Generic selectors
Exact matches only
Search in title
Search in content
Search in posts
Search in pages
Filter by Categories
15th National Conference of the IAOMFP, Chennai, 2006
Abstract
Abstracts from current literature
Acne in India: Guidelines for management - IAA Consensus Document
Addendum
Announcement
Art & Psychiatry
Article
Articles
Association Activities
Association Notes
Award Article
Book Review
Brief Report
Case Analysis
Case Letter
Case Letters
Case Notes
Case Report
Case Reports
Clinical and Laboratory Investigations
Clinical Article
Clinical Studies
Clinical Study
Commentary
Conference Oration
Conference Summary
Continuing Medical Education
Correspondence
Corrigendum
Cosmetic Dermatology
Cosmetology
Current Best Evidence
Current View
Derma Quest
Dermato Surgery
Dermatopathology
Dermatosurgery Specials
Dispensing Pearl
Do you know?
Drug Dialogues
e-IJDVL
Editor Speaks
Editorial
Editorial Remarks
Editorial Report
Editorial Report - 2007
Editorial report for 2004-2005
Errata
Erratum
Focus
Fourth All India Conference Programme
From Our Book Shelf
From the Desk of Chief Editor
General
Get Set for Net
Get set for the net
Guest Article
Guest Editorial
History
How I Manage?
IADVL Announcement
IADVL Announcements
IJDVL Awards
IJDVL AWARDS 2015
IJDVL Awards 2018
IJDVL Awards 2019
IJDVL Awards 2020
IJDVL International Awards 2018
Images in Clinical Practice
In Memorium
Inaugural Address
Index
Knowledge From World Contemporaries
Leprosy Section
Letter in Response to Previous Publication
Letter to Editor
Letter to the Editor
Letter to the Editor - Case Letter
Letter to the Editor - Letter in Response to Published Article
LETTER TO THE EDITOR - LETTERS IN RESPONSE TO PUBLISHED ARTICLES
Letter to the Editor - Observation Letter
Letter to the Editor - Study Letter
Letter to the Editor - Therapy Letter
Letter to the Editor: Articles in Response to Previously Published Articles
Letters to the Editor
Letters to the Editor - Letter in Response to Previously Published Articles
Letters to the Editor: Case Letters
Letters to the Editor: Letters in Response to Previously Published Articles
Medicolegal Window
Messages
Miscellaneous Letter
Musings
Net Case
Net case report
Net Image
Net Letter
Net Quiz
Net Study
New Preparations
News
News & Views
Obervation Letter
Obituary
Observation Letter
Observation Letters
Oration
Original Article
ORIGINAL CONTRIBUTION
Original Contributions
Pattern of Skin Diseases
Pearls
Pediatric Dermatology
Pediatric Rounds
Perspective
Presedential Address
Presidential Address
Presidents Remarks
Quiz
Recommendations
Regret
Report
Report of chief editor
Report of Hon : Treasurer IADVL
Report of Hon. General Secretary IADVL
Research Methdology
Research Methodology
Resident page
Resident's Page
Resident’s Page
Residents' Corner
Residents' Corner
Retraction
Review
Review Article
Review Articles
Revision Corner
Self Assessment Programme
SEMINAR
Seminar: Chronic Arsenicosis in India
Seminar: HIV Infection
Short Communication
Short Communications
Short Report
Special Article
Specialty Interface
Studies
Study Letter
Supplement-Photoprotection
Supplement-Psoriasis
Symposium - Contact Dermatitis
Symposium - Lasers
Symposium - Pediatric Dermatoses
Symposium - Psoriasis
Symposium - Vesicobullous Disorders
SYMPOSIUM - VITILIGO
Symposium Aesthetic Surgery
Symposium Dermatopathology
Symposium-Hair Disorders
Symposium-Nails Part I
Symposium-Nails-Part II
Tables
Technology
Therapeutic Guidelines
Therapeutic Guidelines - IADVL
Therapeutics
Therapy
Therapy Letter
View Point
Viewpoint
What’s new in Dermatology
Case Report
2002:68:4;239-240
PMID: 17656953

Dilated pore of winer

RR Mittal, PS Sethi, Anju Jha
 Department of Dermato-Venereology, Govt Medical College & Rajindra Hospital, Patiala-147 001, Punjab, India

