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Published in: Indian Journal of Surgery 2/2022

25-11-2021 | Cancer Biomarker | Case Report

Retroperitoneal Bronchogenic Cyst Mimicking a Pancreatic Cystic Lesion with Extremely High Level of Intralesional Fluid CA-19.9 Antigen: Benign in Disguise

Authors: Jessé Clementino-Filho, Rodrigo Cañada Trofo Surjan, Eloy Taglieri, José Celso Ardengh

Published in: Indian Journal of Surgery | Special Issue 2/2022

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Abstract

Bronchogenic cysts are congenital benign tumors resulting from abnormal budding of the primitive foregut. Usually presented on the posterior mediastinum, its presence on the retroperitoneum is extremely rare. We present an asymptomatic lady patient with a retroperitoneal cystic lesion that was submitted to endoscopic ultrasound–guided biopsies and intracystic fluid aspiration with histology excluding malignance despite intracystic fluid biochemical analysis that disclosed extremely high carbohydrate antigen 19–9. Definite diagnosis of bronchogenic cyst was only possible after complete surgical resection of the lesion. Furthermore, we discuss the use of this antigen as a tumor marker in this situation and its relevance to the preoperative diagnosis of such lesions.
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Metadata
Title
Retroperitoneal Bronchogenic Cyst Mimicking a Pancreatic Cystic Lesion with Extremely High Level of Intralesional Fluid CA-19.9 Antigen: Benign in Disguise
Authors
Jessé Clementino-Filho
Rodrigo Cañada Trofo Surjan
Eloy Taglieri
José Celso Ardengh
Publication date
25-11-2021
Publisher
Springer India
Published in
Indian Journal of Surgery / Issue Special Issue 2/2022
Print ISSN: 0972-2068
Electronic ISSN: 0973-9793
DOI
https://doi.org/10.1007/s12262-021-03137-x

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