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      Schwannoma lingual: a propósito de un caso Translated title: Lingual schwannoma: case report

      case-report

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          Abstract

          RESUMEN Introducción: Los schwannomas son neoplasias predominantemente benignas y de crecimiento lento originadas en las células de Schwann de los nervios periféricos. En la cavidad oral su prevalencia es muy baja, siendo la localización más frecuente la lengua. El diagnóstico se basa en la RMN y el estudio histológico. El tratamiento de elección es la exéresis quirúrgica. Caso clínico: Presentamos el caso de una mujer de 73 años que acude a urgencias por una tumoración en cara ventral de punta lingual de tiempo incierto de evolución. Después de estudio histológico y radiológico de la misma se confirma el diagnóstico de schwannoma lingual, por lo que es intervenida realizándose exéresis de la lesión que confirma finalmente el diagnóstico. Discusión: El schwannoma lingual es una neoplasia benigna poco frecuente cuyo pronóstico es excelente y con bajas tasas de recurrencia tras su exéresis quirúrgica.

          Translated abstract

          ABSTRACT Introduction: Schwannomas are predominantly benign and slow-growing neoplasms originated in the Schwann cells of the peripheral nerves. In the oral cavity its prevalence is very low, the most frequent location is the tongue. The diagnosis is based on MRI and histological study. The treatment of choice is surgical excision. Case presentation: We present a 73-year-old woman who came to the emergency room for a tumor on the ventral side of tongue with uncertain time of evolution. After a histological and radiological study of the same, the diagnosis of lingual schwannoma is confirmed, so it was operated, performing exeresis of the lesion that finally confirms the diagnosis. Discussion: Lingual schwannoma is a rare benign neoplasm whose prognosis is excellent and with low rates of recurrence after surgical excision.

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          Most cited references6

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          Lingual schwannoma: case report and review of the literature

          SUMMARY Schwannomas are benign, encapsulated, slow-growing and usually solitary tumours originating from Schwann cells of the peripheral nerve sheath. Approximately 25-40% of cases are seen in the head and neck region, of which 1% in the oral cavity. We report a rare case of lingual schwannoma in a young woman who was treated with complete transoral excision, and also review the literature of the past two decades, analyzing epidemiological and clinical data of the 35 cases reported. Lingual schwannomas generally present as a painless lump with an average size of 2 cm in the fourth decade of life and with no gender predilection. Complete transoral excision can be considered standard treatment for these tumours, with no recurrences documented in the literature.
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            Head and Neck Schwannomas: 20-Year Experience of a Single Institution Excluding Cutaneous and Acoustic Sites.

            While head and neck sites comprise the most common location of schwannomas, clinicopathologic data regarding those tumors occurring in non-acoustic and non-cutaneous locations are relatively sparse. In this study, therefore, we sought to examine retrospectively the clinical and pathologic features of head and neck schwannomas excised at our institution over a 20-year period. During this period, we identified a total cohort of 85 patients, which included 36 males (42.4 %) and 49 females with average age of 41.3 years, the majority of which presented asymptomatically with a mass. Localized symptoms were, however, associated with all of the schwannomas that arose in the oral cavity and larynx, while tumors within or adjacent to bone were often associated with neurologic complaints (7 of 15 such tumors [46.7 %]). Clinical follow-up data was available in 86.4 % of all cases and demonstrated no recurrences or mortality. Pathologically, the microscopic features were characteristic of those well-described for schwannomas in other sites, including alternating Antoni A and B areas and the presence of degenerative changes. Tumor encapsulation, however, was variable and was completely absent in schwannomas of the nasal cavity, paranasal sinuses, and larynx. Additionally, a significant minority of the tumors (28.2 %) exhibited foci that resembled neurofibroma. Non-acoustic, non-cutaneous schwannomas of the head and neck appear to have clinicopathologic features similar to their soft tissue counterparts with some subsite variation in presentation and/or microscopic features.
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              Schwannoma of the tongue: a case report with review of literature

              Background Schwannomas (or neurilemmomas) of the tongue are benign, usually solitary, encapsulated masses derived from Schwann cells. Clinical evidence indicates that schwannoma is painless and slow growing. In general, schwannoma is treated by surgical excision. Here, we describe a case of schwannoma of the tongue, include a review of the literature from 1955 to 2016, and provide data on age, gender, location, presenting symptoms, size, and treatment methods. Case presentation A 71-year-old female patient presented with a swelling at the base of the tongue of unknown duration. Magnetic resonance images (MRI) showed a large well-circumscribed solid mass and no significant lymph node enlargement. The mass was excised without removing overlying mucosa. Conclusions The authors report a case of lingual schwannoma that was completely removed intraorally without preoperative biopsy. No sign or symptoms of recurrence were observed at 12 months postoperatively.
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                Author and article information

                Journal
                maxi
                Revista Española de Cirugía Oral y Maxilofacial
                Rev Esp Cirug Oral y Maxilofac
                Sociedad Española de Cirugía Oral y Maxilofacial y de Cabeza y Cuello (Madrid, Madrid, Spain )
                1130-0558
                2173-9161
                June 2021
                : 43
                : 2
                : 81-83
                Affiliations
                [1] L'Hospitalet de Llobregat, Barcelona orgnameHospital Universitario de Bellvitge orgdiv1Servicio de Cirugía Oral y Maxilofacial España
                Article
                S1130-05582021000200081 S1130-0558(21)04300200081
                10.20986/recom.2021.1254/2021
                e8bbdff1-69ac-4851-855d-0b0beced31d8

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

                History
                : 17 May 2019
                : 06 March 2021
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 6, Pages: 3
                Product

                SciELO Spain

                Categories
                Casos Clínicos

                Schwannoma,neurofibroma,schwannoma lingual,schwannoma oral,schwannoma de cabeza y cuello,lingual schwannoma,oral schwannoma,head and neck schwannoma

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