Close
The sections show a moderately hypercellular tumour. This consists of epithelioid and spindle cells which are heavily laden with globular brown pigment and show strong immunostaining for the melanocyte markers, melan-A.
Tumour cells show moderate nuclear pleomophism with vesicular nuclei containing conspicuous nucleoli.
Focal dural attachment is identified.
DIAGNOSIS: Melanocytic tumour with features favouring meningeal melanocytoma.