453/otjhs.1420202

Abstract

In the gastrointestinal tract, Neuroendocrine Tumors (NETs) are most observed in the appendix. This study aims to present a 51-year-old male patient diagnosed with NET in rectal mesentery. In 2009, appendiceal NET was diagnosed after appendectomy. Then, a total mesocolonic right hemicolectomy was performed. In the examination conducted in June 2022, a mass lesion was detected on the right side of the pelvis, posterior to the seminal vesicle and anterolateral to the rectum, within the rectal mesentery. Diagnosis of NET was made with a transabdominal biopsy, and then an operation decision was made. The perioperative frozen section confirmed that the mass lesion was a NET with clean surgical margins. In patients with large tumor sizes or high-grade NET, postoperative treatment is continued with chemotherapy or chemoradiotherapy. The patient was administered chemotherapy after surgery and was followed up in the outpatient clinic.

Keywords

Appendix, neuroendocrine tumor, rectal mesentery

Project Number

OTHS-2190-3007-74

Rektum Mezenterinde Gelişen Nöroendokrin Tümör: 13 Yıl Önce Apendiks Nöroendokrin Tümörü Nedeniyle Ameliyat olan bir Olgu

Abstract

Gastrointestinal sistemde Nöroendokrin Tümörler (NET) en sık apendikste görülür. Bu çalışmanın amacı, 51 yaşında rektum mezenterinde NET tanısı koyulan erkek hastayı sunmaktır. 2009 yılında apendektomi sonrası apendiks NET tanısı koyulmuş. Ardından total mezokolonik sağ hemikolektomi uygulanmış. 2022 yılına kadar rutin takiplerinde patolojiye rastlanmayan hastanın 2022 Haziran ayında yapılan tetkiklerinde pelvisin sağ tarafında, seminal vezikülün posteriorunda ve rektumun anterolateralinde, rektum mezenteri içerisinde kitle lezyon tespit edildi. Yapılan transabdominal biyopside NET tanısı koyuldu ve operasyon kararı verildi. Periopreatif frozen section incelemede kitle lezyonun temiz cerrahi sınırlar ile rezeke edilmiş NET olduğu doğrulandı. Büyük tümör boyutuna sahip ya da yüksek dereceli NET'de ameliyat sonrası tedaviye kemoterapi veya kemoradyoterapi ile devam edilmektedir. Hastaya cerrahi sonrası kemoterapi tedavisi verildi ve poliklinik takibine alındı.

Keywords

Apendiks, nöroendokrin tümör, rektum mezenteri

Ethical Statement

Yazarlar arasında çıkar çatışması yoktur

Supporting Institution

Yok

Project Number

OTHS-2190-3007-74

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