Protoplasmic astrocytoma
Protoplasmic astrocytoma
Definition
A rare variant of diffuse astrocytoma. It is predominantly composed of neoplastic astrocytes showing a small cell body with few, flaccid processes with a low content of glial filaments and scant GFAP expression. This lesion is not well defined and is considered by some authors as an occasional histopathological feature rather than a reproducibly identifiable variant. When occurring in children, this neoplasm may be difficult to separate from pilocytic juvenile astrocytoma. (Adapted from WHO)
Also known as protoplasmic astrocytic tumour, protoplasmic astrocytoma, protoplasmic astrocytoma (morphologic abnormality) — per MONDO
Also identified as
Affected Organs
| Organ | Involvement | Source |
|---|---|---|
| Central nervous system | Disease Has Associated Anatomic Site | NCIT · CC BY 4.0 |
| Central nervous system | Disease Has Primary Anatomic Site | NCIT · CC BY 4.0 |
| Nervous system | Disease Has Associated Anatomic Site | NCIT · CC BY 4.0 |