Verrucous porokeratosis (porokeratosis ptychotropica) with dermal amyloid deposits

We report the case of a 43-year-old man with numerous pruritic verrucous papules and plaques on buttocks, natal cleft, penis, and scrotum for decades. He had already been diagnosed as having psoriasis or condyloma in different clinics, and received various topical medications and liquid nitrogen cry...

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Bibliographic Details
Main Authors: Yen-Fen Yu (Author), Yu-Hung Wu (Author)
Format: Book
Published: Wolters Kluwer Medknow Publications, 2013-09-01T00:00:00Z.
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042 |a dc 
100 1 0 |a Yen-Fen Yu  |e author 
700 1 0 |a Yu-Hung Wu  |e author 
245 0 0 |a Verrucous porokeratosis (porokeratosis ptychotropica) with dermal amyloid deposits 
260 |b Wolters Kluwer Medknow Publications,   |c 2013-09-01T00:00:00Z. 
500 |a 1027-8117 
500 |a 10.1016/j.dsi.2012.11.004 
520 |a We report the case of a 43-year-old man with numerous pruritic verrucous papules and plaques on buttocks, natal cleft, penis, and scrotum for decades. He had already been diagnosed as having psoriasis or condyloma in different clinics, and received various topical medications and liquid nitrogen cryotherapy without improvement. On histopathology, there were several parakeratotic columns of cornoid lamella in the compact hyperkeratotic stratum corneum. The papillary dermis had amyloid deposition, which was positive for high molecular weight cytokeratin and congo red, indicating keratin-based amyloid. Interestingly, the cornoid lamella was negative for high molecular weight cytokeratin but showed weak positivity for cytokeratin 5/6. 
546 |a EN 
690 |a amyloid 
690 |a ptychotropica 
690 |a verrucous porokeratosis 
690 |a Dermatology 
690 |a RL1-803 
655 7 |a article  |2 local 
786 0 |n Dermatologica Sinica, Vol 31, Iss 3, Pp 145-148 (2013) 
787 0 |n http://www.sciencedirect.com/science/article/pii/S102781171200105X 
787 0 |n https://doaj.org/toc/1027-8117 
856 4 1 |u https://doaj.org/article/75a5dba5adb946098466374bc4d04f21  |z Connect to this object online.