599
Moreover , although the scale of the study is limited , there is a possibility that PET can detect an insidious lesion which is undetectable by computed tomogram ( CT ) or MRI analysis , and that the higher level of tau reflects the process of neuronal degeneration in ALD .
 Disease: insidious lesion; Disease: neuronal degeneration; Disease: ALD
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
Answer:
 Disease: insidious lesion; Disease: neuronal degeneration; Disease: ALD