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      Planificación digital en tratamiento de fibroma osificante juvenil psamomatoide maxilar. Presentación de un caso Translated title: Digital planning in the treatment of juvenile maxillary psamomatoid ossifying fibroma. Presentation of a case

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          Abstract

          RESUMEN Los fibromas osificantes son neoplasias fibro-óseas benignas que afectan al esqueleto craneofacial y mandibular. El fibroma osificante psamomatoide juvenil es una variante rara del fibroma osificante, la que puede ser localmente agresiva y con una alta tasa de recidiva. Se presenta el caso de una paciente de 15 años con antecedentes mórbidos de hipotiroidismo e hiperparatiroidismo, quien consulta por aumento de volumen y desplazamiento de dientes en maxilar derecho. El resultado histopatológico fue compatible con fibroma osificante psamomatoide juvenil. Dado el contexto hospitalario durante la pandemia de COVID-19, el tratamiento consistió en hemimaxilectomía con autoinjerto libre de cresta ilíaca mediante planificación digital.

          Translated abstract

          ABSTRACT Ossifying fibromas are benign fibro-osseous neoplasms that affect the craniofacial and mandibular skeleton. Juvenile psamomatoid ossifying fibroma is a rare variant of ossifying fibroma, which can be locally aggressive, and with a high recurrence rate. We present the clinical case of a 15-year-old patient with a morbid history of hypothyroidism and hyperparathyroidism, who consulted for increased volume and displacement of teeth in the right maxilla. The histopathological result was consistent with juvenile psamomatoid ossifying fibroma. Owing to the hospital situation during the COVID-19 the treatment consisted of hemimaxillectomy with iliac crest autograft using digital planning.

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          WHO classification of head and neck tumours

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            Aggressive psammomatoid ossifying fibromas of the sinonasal region: a clinicopathologic study of a distinct group of fibro-osseous lesions.

            Psammomatoid ossifying fibromas represent a unique subset of fibro-osseous lesions of the sinonasal tract. They have distinctive histomorphologic features and a tendency toward locally aggressive behavior, including invasion and destruction of adjacent anatomic structures. Seven cases of psammomatoid ossifying fibromas of the sinonasal tract were identified in the files of the Otolaryngic Tumor Registry at the Armed Forces Institute of Pathology. Medical records, including the clinical history, location of the lesions, radiographs, treatment, and follow-up were reviewed in each case. Follow-up information was available in all of the cases. Four of the patients were male and three were female. The patient's ages ranged from 5 to 54 years (median age, 33 years). Symptoms included facial swelling, nasal obstruction, pain, sinusitis, headache, and proptosis. Radiographic studies confirmed the presence of an osseous and/or soft tissue mass varying in appearance from well demarcated without invasion or erosion to invasive with bone erosion and intracranial extension. Sites of involvement included the nasal cavity and all paranasal sinuses, particularly the ethmoid and maxillary sinuses. Often, more than one sinus was involved and extension of disease included involvement of the orbit, nasopharynx, palate, and anterior cranial fossa. The histologic appearance was characterized by the presence of small mineralized (psammomatoid) bodies admixed with a cellular stroma with a variable amount of myxomatous material and scattered giant cells. Confusion with other osseous and soft tissue tumors may occur resulting in too limited or too aggressive management. En bloc surgical excision is the treatment of choice and may prove curative. Aggressive behavior with recurrence(s) or invasion into adjacent structures occurred. At the time of this writing, the patients are alive over follow-up periods ranging from 6 months to 7 years. Gnathic and midfacial fibro-osseous proliferations are a diverse group of lesions. A subset of these fibro-osseous lesions with predilection for the sinonasal tract were identified. These lesions are characterized by their distinctive histology, including psammomatoid ossicles and their locally aggressive growth. Complete surgical removal is the treatment of choice.
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              Brown Tumor of Mandible in Association with Primary Hyperparathyroidism: A Case Report

              Brown tumors are giant cell focal lesion that arises as a result of abnormal bone metabolism in patients with hyperparathyroidism (HPT). The lesions localize in areas of extensive bone resorption, which is replaced by fibrovascular tissue and giant cells with abundant deposits hemorrhage and hemosiderin. A rare case of brown tumor of mandible in a 22-year-old woman is reported here. This case emphasizes the importance of a detailed systemic investigation for all lesions in the maxillofacial region and also discusses the diverse presentations associated with primary HPT.
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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 2022
                : 44
                : 2
                : 75-78
                Affiliations
                [2] Santiago de Chile orgnameUniversidad de Chile orgdiv1Facultad de Odontología orgdiv2Departamento del Niño y Ortopedia Dentomaxilar Chile
                [1] Santiago orgnameHospital Clínico San José orgdiv1Servicio de Cirugía orgdiv2Equipo de Cirugía y Traumatología Bucal y Maxilofacial Chile
                [3] Santiago de Chile orgnameUniversidad de Chile orgdiv1Facultad de Odontología orgdiv2Departamento de Cirugía y Traumatología Bucal y Maxilofacial Chile
                Article
                S1130-05582022000200075 S1130-0558(22)04400200075
                10.20986/recom.2022.1341/2021
                7c043b47-9f0f-4dfb-a2a2-a0b4e51484b3

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

                History
                : 28 January 2021
                : 16 May 2022
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 9, Pages: 4
                Product

                SciELO Spain

                Categories
                Casos Clínicos

                fibroma osificante juvenil,tumor óseo,fibroma osificante psamomatoide,Benign fibro-osseous tumor,juvenile ossifying fibroma,bone tumor,psamomatoid ossifying fibroma,Tumor benigno fibro-óseo

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