Long-term epilepsy associated tumor
Long-term epilepsy associated tumors, abbreviated LEAT is an umbrella term for rare tumor entities in patients that do not match current WHO diagnostic criteria.
General
- Closely associated with Ganglioglioma and DNT.
Examples
- Papillary glioneuronal tumor
- Angiocentric glioma
- Isomorphic diffuse glioma
- Multinodular and vacuolating neuronal tumor of the cerebrum
- Polymorphous low grade tumor of the young
Criteria
- Seizures <18 years.
- Temporal lobe location.
- Mostly benign appearance (as in WHO grade I).