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Alveolar ridge keratosis - a retrospective clinicopathological study

Identifieur interne : 004623 ( Ncbi/Merge ); précédent : 004622; suivant : 004624

Alveolar ridge keratosis - a retrospective clinicopathological study

Auteurs : Lorenzo Bellato [Suisse] ; Carla P. Martinelli-Kl Y [Suisse, Brésil] ; Celso R. Martinelli [Brésil] ; Tommaso Lombardi [Suisse]

Source :

RBID : PMC:3639237

Abstract

Background

Alveolar ridge keratosis (ARK) is a distinct, benign clinicopathological entity, characterized by a hyperkeratotic plaque or patch that occurs on the alveolar edentulous ridge or on the retromolar trigone, considered to be caused by chronic frictional trauma. The aim of this retrospective study is to present the clinicopathological features of 23 consecutive cases of ARK.

Material and methods

The 23 biopsy samples of ARK were selected and pathological features were revised (keratosis, acanthosis, surface architecture, and inflammation). Factors such as the patient’s gender, age, anatomical location, tobacco and alcohol use were analyzed.

Results

Sixteen out of the 23 cases studied were men and 7 women with a mean age of 55.05 (age ranged from 17 to 88 years). Thirteen cases had a history of tobacco habit, amongst whom, 4 also presented alcohol consumption. All the cases presented only unilateral lesions. Nineteen cases involved the retromolar trigone while 4 cases involved edentulous alveolar ridges. When observed microscopically, the lesions were mainly characterized by moderate to important hyperorthokeratosis. Inflammation was scanty or absent. In four of the cases, the presence of melanin pigment in the superficial corium or in the cytoplasm of macrophages was detected. None of the cases showed any features of dysplasia.

Conclusion

Our results reveal that ARK is a benign lesion. However, the high prevalence of smokers amongst the patients might suggest that some potentially malignant disorders such as tobacco associated leukoplakia may clinically mimic ARK.


