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FROM THE ACKERMAN ACADEMY
Year : 2016  |  Volume : 7  |  Issue : 3  |  Page : 206-207  

A verrucous lesion of the eyebrow


1 Ackerman Academy of Dermatopathology, New York, USA
2 Polley Clinic of Dermatology and Dermatologic Surgery, Wilson, North Carolina, New York, USA

Date of Web Publication13-May-2016

Correspondence Address:
Dirk M Elston
Professor and Chairman, Department of Dermatology and Dermatologic Surgery Medical University of SC; MSC 578 135 Rutledge Avenue; 11th Floor, Charleston, SC 29425-5780
USA
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2229-5178.182370

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How to cite this article:
Gray Y, Johnson S, Polley DC, Elston DM. A verrucous lesion of the eyebrow. Indian Dermatol Online J 2016;7:206-7

How to cite this URL:
Gray Y, Johnson S, Polley DC, Elston DM. A verrucous lesion of the eyebrow. Indian Dermatol Online J [serial online] 2016 [cited 2019 Dec 9];7:206-7. Available from: http://www.idoj.in/text.asp?2016/7/3/206/182370

A 25 year-old female presented with a verrucous lesion on her medial part of her right eyebrow [Figure 1]. A clinical diagnosis of a viral wart was made and the lesion was biopsied. The histologic sections demonstrated an endo-exophytic lesion with squamous eddies and no cytologic atypia
Figure 1: A 25-year-old female with a verrucous lesion on the right medial eyebrow

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[Figure 2] and [Figure 3]. Immunoperoxidase staining for HPV was negative.
Figure 2: Endo-exophytic lesion with marked hyperkeratosis. (H and E, ×100)

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Figure 3: Numerous squamous eddies and no cytologic atypia. (H and E, ×400)

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   What Is Your Diagnosis? Top



   Answer Top


Inverted follicular keratosis.


   Discussion Top


Described by Helwig in 1954, inverted follicular keratosis (IFK) is a benign lesion with a histologic appearance that can be mistaken for squamous cell carcinoma. IFK typically occurs in middle-aged and older individuals, more often in men. The face is the most common site, especially the upper lip and cheek, followed by the nose, chin, forehead, eyelid, and eyebrow. IFK has also been found on the scalp, temple, conjunctiva, neck, trunk, extremities, vulvar skin, and scrotum.[1],[2],[3],[4],[5],[6] The vulvar and scrotal lesions may have been related to shaving injuries of hair follicles.[5],[6] Clinically, IFK is frequently diagnosed as verruca vulgaris. Other clinical impressions include basal cell carcinoma, keratoacanthoma, and squamous cell carcinoma.[1],[2],[3],[5] IFK can present as a cutaneous horn, even a massive one.[1],[2],[3],[7] Dermoscopic and reflectance confocal microscopy features of IFK have been described and may be helpful in its diagnosis.[8]

Histologically, IFK is a circumscribed lesion demonstrating exophytic as well as endophytic growth with papillomatosis, hyperkeratosis, and parakeratosis. There are abundant squamous eddies, and cytologic atypia with mitotic activity may or may not be present. IFK can be mistaken for squamous cell carcinoma, especially on superficial biopsy.[1],[2],[3],[5],[6],[9] IFK has histologic similarities to irritated seborrheic keratosis, keratoacanthoma, trichilemmoma, and verruca vulgaris, but most studies have found IFK to be consistently negative for HPV by immunohistochemistry, in situhybridization and polymerase chain reaction.[1],[2],[3],[10],[11],[12],[13],[14]

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Nil.

Conflicts of interest

There are no conflicts of interest.

 
   References Top

1.
Mehregan AH. Inverted follicular keratosis. Arch Dermatol 1964;89:229-35.  Back to cited text no. 1
    
2.
Mehregan AH. Inverted follicular keratosis is a distinct follicular tumor. Am J Dermatopathol 1983;5:467-70.  Back to cited text no. 2
    
3.
Azzopardi JG, Laurini R. Inverted follicular keratosis. J Clin Pathol 1975;28:465-71.  Back to cited text no. 3
    
4.
Cakmak SS, Unlu MK, Bilek B, Buyukbayram H, Sakalar YB. Conjunctival inverted follicular keratosis: A case report. Jpn J Ophthalmol 2004;48:497-8.  Back to cited text no. 4
    
5.
Roth LM, Look KY. Inverted follicular keratosis of the vulvar skin: A lesion that can be confused with squamous cell carcinoma. Int J Gynecol Pathol 2000;19:369-73.  Back to cited text no. 5
    
6.
Mysore V, Rathnakar KS. Multiple nodules over scrotum in a young man. Gulf J Dermatol Venerol 2002;9:58-59.  Back to cited text no. 6
    
7.
Soylu L, Akcali C, Aydogan LB, Ozsahinoglu C, Tuncer I. Inverted follicular keratosis. Am J Otolaryngol 1993;14:247-8.  Back to cited text no. 7
    
8.
Armengot-Carbo M, Abrego A, Gonzalez T, Alarcon I, Alos L, Carrera C, et al. Inverted follicular keratosis: Dermoscopic and reflectance confocal microscopic features. Dermatology 2013;227:62-6.  Back to cited text no. 8
    
9.
Tan KB, Tan SH, Aw DC, Jaffar H, Lim TC, Lee SJ, et al. Simulators of squamous cell carcinoma of the skin: diagnostic challenges on small biopsies and clinicopathological correlation. J Skin Cancer 2013;2013:752864.  Back to cited text no. 9
    
10.
Mehregan AH, Nadji M. Inverted follicular keratosis and verruca vulgaris. An investigation for the papillomavirus common antigen. J Cutan Pathol 1984;11:99-102.  Back to cited text no. 10
    
11.
Asadi-Amoli F, Alain A, Heidari AB, Jahanzad I. Detection of human papillomavirus infection in inverted follicular keratosis lesions of the eyelid by immunohistochemistry method. Acta Med Iran 2009;47:435-8.  Back to cited text no. 11
    
12.
Ruhoy SM, Thomas D, Nuovo GJ. Multiple inverted follicular keratosis as a presenting sign of Cowden's syndrome: Case report with human papillomavirus studies. J Am Acad Dermatol 2004;51:411-5.  Back to cited text no. 12
    
13.
Stierman S, Chen S, Nuovo G, Thomas J. Detection of human papillomavirus infection in trichilemmomas and verrucae using in situ hybridization. J Cutan Pathol 2010;37:75-80.  Back to cited text no. 13
    
14.
Kambiz KH, Kaveh D, Maede D, Hossein A, Nessa A, Ziba R, et al. Human papillomavirus deoxyribonucleic acid may not be detected in non-genital benign papillomatous skin lesions by polymerase chain reaction. Indian J Dermatol 2014;59:334-8.  Back to cited text no. 14
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