Open AccessA 15 YEAR OLD BOY WITH A POSTERIOR FOSSA TUMOR
Author(s) -
Chapman Erin M.,
Ranger Adrianna,
Lee Donald H.,
Hammond Robert R.
Publication year - 2009
Publication title -
brain pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.986
H-Index - 132
eISSN - 1750-3639
pISSN - 1015-6305
DOI - 10.1111/j.1750-3639.2009.00281.x
Subject(s) - posterior fossa , hydrocephalus , cerebral aqueduct , fourth ventricle , third ventricle , pleomorphic xanthoastrocytoma , lesion , medicine , pathology , anatomy , melanin , radiology , biology , astrocytoma , glioma , cancer research , genetics
A 15 year old male presented with hydrocephalus from a tectal mass obstructing the cerebral aqueduct and upper fourth ventricle. The solid-cystic partly enhancing mass proved to be a pigmented pleomorphic xanthoastrocytoma, the third such example reported. The lesion revealed typical features of a PXA with the unusual addition of intracytoplasmic melanin in select lesional cells. Melanin pigment production is uncommon in glial tumors and of uncertain significance. The present case is recurrence-free one year post-operatively.