117023
The legend states that the melon heads ' appearance is the result of them having resorted to cannibalism in order to survive the harsh winters of the region and to inbreeding , which in turn caused them to develop hydrocephalus .
 hydrocephalus
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:
 hydrocephalus