Is Primary Pulmonary Meningioma a Giant Form of a Meningothelial-Like Nodule?A Case Report and Review of the Literature

Masago, Katsuhiro; Hosada, Waki; Sasaki, Eiichi; Murakami, Yoshiko; Sugano, Masato; Nagasaka, Tetsuo; Yamada, Mai; Yatabe, Yasushi

doi:10.1159/000342391

Cited by 27 publications

(27 citation statements)

References 27 publications

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“…It has been reported to originate from ectopic embryonic residual arachnoid or multifunctional mesenchymal cells . Some authors have suggested that PPM may originate from minute meningothelial‐like nodules in the lungs . This lesion has been listed in the World Health Organization histological classification of lung and pleural tumors since 1999; however, its precise origin remains unknown.…”

Section: Discussionmentioning

confidence: 99%

Primary pulmonary meningioma presenting as a micro solid nodule: A rare case report

Tian

Cui

2018

Thoracic Cancer

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An ectopic meningioma, such as a primary pulmonary meningioma (PPM), is a rare type of tumor that primarily originates outside of the central nervous system. A 65‐year‐old female patient underwent a thoracoscopic lung wedge resection of the right lower lobe for a micro solid nodule detected via computed tomography. The histologic result revealed a PPM. PPMs manifested with micro solid nodules are a very rare occurrence in clinical practice. Increased awareness of the clinical and pathological characteristics of this rare disease can assist thoracic surgical teams to apply adequate management.

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Section: Discussionmentioning

confidence: 99%

Primary pulmonary meningioma presenting as a micro solid nodule: A rare case report

Tian

Cui

2018

Thoracic Cancer

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“…Prognosis of such tumors, at least when they grow from meninges, is unfavorable with high rates of recurrence and metastases. 14,17,25 Although the PPM in the present case was focally rhabdoid-looking, it lacked other features, which could undoubtedly categorize this tumor as WHO grade III: in general tumor was well-differentiated, and mitotic activity was low. A recent study 26 analyzed the behavior and prognosis of 44 rhabdoid CNS meningiomas lacking other histological features of malignancy.…”

Section: Discussionmentioning

confidence: 65%

Primary Pulmonary Meningioma With Rhabdoid Features

et al. 2018

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Only 1% to 2% of meningiomas have primary extrameningeal location, which is mostly head and neck region. Primary pulmonary meningiomas (PPMs) are even more uncommon with up to 50 cases reported in the literature. Only 5 cases of PPM with confirmed or possible malignancy have been previously described. Three-grade classification of meningiomas with the accordingly growing risk of aggressive behavior of the tumor has been proposed by the World Health Organization. As it is based on correlations between morphological and clinical features of intracranial meningiomas, the analogous prediction of ectopic tumors prognosis remains questionable due to scarce number of cases. In this article, we present a rare case of PPM with rhabdoid features (World Health Organization grade III), which lacked other signs of malignancy. The patient is doing well for 2 years after the thoracoscopic wedge resection without evidence of the disease recurrence.

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“…[ 8 ] Previous reports of primary pulmonary meningioma with contrast-enhanced CT images showed various enhancement patterns, such as heterogeneous or nodular enhancement, [ 12 , 13 ] poor enhancement, [ 14 , 15 ] or homogeneous enhancement. [ 2 , 16 , 17 ]…”

Section: Discussionmentioning

confidence: 99%

Computed tomography findings of primary pulmonary meningioma

Hong

Jiang²,

Zhou³

et al. 2018

Medicine

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Rationale:Primary pulmonary meningiomas are extremely rare, and only a few cases have been reported in the medical literature. Imaging findings of primary pulmonary meningiomas have been reported even more rarely.Patient concerns:We present the case of a 54-year-old male patient with cough and sputum lasting for 20 years. This was a case of primary pulmonary meningioma with initial suspicion of a chest wall intercostal neurinoma.Diagnoses:A lung lesion was detected on chest computed tomography (CT) imaging 4 years ago. This case appeared as a solitary well-defined round nodule close to the left chest wall, with heterogeneous enhancement on CT, which inaccurately led to the suspicion of a chest wall intercostal neurinoma.Interventions:A thoracoscopic wedge resection was performed.Outcomes:The postoperative histological diagnosis was primary pulmonary meningioma. After 2 years of follow-up, the patient is still alive without evidence of metastasis or recurrence.Lessons:Increased awareness of the CT characteristics of this rare tumor may broaden the radiologist's knowledge base.

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Is Primary Pulmonary Meningioma a Giant Form of a Meningothelial-Like Nodule?A Case Report and Review of the Literature

Cited by 27 publications

References 27 publications

Primary pulmonary meningioma presenting as a micro solid nodule: A rare case report

Primary pulmonary meningioma presenting as a micro solid nodule: A rare case report

Primary Pulmonary Meningioma With Rhabdoid Features

Computed tomography findings of primary pulmonary meningioma

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