[Imaging of meningeal hemangiopericytomas].
OBJECTIVE
To study the imaging findings of meningeal hemangiopericytomas.


METHODS
and method: Four cases of meningeal hemangiopericytomas are reported, two involving the spine and two intracranial in location.


RESULTS
An extra-axial and heterogeneous pedunculated mass, without calcification should suggested a diagnosis of hemangiopericytoma especially if a bone erosion is noted; meningioma is the main differential diagnosis.


CONCLUSIONS
CT scan as well as MR imaging are not specific but may provide findings consistent with a diagnosis of hemangiopericytoma. A long follow up of these patients is required because of frequent recurrences and delayed metastases.
Tayoro
K
K
Service de Neuroradiologie, CHU Bretonneau, 37044 Tours Cedex, France.
Cottier
Jp
J
Jan
M
M
Herbreteau
D
D
D000328:Adult; D006393:Hemangiopericytoma / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008577:Meningeal Neoplasms / Q000473:pathology*; D008875:Middle Aged
Imagerie des hémangiopéricytomes méningés.