Catalog

Fibrillary astrocytoma of brain

No MMS code

Link to WHO Definition

Fibrillary astrocytoma of brain – http://id.who.int/icd/entity/659518828

The most frequent histological variant of diffuse astrocytoma. It is predominantly composed of fibrillary neoplastic astrocytes. Nuclear atypia is a diagnostic criterion but mitotic activity, necrosis and microvascular proliferation are absent. The occasional or regional occurrence of gemistocytic neoplastic cells is compatible with the diagnosis of fibrillary astrocytoma. (WHO)