Primary pulmonary meningioma

A primary pulmonary meningioma is a very rare from of an ectopic meningioma.

Clinical presenation

They are generally asymptomatic and incidentally discovered although rarely patients with symptoms have also been reported.

Pathology

Histologically, they comprise of whorls of spindle cells interspersed with abundant psammoma bodies, and typically positive for vimentin, and EMA (epithelial membrane antigen).

Radiographic features

CT

Typically seen as a solitary pulmonary nodule. May show homogenous or heterogeneous enhancement.

History and etymology

The first case was thought to have been described by Erlandson in 1981while the first report in the English literature was thought to be by Kemnitz and Heinrich in 1982.

Treatment and prognosis

These lesions are largely benign, but malignant lesions have been rarely reported. Many publications suggest resection in appropriate cases.

See also

• meningioma
• extracranial meningioma
• pulmonary meningothelial nodules
• diffuse pulmonary meningotheliomatosis

Siehe auch:

• Meningeom
• seltene Lungentumoren