Case reports
Vol. 116: Issue 5 - October 2024
Primary pulmonary meningioma mimicking a carcinoid tumor in a middle-aged female
Abstract
A 46-year-old female complained of cough and dyspnea. A chest X-ray and CT scan showed a solitary subpleural pulmonary nodule in the left upper lobe. Surgical resection was performed. The frozen examination was presumptive of a benign/low grade lesion, likely a carcinoid. Definitive histology revealed uniformly sized eosinophilic cells arranged in solid nests, immunoreactive for epithelial membrane antigen and progesterone receptors. The diagnosis of grade 1 meningothelial meningioma was finally achieved. This case of a meningioma mimicking a carcinoid tumor highlights its rarity and warns diagnostic specialists of the potential for misdiagnosis and overtreatment.
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Copyright (c) 2024 Società Italiana di Anatomia Patologica e Citopatologia Diagnostica, Divisione Italiana della International Academy of Pathology
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