Incidental occurrence of an unusually large mastoid foramen on cone-beam computed tomography and review of the literature
Identifieur interne : 000528 ( Pmc/Curation ); précédent : 000527; suivant : 000529Incidental occurrence of an unusually large mastoid foramen on cone-beam computed tomography and review of the literature
Auteurs : Ali Z. Syed [États-Unis] ; Cleo Sin [États-Unis] ; Raquel Rios [États-Unis] ; Mel Mupparapu [États-Unis]Source :
- Imaging Science in Dentistry [ 2233-7822 ] ; 2016.
Abstract
The incidental finding of an enlarged mastoid foramen on the right posterior mastoid region of temporal bone is reported, together with a discussion of its clinical significance. A 67-year-old female underwent the pre-implant assessment of a maxillary left edentulous region. A cone-beam computed tomographic (CBCT) image was acquired and referred for consultation. Axial CBCT slices revealed a unilateral, well-defined, noncorticated, low-attenuation, transosseous defect posterior to the mastoid air cells in the right temporal bone. The borders of the osseous defect were smooth and continuous. No other radiographic signs suggestive of erosion or sclerosis were noted in the vicinity. The density within the defect was homogenous and consistent with a foramen and/or soft tissue. The patient's history and physical examination revealed no significant medical issues, and she was referred to a neuroradiologist for a second opinion. The diagnosis of an enlarged mastoid foramen was made and the patient was reassured.
Url:
DOI: 10.5624/isd.2016.46.1.39
PubMed: 27051638
PubMed Central: 4816770
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Syed</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Oral and Maxillofacial Medicine and Diagnostic Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, USA.</nlm:aff><country xml:lang="fr" wicri:curation="lc">États-Unis</country><wicri:regionArea>Department of Oral and Maxillofacial Medicine and Diagnostic Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH</wicri:regionArea></affiliation></author><author><name sortKey="Sin, Cleo" sort="Sin, Cleo" uniqKey="Sin C" first="Cleo" last="Sin">Cleo Sin</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Oral and Maxillofacial Medicine and Diagnostic Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, USA.</nlm:aff><country xml:lang="fr" wicri:curation="lc">États-Unis</country><wicri:regionArea>Department of Oral and Maxillofacial Medicine and Diagnostic Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH</wicri:regionArea></affiliation></author><author><name sortKey="Rios, Raquel" sort="Rios, Raquel" uniqKey="Rios R" first="Raquel" last="Rios">Raquel Rios</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Oral and Maxillofacial Medicine and Diagnostic Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, USA.</nlm:aff><country xml:lang="fr" wicri:curation="lc">États-Unis</country><wicri:regionArea>Department of Oral and Maxillofacial Medicine and Diagnostic Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH</wicri:regionArea></affiliation></author><author><name sortKey="Mupparapu, Mel" sort="Mupparapu, Mel" uniqKey="Mupparapu M" first="Mel" last="Mupparapu">Mel Mupparapu</name><affiliation wicri:level="1"><nlm:aff id="A2">Division of Radiology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA.</nlm:aff><country xml:lang="fr" wicri:curation="lc">États-Unis</country><wicri:regionArea>Division of Radiology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA</wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">27051638</idno><idno type="pmc">4816770</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4816770</idno><idno type="RBID">PMC:4816770</idno><idno type="doi">10.5624/isd.2016.46.1.39</idno><date when="2016">2016</date><idno type="wicri:Area/Pmc/Corpus">000528</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000528</idno><idno type="wicri:Area/Pmc/Curation">000528</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">000528</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Incidental occurrence of an unusually large mastoid foramen on cone-beam computed tomography and review of the literature</title><author><name sortKey="Syed, Ali Z" sort="Syed, Ali Z" uniqKey="Syed A" first="Ali Z." last="Syed">Ali Z. Syed</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Oral and Maxillofacial Medicine and Diagnostic Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, USA.</nlm:aff><country xml:lang="fr" wicri:curation="lc">États-Unis</country><wicri:regionArea>Department of Oral and Maxillofacial Medicine and Diagnostic Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH</wicri:regionArea></affiliation></author><author><name sortKey="Sin, Cleo" sort="Sin, Cleo" uniqKey="Sin C" first="Cleo" last="Sin">Cleo Sin</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Oral and Maxillofacial Medicine and Diagnostic Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, USA.</nlm:aff><country xml:lang="fr" wicri:curation="lc">États-Unis</country><wicri:regionArea>Department of Oral and Maxillofacial Medicine and Diagnostic Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH</wicri:regionArea></affiliation></author><author><name sortKey="Rios, Raquel" sort="Rios, Raquel" uniqKey="Rios R" first="Raquel" last="Rios">Raquel Rios</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Oral and Maxillofacial Medicine and Diagnostic Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, USA.