Wang Rui, Yan Zhaopeng
Department of Critical Care Medicine, Shengjing Hospital, China Medical University, Shenyang, China.
Department of General Surgery, Shengjing Hospital, China Medical University, Shenyang, China.
Front Oncol. 2019 Dec 10;9:1389. doi: 10.3389/fonc.2019.01389. eCollection 2019.
Rectal mucinous adenocarcinoma is a subtype of colorectal adenocarcinoma, which is more aggressive and prone to invade adjacent normal organs or tissues compared with non-mucinous adenocarcinoma. Retrorectal dermoid cyst is a rare congenital disease, which usually are benign but with a potential for malignant degeneration. In this article, we report a case which presented a rectal mucinous adenocarcinoma invading into retrorectal dermoid cysts, indicating that besides adjacent normal organs or tissues, malignancies can also invade adjacent tumors, making their diagnosis and management more complicated. In such cases, double primary tumors should be considered, and they should be removed surgically.
直肠黏液腺癌是结直肠癌的一种亚型，与非黏液腺癌相比，其侵袭性更强，更容易侵犯相邻的正常器官或组织。直肠后皮样囊肿是一种罕见的先天性疾病，通常为良性，但有恶变的可能。在本文中，我们报告了一例直肠黏液腺癌侵犯直肠后皮样囊肿的病例，表明除了相邻正常器官或组织外，恶性肿瘤也可侵犯相邻肿瘤，使其诊断和治疗更加复杂。在这种情况下，应考虑双原发肿瘤，并应手术切除。
