Wednesday, January 11, 2012

Recurrent Meningeal Hemangiopericytoma, 50% resolution at 8 month follow up.

This 43 years old  gentleman from Gujranwala went through excision of posterior fossa tumor in 2008 along with a VP shunt . He presented with complain of headache, vertigo, and imbalance.

 On referral for Gamma Knife, MRI brain with contrast shows the recurrent multilobulated midline extra axial mass  occupying the supracerebellar cistern, encroaching into quadrigeminal cistern besides bulging into upper 4th ventricle.Mass was compressing upon adjacent faces of occipital lobes and superior vermis / adjacent cerebellum. He was treated with 14 Gy at 50% IDL for a Vol. of 27.8 cc. with multiple isocenters.


 Follow up at 8 months shows about 50% resolution. All his symptoms are improved.

After 8 months.

Meningeal Hemangiopericytoma is a rare and aggressive CNS tumor that exhibits a high incidence of local recurrence and distant metastasis.It arises from Zimmerman pericytes in the capillary wall.Till 2001 only 100 caes were reported.