Abstract

ESPINOSA-FARINAS, Carlos A. et al. Oral floor schwannoma: systematic review and case report. Rev Esp Cirug Oral y Maxilofac [online]. 2016, vol.38, n.2, pp.63-69. ISSN 2173-9161.  https://dx.doi.org/10.1016/j.maxilo.2015.12.001.

Objective: Systematically review the oral floor schwannoma. Report of a case treated in our department. Material and method: Published articles about oral floor schwannoma were identified. The inclusion criteria were: a) Final diagnosis of schwannoma located in the oral floor. b) Articles published in English, Spanish or German. The variables were analysed regarding clinical features, diagnosis and treatment. Results: Nineteen articles that met the inclusion criteria. Average age: 44.3 years (range 17-77); 42.1 % were females and 57.8 % males; time of lesion development was 8.7 months (range 1-60); side of the oral floor location: left side 52.6 %, right side 42.1 %; average diameter: 38.3 mm (range 10-70); hypoglossal nerve involvement: 15.7 %, lingual nerve: 15.7 %, mylohyoid nerve: 5.2 %, nerve not identified in 21.1 % of cases; fine needle aspiration biopsy: non diagnostic in 31.5 %, benign tumor identified 21%. Surgical excision was performed in 100 % of the cases with a follow up of 34.3 months (rank 1-120). No recurrences were reported. Conclusions: Schwannomas located on the floor of the mouth are uncommon. Environment are presented at age 40 with a slight predominance for males and mainly the left. The time evolution is close to 9 months. The hypoglossal and lingual nerves are affected equally. In similar proportion the nerve of origin cannot be identified. Fine needle aspiration biopsy is not efficient. The treatment of choice is enucleation of the tumor 11 diagnosed. No recurrences were observed.

Keywords : Schwannoma; Oral floor; Lingual nerve.

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