Endoscopic Observation of the Growth Process of a Right-Side Sessile Serrated Adenoma-Polyp with Cytological Dysplasia to an Invasive Submucosal AdenocarcinomaReportar como inadecuado




Endoscopic Observation of the Growth Process of a Right-Side Sessile Serrated Adenoma-Polyp with Cytological Dysplasia to an Invasive Submucosal Adenocarcinoma - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Case Reports in Gastrointestinal Medicine - Volume 2016 2016, Article ID 6576351, 5 pages -

Case Report

Department of Gastroenterology and Hepatology, Sato Daiichi Hospital, 77-1 Hokyoji, Usa, Oita 879-0454, Japan

Department of Pathology, Kitakyushu Medical Center, 2-1-1 Bashaku, Kitakyushu, Fukuoka 802-0077, Japan

Department of Pathology, Graduate School of Medicine, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Yufu, Oita 879-5593, Japan

Received 31 March 2016; Revised 9 June 2016; Accepted 12 June 2016

Academic Editor: Daniel C. Damin

Copyright © 2016 Kaoru Omori et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A sessile serrated adenoma-polyp SSA-P with cytological dysplasia in the right colon, which transformed to an invasive submucosal adenocarcinoma finally, was endoscopically observed in a 76-year-old woman. A whitish soft SSA-P approximately 25 mm in diameter was detected in the cecum. Biopsy samples were obtained from the small nodule, and the lesion was eventually diagnosed as an SSA-P with cytological dysplasia, considering endoscopic observations, among which the narrow-band imaging features suggested that the lesion was adenomatous, that is, a round-oval pattern, and hyperplastic, that is, comprising a circular pattern with dots and an invisible capillary vessel. After 11 months, an SSA-P had rapidly developed into a submucosal adenocarcinoma with lymphatic infiltrations, and the most aggressive deep invasion was observed in the central depression. This case suggests that right-side SSA-Ps with cytological dysplasia should be removed immediately, considering the potential for rapid progression to a larger size and eventually to deep and extensive cancer.





Autor: Kaoru Omori, Kanako Yoshida, Sadafumi Tamiya, Tsutomu Daa, and Masahiro Kan

Fuente: https://www.hindawi.com/



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