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Plaque-type porokeratosis ( also known as " Classic porokeratosis " and " Porokeratosis of Mibelli " ) is characterized by skin lesion s that start as small , brownish papule s that slowly enlarge to form irregular , annular , hyperkeratotic or verrucous plaques .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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