Url:
DOI: 10.1186/1746-160X-9-12
PubMed: 23587097
PubMed Central: 3639237

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PMC:3639237

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<journal-id journal-id-type="iso-abbrev">Head Face Med</journal-id>
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<journal-title>Head & Face Medicine</journal-title>
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<article-id pub-id-type="pmc">3639237</article-id>
<article-id pub-id-type="publisher-id">1746-160X-9-12</article-id>
<article-id pub-id-type="doi">10.1186/1746-160X-9-12</article-id>
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<title-group>
<article-title>Alveolar ridge keratosis - a retrospective clinicopathological study</article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author" id="A1">
<name>
<surname>Bellato</surname>
<given-names>Lorenzo</given-names>
</name>
<xref ref-type="aff" rid="I1">1</xref>
<email>lorenzobellato@bluewin.ch</email>
</contrib>
<contrib contrib-type="author" id="A2">
<name>
<surname>Martinelli-Kläy</surname>
<given-names>Carla P</given-names>
</name>
<xref ref-type="aff" rid="I1">1</xref>
<xref ref-type="aff" rid="I2">2</xref>
<email>carla.martinelli@hispeed.ch</email>
</contrib>
<contrib contrib-type="author" id="A3">
<name>
<surname>Martinelli</surname>
<given-names>Celso R</given-names>
</name>
<xref ref-type="aff" rid="I2">2</xref>
<email>cema.mar@terra.com.br</email>
</contrib>
<contrib contrib-type="author" corresp="yes" id="A4">
<name>
<surname>Lombardi</surname>
<given-names>Tommaso</given-names>
</name>
<xref ref-type="aff" rid="I1">1</xref>
<email>Tommaso.Lombardi@unige.ch</email>
</contrib>
</contrib-group>
<aff id="I1">
<label>1</label>
Laboratory of Oral and Maxillofacial Pathology, Division of Stomatology and Oral Surgery, School of Dental Medicine, Faculty of Medicine, 19 rue Barthélemy-Menn, 1205, Geneva, Switzerland</aff>
<aff id="I2">
<label>2</label>
Centre for Diagnosis and Treatment of Oral Diseases, Ribeirão Preto, SP, Brazil</aff>
<pub-date pub-type="collection">
<year>2013</year>
</pub-date>
<pub-date pub-type="epub">
<day>16</day>
<month>4</month>
<year>2013</year>
</pub-date>
<volume>9</volume>
<fpage>12</fpage>
<lpage>12</lpage>
<history>
<date date-type="received">
<day>8</day>
<month>3</month>
<year>2013</year>
</date>
<date date-type="accepted">
<day>4</day>
<month>4</month>
<year>2013</year>
</date>
</history>
<permissions>
<copyright-statement>Copyright © 2013 Bellato et al.; licensee BioMed Central Ltd.</copyright-statement>
<copyright-year>2013</copyright-year>
<copyright-holder>Bellato et al.; licensee BioMed Central Ltd.</copyright-holder>
<license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/2.0">
<license-p>This is an Open Access article distributed under the terms of the Creative Commons Attribution License (
<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by/2.0">http://creativecommons.org/licenses/by/2.0</ext-link>
), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p>
</license>
</permissions>
<self-uri xlink:href="http://www.head-face-med.com/content/9/1/12"></self-uri>
<abstract>
<sec>
<title>Background</title>
<p>Alveolar ridge keratosis (ARK) is a distinct, benign clinicopathological entity, characterized by a hyperkeratotic plaque or patch that occurs on the alveolar edentulous ridge or on the retromolar trigone, considered to be caused by chronic frictional trauma. The aim of this retrospective study is to present the clinicopathological features of 23 consecutive cases of ARK.</p>
</sec>
<sec>
<title>Material and methods</title>
<p>The 23 biopsy samples of ARK were selected and pathological features were revised (keratosis, acanthosis, surface architecture, and inflammation). Factors such as the patient’s gender, age, anatomical location, tobacco and alcohol use were analyzed.</p>
</sec>
<sec>
<title>Results</title>
<p>Sixteen out of the 23 cases studied were men and 7 women with a mean age of 55.05 (age ranged from 17 to 88 years). Thirteen cases had a history of tobacco habit, amongst whom, 4 also presented alcohol consumption. All the cases presented only unilateral lesions. Nineteen cases involved the retromolar trigone while 4 cases involved edentulous alveolar ridges. When observed microscopically, the lesions were mainly characterized by moderate to important hyperorthokeratosis. Inflammation was scanty or absent. In four of the cases, the presence of melanin pigment in the superficial corium or in the cytoplasm of macrophages was detected. None of the cases showed any features of dysplasia.</p>
</sec>
<sec>
<title>Conclusion</title>
<p>Our results reveal that ARK is a benign lesion. However, the high prevalence of smokers amongst the patients might suggest that some potentially malignant disorders such as tobacco associated leukoplakia may clinically mimic ARK.</p>
</sec>
</abstract>
<kwd-group>
<kwd>Alveolar ridge keratosis</kwd>
<kwd>Hyperkeratosis</kwd>
<kwd>Oral leukoplakia</kwd>
<kwd>Oral squamous cell carcinoma</kwd>
</kwd-group>
</article-meta>
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<li>Suisse</li>
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<name sortKey="Bellato, Lorenzo" sort="Bellato, Lorenzo" uniqKey="Bellato L" first="Lorenzo" last="Bellato">Lorenzo Bellato</name>
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<name sortKey="Lombardi, Tommaso" sort="Lombardi, Tommaso" uniqKey="Lombardi T" first="Tommaso" last="Lombardi">Tommaso Lombardi</name>
<name sortKey="Martinelli Kl Y, Carla P" sort="Martinelli Kl Y, Carla P" uniqKey="Martinelli Kl Y C" first="Carla P" last="Martinelli-Kl Y">Carla P. Martinelli-Kl Y</name>
</country>
<country name="Brésil">
<region name="État de São Paulo">
<name sortKey="Martinelli Kl Y, Carla P" sort="Martinelli Kl Y, Carla P" uniqKey="Martinelli Kl Y C" first="Carla P" last="Martinelli-Kl Y">Carla P. Martinelli-Kl Y</name>
</region>
<name sortKey="Martinelli, Celso R" sort="Martinelli, Celso R" uniqKey="Martinelli C" first="Celso R" last="Martinelli">Celso R. Martinelli</name>
</country>
</tree>
</affiliations>
</record>

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