1632
In the context of cancer ( gemistocytic astrocytomas ) , gemistocytes are known to dedifferentiate to a high grade ( III or IV ) glioma ( i.e. glioblastoma multiforme ) at a rapid pace , usually indicative of a poor prognosis .
 cancer, glioma
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 cancer, glioma