[Orbital hemangiopericytoma: a case with involvement of the intraconal space].
OBJECTIVE
We report a case of orbital hemangiopericytoma, in a 14 year-old boy. Neuroradiological findings, including those of computerized tomography (CT), magnetic resonance imaging (MRI), and ultrasonography are detailed.


CONCLUSIONS
Diagnostic imaging showed a well-circumscribed and solid mass with an intraconal location. The tumor was grossly purple, richly vascularized and encapsulated. The histological study revealed a hemangiopericytoma of borderline grade with hypercellularity and moderate number of mitotic figures. We emphasize the rarity of the orbital hemangiopericytoma specially when it is located within the muscle cone.
Cabrera Vargas
M E
ME
Servicio de Oftalmología, Hospital Materno Infantil, Las Palmas de Gran Canaria, España.
Pérez Alvarez
J
J
Díaz Arriaga
C
C
Marrero Saavedra
D
D
Pérez Silguero
D
D
Andújar Sánchez
M
M
D000293:Adolescent; D006393:Hemangiopericytoma / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D008297:Male; D009918:Orbital Neoplasms / Q000175:diagnosis* / Q000601:surgery