Case Report
Copyright ©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Jul 6, 2022; 10(19): 6679-6687
Published online Jul 6, 2022. doi: 10.12998/wjcc.v10.i19.6679
Retroperitoneal tumor finally diagnosed as a bronchogenic cyst: A case report and review of literature
Yang-Yang Gong, Xin Qian, Bo Liang, Ming-Dong Jiang, Jun Liu, Xing Tao, Jing Luo, Hong-Jian Liu, You-Gang Feng
Yang-Yang Gong, Xin Qian, Xing Tao, You-Gang Feng, Faculty of Medicine, Zunyi Medical University, Zunyi 563000, Guizhou Province, China
Yang-Yang Gong, Xin Qian, Bo Liang, Ming-Dong Jiang, Jun Liu, Jing Luo, Hong-Jian Liu, You-Gang Feng, Department of Urology, Suining Central Hospital, Suining 629000, Sichuan Province, China
Author contributions: Gong YY collected the case data, obtained the clinical data, drafted and revised the manuscript, and was a major contributor in writing the manuscript; Qian X acquired all the published articles from the literature database and performed the data extraction; Jiang MD and Liu HJ analyzed the clinical data; Liang B and Liu J was responsible for revising and editing of the manuscript for important intellectual content; Tao X and Luo J edited the figures and tables; Feng YG advised on all stages of the study; all authors read and approved the final manuscript.
Informed consent statement: Written informed consent was obtained from the patient for the publication of this case report and the accompanying images.
Conflict-of-interest statement: The authors declare that they have no competing interests.
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:
Corresponding author: You-Gang Feng, MD, Chief Doctor, Professor, Surgeon, Faculty of Medicine, Zunyi Medical University, No. 201 Dalian Road, Huichuan District, Zunyi 563000, Guizhou Province, China.
Received: January 5, 2022
Peer-review started: January 5, 2022
First decision: January 18, 2022
Revised: February 10, 2022
Accepted: May 8, 2022
Article in press: May 8, 2022
Published online: July 6, 2022

Retroperitoneal bronchogenic cyst (RBC) is an extremely rare developmental abnormality. Most are benign tumors but malignant transformation is possible. Because of their anatomical position, RBCs are easily misdiagnosed as adrenal or pancreatic solid tumors on radiological evaluation. Here, we report a case of RBC, review the literature, and summarize some important features.


A 49-year-old woman was incidentally found to have a retroperitoneal tumor during a physical examination. Enhanced computed tomography and laboratory evaluations, including routine blood examination, blood biochemistry, 24-h urine 17 ketones, 17 hydroxyls, adrenocortical hormone, serum potassium concentration, serum amylase, lipase, and epithelial tumor markers, revealed a moderate density, 54 mm × 40 mm mass with a clear boundary near the left adrenal gland. The were no abnormalities in the blood and urine values. Because the patient had a history of hypertension and the location of the mass was adjacent to the adrenal gland, it was initially diagnosed as a left adrenal tumor and was resected by retroperitoneal laparoscopy. However, the pathological examination after surgery confirmed it to be a bronchogenic cyst.


Retroperitoneal laparoscopic surgery can be prioritized for symptomatic RBC patients. Conservative treatment is feasible for selected patients.

Keywords: Adrenal gland neoplasm, Bronchogenic cyst, Retroperitoneal, Subdiaphragmatic, Pancreatic cyst, Case report

Core Tip: Retroperitoneal bronchogenic cyst (RBC) is a very rare congenital abnormality. It is usually a benign lesion but may become malignant. It primarily occurs at 20-60 years of age, with no sex difference. Most RBCs occur on the left side of the abdomen. Imaging is often nonspecific, and the diagnosis is usually confirmed by histopathology. Magnetic resonance imaging is more useful than computed tomography, endocrinological evaluation is necessary, and retroperitoneal laparoscopic surgery is a priority for patients with symptoms. Conservative treatment is effective in selected patients, but malignant transformation, infection, and bleeding must first be ruled out.