Pulmonary meningioma. Report of a case with electron microscopic and immunohistochemical findings.

A pulmonary meningioma was removed from a 55-year-old woman. She had no evidence of a cranial meningioma after a 3-year follow-up period. Results of immunohistochemical and electron microscopic studies of the tumor were similar to those for cranial meningiomas. The literature on this subject was reviewed and a possible origin for these tumors in the lung is discussed.