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Patterns of mandibular invasion in oral squamous cell carcinoma of the mandibular region

Identifieur interne : 001B77 ( Ncbi/Merge ); précédent : 001B76; suivant : 001B78

Patterns of mandibular invasion in oral squamous cell carcinoma of the mandibular region

Auteurs : Manoj Pandey [Inde] ; Latha P. Rao [Inde] ; Shaima R. Das [Inde] ; Anitha Mathews [Inde] ; Elizabeth M. Chacko [Inde] ; Br Naik [Inde]

Source :

RBID : PMC:1803788

Abstract

Background

Mandibular resections are routinely carried out for achieving a R0 resection for oral cancers. However, the need of mandibular resection to achieve this has always been questioned. The present study was carried out to define the pattern of mandibular involvement in carcinoma of the mandibular region.

Patients and methods

A total of 25 consecutive patients who had undergone mandibular resection and were found to have mandibular invasion were studied in a prospective open fashion. After decalcification the specimens were serially sectioned at 1 cm interval to identify invasion of mandibular bone. Type of invasion, route of spread and host cell reactions were also recorded.

Results

The mandibular involvement was infiltrative in 14(56%) and erosive in 11(44%). It was cortical in 5(20%), marrow involvement was seen in 15(60%) while 5(20%) had spread through the inferior alveolar canal. Of the 25, 24(96%) lesions were located with in 1 cm of the mandible.

Conclusion

The possibility of mandibular involvement is higher in patients where tumours are located with in 1 cm of the mandible. Involvement of mandible through the canal of inferior alveolar nerve in the present study was relatively high (20%). Therefore it is recommended that before a decision is taken to preserve the mandible it should be thoroughly screened for possible involvement.


Url:
DOI: 10.1186/1477-7819-5-12
PubMed: 17263872
PubMed Central: 1803788

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PMC:1803788

Le document en format XML

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<sec sec-type="methods">
<title>Patients and methods</title>
<p>A total of 25 consecutive patients who had undergone mandibular resection and were found to have mandibular invasion were studied in a prospective open fashion. After decalcification the specimens were serially sectioned at 1 cm interval to identify invasion of mandibular bone. Type of invasion, route of spread and host cell reactions were also recorded.</p>
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<sec>
<title>Results</title>
<p>The mandibular involvement was infiltrative in 14(56%) and erosive in 11(44%). It was cortical in 5(20%), marrow involvement was seen in 15(60%) while 5(20%) had spread through the inferior alveolar canal. Of the 25, 24(96%) lesions were located with in 1 cm of the mandible.</p>
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<sec>
<title>Conclusion</title>
<p>The possibility of mandibular involvement is higher in patients where tumours are located with in 1 cm of the mandible. Involvement of mandible through the canal of inferior alveolar nerve in the present study was relatively high (20%). Therefore it is recommended that before a decision is taken to preserve the mandible it should be thoroughly screened for possible involvement.</p>
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<name>
<surname>Pandey</surname>
<given-names>Manoj</given-names>
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<xref ref-type="aff" rid="I1">1</xref>
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<email>manojpandey@vsnl.com</email>
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<surname>Rao</surname>
<given-names>Latha P</given-names>
</name>
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<xref ref-type="aff" rid="I6">6</xref>
<email>latha@amrita.ac.in</email>
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<name>
<surname>Das</surname>
<given-names>Shaima R</given-names>
</name>
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<email>shaima@yahoo.co.in</email>
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<name>
<surname>Mathews</surname>
<given-names>Anitha</given-names>
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<email>cytology@rcctvm.org</email>
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<name>
<surname>Chacko</surname>
<given-names>Elizabeth M</given-names>
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<email>shaima@yahoo.co.in</email>
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<name>
<surname>Naik</surname>
<given-names>BR</given-names>
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<email>naikbr@yahoo.co.in</email>
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<aff id="I1">
<label>1</label>
Department of Surgical Oncology, Regional Cancer Centre, Thiruvananthapuram Kerala, India</aff>
<aff id="I2">
<label>2</label>
Department of Surgical Oncology, Institute of Medical Sciences, Banaras Hindu University, Varanasi 221005, India</aff>
<aff id="I3">
<label>3</label>
Department of oral maxillofacial surgery, Government Dental College, Thiruvananthapuram Kerala, India</aff>
<aff id="I4">
<label>4</label>
Department of Pathology, Government Medical College, Thiruvananthapuram Kerala, India</aff>
<aff id="I5">
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Department of Pathology, Regional Cancer Centre, Thiruvananthapuram, India</aff>
<aff id="I6">
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Department of Oral and maxillofacial Surgery, Amritha Institute of Medical Sciences, Kochi, India</aff>
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<fpage>12</fpage>
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<history>
<date date-type="received">
<day>13</day>
<month>12</month>
<year>2006</year>
</date>
<date date-type="accepted">
<day>30</day>
<month>1</month>
<year>2007</year>
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<permissions>
<copyright-statement>Copyright © 2007 Pandey et al; licensee BioMed Central Ltd.</copyright-statement>
<copyright-year>2007</copyright-year>
<copyright-holder>Pandey et al; licensee BioMed Central Ltd.</copyright-holder>
<license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/2.0">
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), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</p>
<pmc-comment> Pandey Manoj manojpandey@vsnl.com Patterns of mandibular invasion in oral squamous cell carcinoma of the mandibular region 2007World Journal of Surgical Oncology 5(1): 12-. (2007)1477-7819(2007)5:1<12>urn:ISSN:1477-7819</pmc-comment>
</license>
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<abstract>
<sec>
<title>Background</title>
<p>Mandibular resections are routinely carried out for achieving a R0 resection for oral cancers. However, the need of mandibular resection to achieve this has always been questioned. The present study was carried out to define the pattern of mandibular involvement in carcinoma of the mandibular region.</p>
</sec>
<sec sec-type="methods">
<title>Patients and methods</title>
<p>A total of 25 consecutive patients who had undergone mandibular resection and were found to have mandibular invasion were studied in a prospective open fashion. After decalcification the specimens were serially sectioned at 1 cm interval to identify invasion of mandibular bone. Type of invasion, route of spread and host cell reactions were also recorded.</p>
</sec>
<sec>
<title>Results</title>
<p>The mandibular involvement was infiltrative in 14(56%) and erosive in 11(44%). It was cortical in 5(20%), marrow involvement was seen in 15(60%) while 5(20%) had spread through the inferior alveolar canal. Of the 25, 24(96%) lesions were located with in 1 cm of the mandible.</p>
</sec>
<sec>
<title>Conclusion</title>
<p>The possibility of mandibular involvement is higher in patients where tumours are located with in 1 cm of the mandible. Involvement of mandible through the canal of inferior alveolar nerve in the present study was relatively high (20%). Therefore it is recommended that before a decision is taken to preserve the mandible it should be thoroughly screened for possible involvement.</p>
</sec>
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</front>
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