Resumen

GUILLEN-RIVERA, Gerardo José; ORTEGA-PERTUZ, Ana Isabel  y  ESPINA-SUAREZ, Michelle Leinin. Aggressive Odontogenic Fibromixoma in Maxilla: Surgical Approach. Int. J. Odontostomat. [online]. 2019, vol.13, n.1, pp.58-63. ISSN 0718-381X.  http://dx.doi.org/10.4067/S0718-381X2019000100058.

Odontogenic fibromyxoma (FM) is an infrequent benign lesion that shows with invasive characteristics. Considered a variant of the odontogenic myxoma, it presents a controversial mesenchymal origin and is somewhat more frequent in women. The lesion is associated with areas with adjacent dental structures, with its most frequent location in the posterior mandibular region. The objective of this study was to show an aggressive case of FM in a female, located in the posterior area of the maxilla, emphasizing its surgical approach. A case of a 52-year-old woman, who came to the clinic because of a painless, firm mass on the right side of the maxilla. Radiographically, it was seen as a radiopaque image, with poorly defined margins extending in the ipsilateral maxillary sinus; computed tomography showed the expansion of the walls of the antrum and the nasal cavity, with zygomatic compromise and the orbital floor. An incisional biopsy was performed and the histopathological diagnosis was FM. The treatment of choice consisted of block resection, using a WeberFerguson approach, along with reconstruction with a titanium plaque and mesh to guarantee suspension of the eyeball; a new histopathological study, confirmed the initial diagnosis. One year after the surgical procedure, there is no recurrence, and the reconstruction material maintains its position, providing aesthetic and functionality to the patient.

Palabras clave : odontogenic tumor; myxoma; fibromyxoma; maxilla.

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