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Recurrence of odontogenic keratocyst in the buccal space
  1. Takuma Watanabe
  1. Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
  1. Correspondence to Dr Takuma Watanabe; takuma{at}


Odontogenic keratocyst (OKC) rarely appears in the buccal space. It is aggressive and infiltrative, and simple enucleation results in high recurrence. This case report describes an OKC located in the buccal space recurring twice in a 62-year-old man with a 25 mm diameter cystic lesion in the right pterygomandibular space. The multicystic lesion was enucleated. Subsequently, a recurrence was observed, and the gourd-shaped recurrent lesion was also enucleated. The difficulty in detaching the mass from the scar tissue resulted in the perforation of the cystic wall. Thereafter, a second recurrence was observed, and the tissue surrounding the unicystic recurrent lesion was excised. The histopathological features were consistent with those of OKC. The present case is the 11th reported case of OKC in the buccal space and the first with apparent recurrence. Since complete enucleation in the pterygomandibular space is difficult, excision along with the surrounding tissues could prevent recurrence.

  • dentistry and oral medicine
  • pathology
  • oral and maxillofacial surgery

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  • Contributors TW wrote up the case report and performed a literature review on odontogenic keratocyst in the buccal space.

  • Funding The author has not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Case reports provide a valuable learning resource for the scientific community and can indicate areas of interest for future research. They should not be used in isolation to guide treatment choices or public health policy.

  • Competing interests None declared.

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