Correspondence Address:
R R Mittal
# 97, New lal Bagh, Patiala - 147 001
India
How to cite this article:
Mittal R R, Sethi P S, Jha A. Dilated pore of winer. Indian J Dermatol Venereol Leprol 2002;68:239-240
Copyright: (C)2002 Indian Journal of Dermatology, Venereology, and Leprology

Abstract

Two cases of dilated pore of Winer were observed. First case had single defined black papule with well defined margin, central pore and discharge of black powdery material from nose since 3 years. The second case had one 9mm, black well-defined papule with central pore discharging black powdery material on right forearm since 9 months and 9 similar smaller papules were seen on forearm and lower abdomen. Histopathologically both revealed greatly dilated infundibulum lined by acanthotic epidermis and atrophic subinfundibular hair structures thus confirming diagnosis of dilated pore of Winer
Keywords: Dilated pore, Winer, Naevus-comedonicus

Introduction

Dilated Pore (DP) was first reported by Winer in 1954.[1] DP was seen predominantly in young adult males as a solitary brown to black, giant comedo with central pore, which is nonpalpable due to lack of infiltration.[2] DP was evaluated as an adnexal benign tumour with follicular differentiation although infrequently.[3] Histopathologically DP is characterized by markedly dilated infundibulum lined by thin epidermis near the ostium and acanthotic, hypertrophic epidermis with thin strands invading dermis plus subinfundibular atrophy of hair structures in its deeper part.[4] Comedo naevus (CN) appears at birth or childhood or adolescent, grows rapidly at puberty, is unilateral and linear, reveal group of pits filled with black keratinous plugs, associated with frequent episodes of infection and are seen on face, trunk and upper arms.[5] Although clinical lesions of DP and solitary lesion of CN are almost identical clinically yet, final differentiation is possible on histopathology.

Case Reports

Case 1: A 27- year-old man presented with solitary, dark-black, non palpable, 7 mm, well defined papule with elevated margins and 2 mm central pore on nose since 3 years. At times discharge of black material was observed especially in mornings after pressing it. An excision biopsy was performed. Histopathology showed greatly dilated infundibulum lined by acanthotic epidermis and subinfundibular atrophic structures thus confirming the clinical diagnosis of DP He had recurrence of lesion at the same site after 7 months.

Case 2: A 26 -year-old man visited Dermato Venereology department with asymptomatic dark black, 9mm, oval papule with well defined elevated margin, central pore, discharging powdery black material occasionally, on the extensor aspect of right forearm since 9 months [Figure - 1]. Incomplete curettage of above lesion was tried earlier by some dermatologist without any benefit. Deep and wide excision biopsy was done and lesion healed completely after 10 days. Histopathologically greatly dilated infundibuium lined by acanthotic epidermis and atrophic subinfundibulurn hair structures confirmed the diagnosis of DP.

In addition, similar (2-3mm) nine discrete black papules were observed on right forearm and lower abdomen.

Discussion

The exact etiopathogenesis of DP is not known. Some studies propose it to be a histological variant of CN,[4] while others consider it to be an adnexal tumour of follicular differentiations.[3] Classical DP and CN can be easily differentiated clinically.[2],[5] They are two distinct entities as histopathologically also, DP of Winer has markedly dilated infundibulum filled with keratin and subinfundibular atrophic hair structures whereas CN reveals epidermal invagination with keratin plugs.[4] Due to late age of onset and characteristic histopathology DP of Winer should be considered as an adnexal benign tumour with follicular differentiation rather than a naevus.

Although DP lacks infiltration yet pore seems to be deep one as recurrence occurred in case no.1 probably due to superficial nature of biopsy and therefore excision biopsy should be deep in case of DR.

References
1.
Winer L. The dilated pore, a trichoepithelioma. J Invest Dermatol 1954;23:181.
[Google Scholar]
2.
Rook, Wilkinson Ebling. Naevi and other developmental defects. Textbook of Dermatology. Vol.1, 6th edition.
[Google Scholar]
3.
Hausmann G, Ferrando J, Palou J. The Winer dilated pore. Med Luton lbero Lot Am 1989;17:45-47.
[Google Scholar]
4.
Resnik KS, Kentor GR, Howe NR, et al. Dilated nevus. A histologic variant of nevus comedonicus. Am J Dermatopothol 1993;15:169-171.
[Google Scholar]
5.
Cestari TF, Rubim M, Valentini BC, Naevus comedonicus: Case report and brief review of literature. Pediatric Dermatology Vol. 8 No.4, 300-5.
[Google Scholar]
Show Sections