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

Abstract

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.

Diagnostic and Management Considerations in a Patient With Primary Pulmonary Meningioma With Associated Micro-Solid Nodules

“…While a few malignant cases have been documented as relapsing despite receiving treatment [10], most nodules are benign, well-circumscribed, and solitary; consequently, surgical intervention through wedge resection or lobectomy are the main treatment modalities. Sub-centimeter micronodules have also been diagnosed as PPM [12]; however, they are surgically difficult to resect.…”

Multiple primary pulmonary meningioma: A case report and literature review

“…Meningiomas are relatively common tumors of the central nervous system. The incidence of an ectopic meningioma is 1%–2% of meningiomas, and the lungs are an uncommon site 1 . Primary pulmonary meningiomas (PPM) often occur in middle‐aged or older individuals, with a slight predominance in women.…”

“…The incidence of an ectopic meningioma is 1%-2% of meningiomas, and the lungs are an uncommon site. 1 Primary pulmonary meningiomas (PPM) often occur in middle-aged or older individuals, with a slight predominance in women. Weiss et al reported the first case of PPM, identifying it as a rare, slow-growing tumor.…”

Coexistence of primary pulmonary meningioma and metastatic papillary renal cell carcinoma of the lung: A rare case report with review of the literature

“…However, malignant PPM may develop distant metastasis or postoperative recurrence. [20] Currently, PPM is thought to have 2 histological origins, such as subpleural multipotential stromal cells and ectopic arachnoid cells. [5] Many pathological differential diagnoses need to be considered for PPM, including sarcomatoid mesothelioma, spindle cell thymoma, spindle cell carcinoma, solitary fibrous tumor, inflammatory myofibroblastic tumor, epithelioid hemangioendothelioma, synovial sarcoma, as well as metastatic tumor.…”