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SKINDIA QUIZ
Year : 2018  |  Volume : 9  |  Issue : 5  |  Page : 356-358  

SkinIndia Quiz 47: Linear pitted plaque over the foot


1 Department of Dermatology and Venereology, All India Institute of Medical Sciences, New Delhi, India
2 Department of Pathology, All India Institute of Medical Sciences, New Delhi, India

Date of Web Publication4-Sep-2018

Correspondence Address:
Neetu Bhari
Department of Dermatology and Venereology, All India Institute of Medical Sciences, New Delhi
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/idoj.IDOJ_207_17

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How to cite this article:
Singh S, Patra S, Arava S, Bhari N. SkinIndia Quiz 47: Linear pitted plaque over the foot. Indian Dermatol Online J 2018;9:356-8

How to cite this URL:
Singh S, Patra S, Arava S, Bhari N. SkinIndia Quiz 47: Linear pitted plaque over the foot. Indian Dermatol Online J [serial online] 2018 [cited 2019 Nov 13];9:356-8. Available from: http://www.idoj.in/text.asp?2018/9/5/356/235745



A 22-year-old female presented with a 10-year history of a gradually progressive, mildly pruritic, ill-defined linear plaque of size 7-cm over the medial surface of the right foot. The plaque had multiple well-defined pits with elevated keratotic margins of size 1–2 mm over the surface [Figure 1]. A skin biopsy from the margin of the pit showed epidermal invaginations containing parakeratotic plugs with thinned-out to absent granular layer with few dyskeratotic epidermal cells. There were multiple eccrine units in upper dermis underneath this. Moderately dense infiltrate of lymphocytes and histiocytes was focally present at the dermoepidermal junction without any interface change [Figure 2] and [Figure 3].
Figure 1: Linearly arranged plaque with multiple well-defined pits having elevated keratotic margins over the right foot

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Figure 2: Epidermal invaginations containing parakeratotic plugs with thinned-out to absent granular layer. Multiple eccrine units are seen in upper dermis with focal moderately dense infiltrate of lymphocytes and histiocytes at the dermoepidermal junction (H and E, ×100)

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Figure 3: A parakeratotic plug invaginating the underlying epidermis with thinned-out granular layer and few dyskeratotic cells (H and E, ×400)

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   Question Top


What is the Diagnosis?



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   References Top

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Easton JA, Donnelly S, Kamps MA, Steijlen PM, Martin PE, Tadini G, et al. Porokeratotic eccrine nevus may be caused by somatic connexin26 mutations. J Invest Dermatol 2012;132:2184-91.  Back to cited text no. 1
    
2.
Bandyopadhyay D, Saha A, Das D, Das A. Porokeratotic eccrine ostial and dermal duct nevus. Indian Dermatol Online J 2015;6:117-9.  Back to cited text no. 2
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3.
Masferrer E, Vicente MA, Bassas-Vila J, Rovira C, González-Enseñat MA. Porokeratotic eccrine ostial and dermal duct naevus: Report of 10 cases. J Eur Acad Dermatol Venereol 2010;24:847-51.  Back to cited text no. 3
    
4.
Hartman R, Rizzo C, Patel R, Kamino H, Shupack JL. Porokeratosis palmaris et plantaris disseminata or a disseminated late-onset variant of porokeratotic eccrine ostial and dermal ductal nevus (PEODDN) with follicular involvement. Dermatol Online J 2009;15:8.  Back to cited text no. 4
    
5.
Aloi FG, Pippione M. Porokeratotic Eccrine Ostial and Dermal Duct Nevus. Arch Dermatol 1986;122:892-5.  Back to cited text no. 5
    
6.
Mazuecos J, Ortega M, Ríos JJ, Camacho F. Long-term involution of unilateral porokeratotic eccrine ostial and dermal duct naevus. Acta Derm Venereol 2003;83:147-9.  Back to cited text no. 6
    
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Fang X, Li H, Yi L, Xu J, Wang X, Zhang Y, et al. Metastatic squamous cell carcinoma arising from a serious widespread porokeratotic eccrine ostial and dermal duct nevus: Case report and literature review. Dermatol Sin 2017;35:92-5.  Back to cited text no. 7
    
8.
Goddard DS, Rogers M, Frieden IJ, Krol AL, White CR, Jayaraman AG, et al. Widespread porokeratotic adnexal ostial nevus: Clinical features and proposal of a new name unifying porokeratotic eccrine ostial and dermal duct nevus and porokeratotic eccrine and hair follicle nevus. J Am Acad Dermatol 2009;61:1060.e1-14.  Back to cited text no. 8
    
9.
Mondal A, Kumar P, Das A, Debbarman P, Mandal RK. Porokeratotic eccrine ostial and dermal duct nevus: A noteworthy presentation. Indian Dermatol Online J 2015;6:130-1.  Back to cited text no. 9
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10.
Zade J, Jfri A, Nabatian A, Alajaji A, Geller L, Khorasani H. Porokeratotic eccrine ostial and dermal duct nevus: A unique case treated with CO2 laser. Clin Case Rep 2017;5:675-8.  Back to cited text no. 10
    


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  [Figure 1], [Figure 2], [Figure 3]



 

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