Case Report
Copyright ©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. May 6, 2022; 10(13): 4196-4206
Published online May 6, 2022. doi: 10.12998/wjcc.v10.i13.4196
Primary pulmonary meningioma: A case report and review of the literature
Dan-Bin Zhang, Tao Chen
Dan-Bin Zhang, Tao Chen, Department of Radiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, Zhejiang Province, China
Author contributions: Zhang DB was responsible for collecting the medical history of the patient and drafting the paper; Chen T reviewed the literature and revised the manuscript; 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 accompanying images.
Conflict-of-interest statement: All authors declare no conflict of interest related to this study.
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: Tao Chen, Doctor, Department of Radiology, The First Affiliated Hospital, Zhejiang University School of Medicine, No. 79 Qingchun Road, Hangzhou 310003, Zhejiang Province, China. wmuchentao@zju.edu.cn
Received: September 14, 2021
Peer-review started: September 14, 2021
First decision: January 22, 2022
Revised: January 28, 2022
Accepted: March 14, 2022
Article in press: March 14, 2022
Published online: May 6, 2022
Abstract
BACKGROUND

Primary pulmonary meningioma (PPM) is a rare disease that is usually benign. The most common presentation of PPM is isolated pulmonary nodules or masses, so the disease can mimic any other lung tumor on imaging, especially lung cancer or metastasis.

CASE SUMMARY

A 47-year-old asymptomatic woman presented with a well-defined, lobulated pulmonary mass with calcification in the left lower lobe. The mass measured 69 mm × 57 mm × 61 mm and was found during a chest computed tomography (CT) performed for physical examination. Contrast-enhanced CT and positron emission tomography (PET)/CT revealed mild enhancement of the mass, with accumulation of 18-fluoro-2-deoxy-D-glucose (18F-FDG). Transbronchial biopsy suggested a provisional diagnosis of low-grade neuroendocrine tumor. Subsequent enhanced head magnetic resonance imaging revealed no positive lesions. An open cuff resection of the left lower lobe and wedge resection of the lingual segment were performed. Histopathological and immunohistochemical examination revealed that the mass was a PPM.

CONCLUSION

PPM should be considered in the differential diagnosis of isolated pulmonary masses found incidentally on CT and should be diagnosed based on a combination of radiological and histological features. Surgical resection is currently the main treatment strategy. No recurrence of benign PPMs has been reported after complete resection.

Keywords: Primary pulmonary meningioma, Contrast-enhanced computed tomography, Positron emission tomography, Case report

Core Tip: Primary pulmonary meningioma (PPM) is a rare tumour that usually presents as an asymptomatic solitary pulmonary mass. Limited knowledge of the disease can make diagnosis difficult. Here, we present the case of a 47-year-old woman with PPM.