pilocytic astrocytoma pilomyxoid astrocytoma https://www.malacards.org/card/pilomyxoid_astrocytoma Orphanet:251615 PMA NCIT:C40315 MEDGEN:276757 MONDO:0016692 UMLS:C1519086 An astrocytic tumor of uncertain relation to pilocytic astrocytoma. It occurs predominantly in infants and young children. It is characterized by a monomorphic architectural pattern, usually associated with the absence of Rosenthal fibers and eosinophilic granular bodies. The clinical course is usually aggressive. GARD:0020710 ICDO:9425/3 ONCOTREE:PMA DOID:4845 The superclass assertion of pilocytic astrocytoma is not supported by NCIT.