Intraosseous schwannoma mimicking a periapical lesion on the adjacent tooth: case report

• Published in: International endodontic journal Vol. 40; no. 1; pp. 72 - 78
• Main Authors: Martins, M. D., Taghloubi, S. A., Bussadori, S. K., Fernandes, K. P. S., Palo, R. M., Martins, M. A. T.
• Format: Journal Article
• Language: English
• Published: Oxford, UK Blackwell Publishing Ltd 01.01.2007
• Subjects: Adult; benign tumour; Dentistry; Diagnosis, Differential; Female; Humans; mandible; Mandibular Neoplasms - pathology; Mandibular Neoplasms - surgery; neural tumour; neurilemmoma; Neurilemmoma - pathology; Neurilemmoma - surgery; Periapical Granuloma - diagnosis; S100; Schwann cells; schwannoma
• ISSN: 0143-2885; 1365-2591
• DOI: 10.1111/j.1365-2591.2006.01195.x

Aim  To present an additional case of intraosseous schawannoma involving the apical area in the mandibular alveolar bone mimicking an inflammatory periapical lesion. Summary  This article describes a case of schwannoma periapically located mimicking an inflammatory periapical lesion in the mandible of a 34‐year‐old female. Diagnostic and therapeutic problems can occur when this lesion is misinterpreted as being endodontic in origin. The diagnosis, radiograph, immunohistochemical aspects and treatment are also discussed. Key learning points  • Intraosseous schwannoma is a rare unilocular radiolucency that when located periapically could be misdiagnosed as an endodontic lesion and result in unnecessary root canal treatment. • The vitality of the pulp is an important test to exclude lesions of inflammatory origin. • Histological examination is important to establish the diagnosis of lesions in the periradicular region.