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Migraine ( 20 % ) was not an uncommon cause of cranial neuropathy although malignancies arising from the reticuloendothelial system or related structures of the head and neck were more frequent ( 26 % ) .
 Migraine, cranial neuropathy, malignancies
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Migraine, cranial neuropathy, malignancies