Visceral Surgery Department, CHU Charleroi, Charleroi, Belgium.
Pathological Department, CHU Charleroi, Charleroi, Belgium.
Acta Chir Belg. 2022 Oct;122(5):373-376. doi: 10.1080/00015458.2021.1881331. Epub 2021 Feb 11.
Collision tumors are defined as the juxtaposition of two histologically distinct tumors, which form a single mass, without histological mixing of the two tissues. They are extremely rare, especially in the digestive tract.
An 81-year-old patient was admitted for anemia, diarrhea and palpable abdominal mass. The colonoscopy showed a substenosing tumor of the transverse colon. On abdominal CT, the colonic mass invaded the stomach. After surgical treatment with transverse colectomy and associated partial longitudinal gastrectomy, pathological results showed that it was a collision between a primary gastric adenocarcinoma and a primary colonic adenocarcinoma.
We report a first case of collision tumor between a primary gastric adenocarcinoma and a primary colonic adenocarcinoma. Current knowledge on the subject is extremely limited.
碰撞瘤定义为两个组织学上不同的肿瘤并列，形成单个肿块，没有两种组织的组织学混合。它们非常罕见，特别是在消化道中。
一名 81 岁的患者因贫血、腹泻和可触及的腹部肿块入院。结肠镜检查显示横结肠有一个狭窄的肿瘤。腹部 CT 显示结肠肿块侵犯胃。经横结肠切除术和相关的部分纵向胃切除术治疗后，病理结果显示为原发性胃腺癌和原发性结肠腺癌的碰撞。
我们报告了首例原发性胃腺癌和原发性结肠腺癌的碰撞瘤。目前对这一主题的了解极其有限。
