diffuse meningeal melanocytosis
A diffuse or multifocal proliferation of uniform nevoid polygonal cells in the leptomeninges. Cells may spread into the Virchow-Robin spaces without frank invasion of the brain. Diffuse melanocytosis carries a poor prognosis even in the absence of histologic malignancy. (WHO)
MONDO:0003222
central nervous system melanocytic neoplasm
is_a
diffuse melanocytosis
exact
diffuse melanocytosis (morphologic abnormality)
exact
diffuse melanosis
exact
meningeal melanocytosis
exact