</nlm:aff><country xml:lang="fr" wicri:curation="lc">États-Unis</country><wicri:regionArea>Department of Oral and Maxillofacial Medicine and Diagnostic Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH</wicri:regionArea></affiliation></author><author><name sortKey="Mupparapu, Mel" sort="Mupparapu, Mel" uniqKey="Mupparapu M" first="Mel" last="Mupparapu">Mel Mupparapu</name><affiliation wicri:level="1"><nlm:aff id="A2">Division of Radiology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA.</nlm:aff><country xml:lang="fr" wicri:curation="lc">États-Unis</country><wicri:regionArea>Division of Radiology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA</wicri:regionArea></affiliation></author></analytic><series><title level="j">Imaging Science in Dentistry</title><idno type="ISSN">2233-7822</idno><idno type="eISSN">2233-7830</idno><imprint><date when="2016">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>The incidental finding of an enlarged mastoid foramen on the right posterior mastoid region of temporal bone is reported, together with a discussion of its clinical significance. A 67-year-old female underwent the pre-implant assessment of a maxillary left edentulous region. A cone-beam computed tomographic (CBCT) image was acquired and referred for consultation. Axial CBCT slices revealed a unilateral, well-defined, noncorticated, low-attenuation, transosseous defect posterior to the mastoid air cells in the right temporal bone. The borders of the osseous defect were smooth and continuous. No other radiographic signs suggestive of erosion or sclerosis were noted in the vicinity. The density within the defect was homogenous and consistent with a foramen and/or soft tissue. The patient's history and physical examination revealed no significant medical issues, and she was referred to a neuroradiologist for a second opinion. The diagnosis of an enlarged mastoid foramen was made and the patient was reassured.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Kim, Lk" uniqKey="Kim L">LK Kim</name></author><author><name sortKey="Ahn, Cs" uniqKey="Ahn C">CS Ahn</name></author><author><name sortKey="Fernandes, Ae" uniqKey="Fernandes A">AE Fernandes</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Cheatle, A" uniqKey="Cheatle A">A Cheatle</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Louis, Rg" uniqKey="Louis R">RG Louis</name></author><author><name sortKey="Loukas, M" uniqKey="Loukas M">M Loukas</name></author><author><name sortKey="Wartmann, Ct" uniqKey="Wartmann C">CT Wartmann</name></author><author><name sortKey="Tubbs, Rs" uniqKey="Tubbs R">RS Tubbs</name></author><author><name sortKey="Apaydin, N" uniqKey="Apaydin N">N Apaydin</name></author><author><name sortKey="Gupta, Aa" 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<front><journal-meta><journal-id journal-id-type="nlm-ta">Imaging Sci Dent</journal-id><journal-id journal-id-type="iso-abbrev">Imaging Sci Dent</journal-id><journal-id journal-id-type="publisher-id">ISD</journal-id><journal-title-group><journal-title>Imaging Science in Dentistry</journal-title></journal-title-group><issn pub-type="ppub">2233-7822</issn><issn pub-type="epub">2233-7830</issn><publisher><publisher-name>Korean Academy of Oral and Maxillofacial Radiology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">27051638</article-id><article-id pub-id-type="pmc">4816770</article-id><article-id pub-id-type="doi">10.5624/isd.2016.46.1.39</article-id><article-categories><subj-group subj-group-type="heading"><subject>Case Report</subject></subj-group></article-categories><title-group><article-title>Incidental occurrence of an unusually large mastoid foramen on cone-beam computed tomography and review of the literature</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Syed</surname><given-names>Ali Z.</given-names></name><xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><name><surname>Sin</surname><given-names>Cleo</given-names></name><xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><name><surname>Rios</surname><given-names>Raquel</given-names></name><xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author" corresp="yes"><name><surname>Mupparapu</surname><given-names>Mel</given-names></name><xref ref-type="aff" rid="A2">2</xref></contrib></contrib-group><aff id="A1"><label>1</label>Department of Oral and Maxillofacial Medicine and Diagnostic Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, USA.</aff><aff id="A2"><label>2</label>Division of Radiology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA.