Intravascular papillary endothelial hyperplasia (IPEH) also known as Masson's tumor,
is a benign, slow growing, vascular lesion which is seen very rarely and only a few
cases have been reported intracranially in the literature. It has been reported at
many sites, but the posterior fossa involvement is very rare. The preoperative diagnosis
is very difficult, as there is no enough cases to achieve a clear understanding about
the details of its radiological findings. Differential diagnosis have to be made especially
from angiosarcoma and meningioma. It is curable by total surgical removal. In this
article we presented the characteristic clinical, radiological, perioperative and
pathological findings in a case of IPEH in an unusual location, origin and behavior.
To best of our knowledge, we presented the first case of IPEH originating from tentorium.
Key-words:
Dural attachment - extraaxial lesion - intravascular papillary endothelial hyperplasia
- posterior fossa tumor
