ArticleRespirology case reports2026
A Case of Primary Pulmonary Meningioma With Slow Enlargement Over a 9-Year Period.
Article in Respirology case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- A Case of Primary Pulmonary Meningioma With Slow Enlargement Over a 9-Year Period.Respirology case reports · 2026Article
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Authors and funding
4 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Primary pulmonary meningioma (PPM) is an extremely rare benign tumour with a long-term natural history that remains elusive. A 69-year-old asymptomatic male who had never smoked presented with an 11-mm smooth nodule in the left lower lobe. Serial chest radiographs revealed slow, continuous growth over 9 years (from 2 to 11 mm; tumour doubling time [TDT]: 1.2 years). The patient underwent partial thoracoscopic resection. Histopathology indicated a whorled pattern of spindle cells with a low Ki-67 index (~1%), indicating a WHO grade 1 meningioma, despite atypical negativity for epithelial membrane antigen. Brain magnetic resonance imaging ruled out the presence of intracranial lesions. No postoperative recurrence was noted at 6 months postoperatively. This case highlights that Grade 1 PPM could lead to long-term progressive growth. The established WHO grading system might be correlated with the PPM growth rate, warranting further case accumulation.
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