<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE article  PUBLIC "-//NLM//DTD Journal Publishing DTD v3.0 20080202//EN" "http://dtd.nlm.nih.gov/publishing/3.0/journalpublishing3.dtd"><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" dtd-version="3.0" xml:lang="en" article-type="research article"><front><journal-meta><journal-id journal-id-type="publisher-id">CRCM</journal-id><journal-title-group><journal-title>Case Reports in Clinical Medicine</journal-title></journal-title-group><issn pub-type="epub">2325-7075</issn><publisher><publisher-name>Scientific Research Publishing</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.4236/crcm.2017.612036</article-id><article-id pub-id-type="publisher-id">CRCM-81157</article-id><article-categories><subj-group subj-group-type="heading"><subject>Articles</subject></subj-group><subj-group subj-group-type="Discipline-v2"><subject>Medicine&amp;Healthcare</subject></subj-group></article-categories><title-group><article-title>
 
 
  Erythroplasia of Queyrat: Case Report &amp; Review of the Literature
 
</article-title></title-group><contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Prarthana</surname><given-names>Adhikari</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref></contrib><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Kiran</surname><given-names>Jang Kunwar</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref><xref ref-type="corresp" rid="cor1"><sup>*</sup></xref></contrib><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Changzeng</surname><given-names>Huang</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref><xref ref-type="corresp" rid="cor1"><sup>*</sup></xref></contrib></contrib-group><aff id="aff1"><addr-line>Wuhan Union Hospital of China, Wuhan, China</addr-line></aff><author-notes><corresp id="cor1">* E-mail:<email>kjk_kunwar@hotmail.com(KJK)</email>;<email>hcz0501@126.com(CH)</email>;</corresp></author-notes><pub-date pub-type="epub"><day>04</day><month>12</month><year>2017</year></pub-date><volume>06</volume><issue>12</issue><fpage>308</fpage><lpage>310</lpage><history><date date-type="received"><day>9,</day>	<month>June</month>	<year>2017</year></date><date date-type="rev-recd"><day>16,</day>	<month>December</month>	<year>2017</year>	</date><date date-type="accepted"><day>19,</day>	<month>December</month>	<year>2017</year></date></history><permissions><copyright-statement>&#169; Copyright  2014 by authors and Scientific Research Publishing Inc. </copyright-statement><copyright-year>2014</copyright-year><license><license-p>This work is licensed under the Creative Commons Attribution International License (CC BY). http://creativecommons.org/licenses/by/4.0/</license-p></license></permissions><abstract><p>
 
 
  Erythroplasia of Queyrat (EQ) is Squamous cell carcinoma in situ of penis usually involving glans and prepuce, commonly found in uncircumcised men with progression into invasive carcinoma in about 30% of cases. We present a case of 50 yrs, male with reddish, Irritative rash on glans penis; HPE confirms the case of EQ with acanthosis, derangement of stratum spinosum and basement membrane integrity. It successfully treated with two cycle of Photo Dynamic Therapy (PDT). If conservative approach with immquimod, fluorouracil fails then invasive approach should be adopted.
 
</p></abstract><kwd-group><kwd>Erythroplasia of Queyrat (EQ)</kwd><kwd> Glans Penis</kwd><kwd> Immquimod</kwd><kwd> Photo Dynamic Therapy (PDT)</kwd></kwd-group></article-meta></front><body><sec id="s1"><title>1. Introduction</title><p>Erythroplasia of Queyrat (EQ) [<xref ref-type="bibr" rid="scirp.81157-ref1">1</xref>] is an uncommon carcinoma in situ, which usually occurs in the mucosa of glans penis, originally reported by Queyrat in 1911. The commonest form of EQ is being premalignant lesion with progression rate of about 30%. Clinically, it appears as a persistent well-circumscribed erythematous lesion of the glans but differential diagnosis with Balanitis, Bowens Disease is made by histopathological report [<xref ref-type="bibr" rid="scirp.81157-ref2">2</xref>] . Thus Histopathological Examination plays a significant role in diagnosis and management of the disease. The standard protocol for management should be by Immquimod, fluorouracil and Invasive approach should be adopted if conservative therapy causes no improvement.</p></sec><sec id="s2"><title>2. Case Report</title><p>51 years, Male presented with reddish rash on the tip of penis since 6 months. Irritative and eroding in nature and has been persistent with gradual increase-</p><p>ment of the lesion. Onexamination, glistening cherry red lesion noted on the tip of penis as shown in <xref ref-type="fig" rid="fig1">Figure 1</xref>(a), <xref ref-type="fig" rid="fig1">Figure 1</xref>(b). HPE report (<xref ref-type="fig" rid="fig2">Figure 2</xref>(a), <xref ref-type="fig" rid="fig2">Figure 2</xref>(b); Hematoxylin &amp; Eosin Stain, with 40 &amp; 100 magnifying power): Acanthosis, slight derangement of stratum spinosum, basement membrane integrity, visible nuclear hyper chromatic cells, and pathological karyokinesis &amp; dyskeratotic cells. Patient was treated with photodynamictherapy (PDT) twice.</p></sec><sec id="s3"><title>3. Discussion</title><p>EQ [<xref ref-type="bibr" rid="scirp.81157-ref3">3</xref>] [<xref ref-type="bibr" rid="scirp.81157-ref4">4</xref>] is Squamous cell carcinoma in situ of penis usually involving glans and prepuce, commonly found in uncircumcised men with progression into invasive carcinoma in about 30% of cases.</p><p>Clinical features depend upon case to case, some are presented late.</p><p>Modalities of treatment depend upon the clinical onset of the disease; early presentation with small lesions can be treated conservatively. Currently, Immiquimod [<xref ref-type="bibr" rid="scirp.81157-ref5">5</xref>] being the most frequently used drug, even 5-Fluorouracil has promising result. If the conservative approach fails then more aggressive (Invasive) [<xref ref-type="bibr" rid="scirp.81157-ref6">6</xref>] [<xref ref-type="bibr" rid="scirp.81157-ref7">7</xref>] approach should be adopted.</p>Course of Action<p>Patient was given Photo Dynamic Therapy and post therapy; subject was followed up for every 1 month with slight improvement in subsequent visit.</p></sec><sec id="s4"><title>Cite this paper</title><p>Adhikari, P., Kunwar, K.J. and Huang, C.Z. (2017) Erythroplasia of Queyrat: Case Report &amp; Review of the Literature. Case Reports in Clinical Medicine, 6, 308-310. https://doi.org/10.4236/crcm.2017.612036</p></sec></body><back><ref-list><title>References</title><ref id="scirp.81157-ref1"><label>1</label><mixed-citation publication-type="other" xlink:type="simple">https://en.wikipedia.org/wiki/Erythroplasia_of_Queyrat</mixed-citation></ref><ref id="scirp.81157-ref2"><label>2</label><mixed-citation publication-type="other" xlink:type="simple">Johnston, R.B. and Weedon, D. (2012) Tumors of the Epidermis. Weedon’s Skin Pathology Essentials. Elsevier Churchill Livingstone, Edinburgh, 31.</mixed-citation></ref><ref id="scirp.81157-ref3"><label>3</label><mixed-citation publication-type="journal" xlink:type="simple"><name name-style="western"><surname>Queyrat</surname><given-names> L. </given-names></name>,<etal>et al</etal>. 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