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KMID : 0363220090470010101
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Korean Journal of Dermatology
2009 Volume.47 No. 1 p.101 ~ p.103
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A Case of the Giant and Hyperkeratotic Variant of Porokeratosis
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Won Jong-Hoon
Lee Min-Jung
Park Joon-Soo
Chung Hyun
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Abstract
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We report here on a case of the giant and hyperkeratotic variant of porokeratosis. A 51-year-old man presented with
a 30×20 cm sized extremely hyperkeratotic brownish verrucous plaque on his buttock. Histologic examination
showed an increased number and size of the cornoid lamella, which displayed packed parakeratotic cells and the
partial loss of the underlying granular layer. We diagnosed the patient with the giant and hyperkeratotic variant of
porokeratosis on the basis of the clinical features and the characteristic histologic findings. Giant porokeratosis is a
rare clinical condition among the several subtypes of porokeratosis, and the hyperkeratotic variant is an extremely
rare clinical condition.
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KEYWORD
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Giant porokeratosis, Hyperkeratotic variant
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