</aff><author-notes><corresp>Correspondence to: Prof. Mel Mupparapu. Division of Radiology, University of Pennsylvania School of Dental Medicine, 240 S 40th Street, Philadelphia, PA 19104, USA. Tel) 1-215-746-8869, Fax) 1-215-573-7853, <email>mmd@upenn.edu</email></corresp></author-notes><pub-date pub-type="ppub"><month>3</month><year>2016</year></pub-date><pub-date pub-type="epub"><day>24</day><month>3</month><year>2016</year></pub-date><volume>46</volume><issue>1</issue><fpage>39</fpage><lpage>45</lpage><history><date date-type="received"><day>20</day><month>8</month><year>2015</year></date><date date-type="rev-recd"><day>10</day><month>9</month><year>2015</year></date><date date-type="accepted"><day>20</day><month>9</month><year>2015</year></date></history><permissions><copyright-statement>Copyright © 2016 by Korean Academy of Oral and Maxillofacial Radiology</copyright-statement><copyright-year>2016</copyright-year><license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by-nc/3.0/"><license-p>This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by-nc/3.0/">http://creativecommons.org/licenses/by-nc/3.0/</ext-link>) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p></license></permissions><abstract><p>The incidental finding of an enlarged mastoid foramen on the right posterior mastoid region of temporal bone is reported, together with a discussion of its clinical significance. A 67-year-old female underwent the pre-implant assessment of a maxillary left edentulous region. A cone-beam computed tomographic (CBCT) image was acquired and referred for consultation. Axial CBCT slices revealed a unilateral, well-defined, noncorticated, low-attenuation, transosseous defect posterior to the mastoid air cells in the right temporal bone. The borders of the osseous defect were smooth and continuous. No other radiographic signs suggestive of erosion or sclerosis were noted in the vicinity. The density within the defect was homogenous and consistent with a foramen and/or soft tissue. The patient's history and physical examination revealed no significant medical issues, and she was referred to a neuroradiologist for a second opinion. The diagnosis of an enlarged mastoid foramen was made and the patient was reassured.</p></abstract><kwd-group><kwd>Cone-Beam Computed Tomography</kwd><kwd>Mastoid</kwd><kwd>Temporal Bone</kwd><kwd>Cortical Defect</kwd></kwd-group></article-meta></front><floats-group><fig id="F1" orientation="portrait" position="float"><label>Fig. 1</label><caption><title>Cone beam CT panoramic reconstruction of the maxilla shows a missing maxillary left first molar as well as missing third molars bilaterally. The maxillary sinuses are well pneumatized bilaterally.</title></caption><graphic xlink:href="isd-46-39-g001"></graphic></fig><fig id="F2" orientation="portrait" position="float"><label>Fig. 2</label><caption><title>An orthogonal section of the edentulous area in the region of the left maxillary first molar showing the residual bone in the region, the vicinity of both maxillary sinuses, and the nasal fossa.</title></caption><graphic xlink:href="isd-46-39-g002"></graphic></fig><fig id="F3" orientation="portrait" position="float"><label>Fig. 3</label><caption><title>Cone beam CT multiplanar reconstruction images show an enlarged right mastoid emissary foramen. Axial (top left), sagittal (top right with arrow pointing to the foramen), coronal (bottom left) and three-dimensional volume rendering views (bottom right) demonstrate this anatomical variation.</title></caption><graphic xlink:href="isd-46-39-g003"></graphic></fig><fig id="F4" orientation="portrait" position="float"><label>Fig. 4</label><caption><title>Three-dimensional volume rendering shows the large mastoid foramen on the right side (arrow).</title></caption><graphic xlink:href="isd-46-39-g004"></graphic></fig><fig id="F5" orientation="portrait" position="float"><label>Fig. 5</label><caption><title>Axial cone beam CT image demonstrates the large right mastoid foramen and a smaller left mastoid foramen (arrowhead).</title></caption><graphic xlink:href="isd-46-39-g005"></graphic></fig><fig id="F6" orientation="portrait" position="float"><label>Fig. 6</label><caption><title>Sagittal image of the right mastoid region shows the mastoid foramen measurements (11.2×7.2 mm).</title></caption><graphic xlink:href="isd-46-39-g006"></graphic></fig><fig id="F7" orientation="portrait" position="float"><label>Fig. 7</label><caption><title>Intracranial side of the right mastoid foramen (arrow). Note the small mastoid foramen on the left side (arrowhead).</title></caption><graphic xlink:href="isd-46-39-g007"></graphic></fig><fig id="F8" orientation="portrait" position="float"><label>Fig. 8</label><caption><title>Extracranial side of the right mastoid foramen (arrow). The smaller left mastoid foramen is still noticeable in this section (arrowhead).</title></caption><graphic xlink:href="isd-46-39-g008"></graphic></fig><table-wrap id="T1" orientation="portrait" position="float"><label>Table 1</label><caption><title>Summary of the anatomical studies included in this review.</title></caption><graphic xlink:href="isd-46-39-i001"></graphic></table-wrap><table-wrap id="T2" orientation="portrait" position="float"><label>Table 2</label><caption><title>Summary of the radiological studies included in this review.</title></caption><graphic xlink:href="isd-46-39-i002"></graphic><table-wrap-foot><fn><p>CT, computed tomography. MRI, magnetic resonance imaging.</p></fn></table-wrap-foot></table-wrap><table-wrap id="T3" orientation="portrait" position="float"><label>Table 3</label><caption><title>Summary of the case studies included in this review.</title></caption><graphic xlink:href="isd-46-39-i003"></graphic><table-wrap-foot><fn><p>CT, computed tomography; MRI, magnetic resonance imaging; SCC, squamous cell carcinoma.</p></fn></table-wrap-foot></table-wrap></floats-group></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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