Case Report
Copyright ©The Author(s) 2023. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Sep 7, 2023; 29(33): 5014-5019
Published online Sep 7, 2023. doi: 10.3748/wjg.v29.i33.5014
Carcinoid syndrome caused by a pulmonary carcinoid mimics intestinal manifestations of ulcerative colitis: A case report
Carmen Mota Reyes, Henriette Klein, Fabian Stögbauer, Henrik Einwächter, Melanie Boxberg, Moritz Schirren, Seyer Safi, Hans Hoffmann
Carmen Mota Reyes, Department of Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich 81675, Germany
Henriette Klein, Moritz Schirren, Seyer Safi, Hans Hoffmann, Division of Thoracic Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich 81675, Germany
Fabian Stögbauer, Melanie Boxberg, Institute of Pathology, Technical University of Munich, Munich 81675, Germany
Henrik Einwächter, Department of Internal Medicine II, Technical University of Munich, Munich 81675, Germany
Author contributions: Mota-Reyes C and Hoffmann H designed the study; all co-authors analyzed the data and wrote the manuscript.
Informed consent statement: Informed written consent was obtained from the patients for the publication of this report and any accompanying images.
Conflict-of-interest statement: The authors declare that they have no conflict of interest to disclose.
CARE Checklist (2016) statement: The authors have read the CARE Checklist (2016), and the manuscript was prepared and revised according to the CARE Checklist (2016).
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Seyer Safi, MD, PhD, Surgeon, Division of Thoracic Surgery and Bavarian Cancer Research Center (BZKF), Klinikum rechts der Isar, Technical University of Munich, 22 Ismaningerstrasse, Munich 81675, Germany. seyer.safi@mri.tum.de
Received: May 13, 2023
Peer-review started: May 13, 2023
First decision: May 30, 2023
Revised: July 3, 2023
Accepted: July 17, 2023
Article in press: July 17, 2023
Published online: September 7, 2023
Processing time: 110 Days and 22.6 Hours
Core Tip

Core Tip: Pulmonary carcinoids are rare neuroendocrine tumors that may cause a paraneoplastic syndrome. We report the case of a 48-year-old man with a history of recurrent pneumonitis and therapy-refractory ulcerative colitis that was completely resolved after resection of a pulmonary carcinoid. Pulmonary carcinoid should be considered in the differential diagnosis of patients with unresponsive inflammatory bowel disease and recurrent pneumonia.