Indian Journal of Dermatology
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Year : 2012  |  Volume : 57  |  Issue : 2  |  Page : 164-165
Keratotic papule with a collarette of skin


Department of Dermatology, Venereology, and Leprosy, SBMP Medical College, Hospital and Research Center, BLDE University, Bijapur, Karnataka, India

Date of Web Publication20-Apr-2012

Correspondence Address:
Arun C Inamadar
Professor and Head Department of Dermatology, Venereology, and Leprosy, SBMP Medical College, Hospital and Research Center, BLDE University, Bijapur - 586 103, Karnataka
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0019-5154.94300

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How to cite this article:
Adya KA, Palit A, Inamadar AC. Keratotic papule with a collarette of skin. Indian J Dermatol 2012;57:164-5

How to cite this URL:
Adya KA, Palit A, Inamadar AC. Keratotic papule with a collarette of skin. Indian J Dermatol [serial online] 2012 [cited 2019 Jun 18];57:164-5. Available from: http://www.e-ijd.org/text.asp?2012/57/2/164/94300


A 30-year-old female presented with a small, asymptomatic, dome-shaped lesion over the tip of her right middle finger [Figure 1] since the past 3 months. There was no history of preceding trauma. On examination, a small 4 × 4 mm keratotic papule was seen over the tip of the right third digit. The papule comprised a central mass surrounded by a keratotic rim [Figure 2]; it was firm and nontender on palpation. Excision biopsy of the lesion was done under local anesthesia and histopathological examination of the specimen revealed a central fibrocollagenous core [Figure 3] interspersed with multiple small blood vessels arranged in groups. The central mass was surrounded by a hyperkeratotic and acanthotic epidermis with broad, wide, and elongated rete ridges [Figure 4] that at places were branched.
Figure 1: Dome-shaped keratotic papule on the tip of the right middle finger

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Figure 2: Flesh-colored keratotic papule with a collarette of raised skin at the base

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Figure 3: Fibrocollagenous core with blood vessels arranged in groups (H and E; 40×)

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Figure 4: Hyperkeratotic, acanthotic epidermis surrounding the central fibrocollagenous core (H and E; 40×)

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   Question Top


What is your diagnosis?



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   References Top

1.Berger RS, Spielvogel RL. Dermal papule on a distal digit. Arch Dermatol 1988;124:1559.   Back to cited text no. 1
[PUBMED]    
2.Kint A, Baran R. Histopathologic study of Koenen tumors: Are they different from acquired digital fibrokeratoma? J Am Acad Dermatol 1988;18:369-72.  Back to cited text no. 2
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3.Bart RS, Andrade R, Kopf AW, Leider M. Acquired digital fibrokeratomas. Arch Dermatol 1968;97:120-9.  Back to cited text no. 3
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4.Dereure O, Savoy D, Doz F, Junien C, Guilhou JJ. Multiple acral fibromas in a patient with familial retinoblastoma: A cutaneous marker of tumour-suppressor gene germline mutation? Br J Dermatol 2000;143:856-9.  Back to cited text no. 4
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5.Moulin G, Balme B, Thomas L. Familial multiple acral mucinous fibrokeratomas. J Am Acad Dermatol 1998;38:999-1001.  Back to cited text no. 5
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6.Verallo VVM. Acquired digital fibrokeratomas. Br J Dermatol 1968;80:730-6.  Back to cited text no. 6
    
7.Bart RS, Andrade R, Kopf AW, Leider M. Acquired digital fibrokeratomas. Arch Dermatol 1968;97:120-9.  Back to cited text no. 7
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    Figures

  [Figure 1], [Figure 2], [Figure 3], [Figure 4]



 

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