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Rare disease
CASE REPORT
Periosteal desmoid tumour: a rare finding in the oral cavity
  1. Singh Shruti,
  2. Radhika M Bavle,
  3. Paremala Konda,
  4. Reshma Venugopal
  1. Oral Pathology, Krishnadevaraya College of Dental Sciences, Bangalore, India
  1. Correspondence to Dr Paremala Konda, paremala{at}gmail.com

Summary

A 55-year-old female patient reported with an intraoral well-localised asymptomatic swelling on the right side of the mandible in relation to the right mandibular first molar along with a history of trauma 6 months back. Panoramic radiograph revealed normal trabecular bone pattern in relation to the lesion. The lesion was excised along with the associated buccal cortical plate and tooth. The microscopic examination revealed a well-circumscribed lesion consisting of spindle cells arranged in storiform pattern associated with the buccal cortical plate. The key feature to note was presence of reactive periosteum, which was in continuum with the lesion. Immunohistochemistry (IHC) revealed faint nuclear positivity for β-catenin. The above findings led to our diagnosis of periosteal desmoid, which is rarely reported in the head-and-neck region. The major challenge in the diagnosis of such lesions is good clinicopathological correlation as the differential diagnosis of spindle-cell lesions is vast and needs IHC confirmation.

  • dentistry and oral medicine
  • pathology

https://doi.org/10.1136/bcr-2017-220989

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    Footnotes

    • Contributors SS: conception and design, acquisition of data or analysis and interpretation of data. Drafting the article or revising it critically for important intellectual content. Agreement to be accountable for the article and to ensure that all questions regarding the accuracy or integrity of the article are investigated and resolved. RMB: conception and design, acquisition of data or analysis and interpretation of data. Drafting the article or revising it critically for important intellectual content. Final approval of the version to be published. Agreement to be accountable for the article and to ensure that all questions regarding the accuracy or integrity of the article are investigated and resolved. PK: drafting the article or revising it critically for important intellectual content. Final approval of the version to be published. RV: conception and design, acquisition of data or analysis and interpretation of data. Drafting the article or revising it critically for important intellectual content. Agreement to be accountable for the article and to ensure that all questions regarding the accuracy or integrity of the article are investigated and resolved.

    • Competing interests None declared.

    • Patient consent Obtained.

    • Provenance and peer review Not commissioned; externally peer reviewed.