Minute pulmonary meningothelial-like nodule that was difficult to differentiate from lung adenocarcinoma due to specific computed tomography findings changes: A case report

Takuya Ohashi; Mitsumasa Kawago; Hideto Iguchi; Masahiro Sakaguchi; Kanako Sagan; Fumiyoshi Kojima; Yoshiharu Nishimura

doi:10.1002/rcr2.1263

Minute pulmonary meningothelial-like nodule that was difficult to differentiate from lung adenocarcinoma due to specific computed tomography findings changes: A case report

Respirol Case Rep. 2023 Nov 30;12(1):e01263. doi: 10.1002/rcr2.1263. eCollection 2024 Jan.

Authors

Takuya Ohashi^{1

2}, Mitsumasa Kawago¹, Hideto Iguchi², Masahiro Sakaguchi¹, Kanako Sagan³, Fumiyoshi Kojima³, Yoshiharu Nishimura²

Affiliations

¹ Department of Thoracic Surgery Hashimoto Municipal Hospital Wakayama Japan.
² Department of Thoracic and Cardiovascular Surgery Wakayama Medical University Wakayama Japan.
³ Department of Human Pathology Wakayama Medical University Wakayama Japan.

Abstract

Minute pulmonary meningothelial-like nodules (MPMNs) are benign lesions characterized by the appearance of ground-glass nodules (GGN) on computed tomography (CT). In the present case, an MPMN gradually developed into a substantial component during chest CT follow-up, and the GGN gradually transformed into a part-solid nodule. The imaging course described in this case is quite unique. Such CT images are characteristic of malignant tumours, especially, highly differentiated adenocarcinomas, which are difficult to differentiate preoperatively. Therefore, it is important to report this case.

Keywords: MPMN; adenocarcinoma; case report; computed tomography; ground‐glass nodules.

Publication types

Case Reports