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      Tumores óseos orbitarios

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          Abstract

          Objetivo: Reportar la frecuencia de los tumores óseos orbitarios. Método: En un período de ocho años (1998-2005) se realizaron 117 899 biopsias en el Instituto Anatomopatológico "Dr. J. A. O’Daly" de la Universidad Central de Venezuela, de las cuales se identificaron 1 826 biopsias óseas, de las cuales 17 (0,93 %) correspondieron a tumores óseos orbitarios. Se investigaron las variables edad, sexo, localización y tipo de neoplasia. Resultados: En la revisión se identificaron 10 tumores óseos primarios (8 benignos y 2 malignos), 6 casos de pseudotumores (35 %) y un tumor metastásico (6 %). El osteoma y la displasia fibrosa fueron las condiciones más frecuentes. Conclusiones: Los tumores óseos primarios de la órbita son un grupo heterogéneo de condiciones que constituyen el 0,6 % - 2 % de todos los tumores orbitarios.

          Translated abstract

          Purpose: To evaluate the rate of orbital bone tumours. Method: Our experience over a 8-year period in Instituto Anatomopatologico "Dr. J. A. O’Daly" at the Universidad Central de Venezuela, yielded 17 (0.93 %) cases of orbital bone tumours from a total of 117 899 biopsies. Data were collected on patient age, sex, tumour localization and type of neoplastic disorders. Results: Ten cases (59 %) were primary tumours of orbital bone (8 benign and 2 malignant), six patients with tumour-like lesions (35 %) and one bone metastases. The two most commonly encountered entities were osteoma and fibrous dysplasia. Conclusions: Primary tumours of orbital bone constitute 0,6 % - 2 % of all orbital tumours.

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          Most cited references26

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          Primary bone tumors of the orbit.

          Primary tumors of orbital bone constitute 0.6% to 2% of all orbital tumors. Our experience over a 24-year period in the Orbital Clinic at the University of British Columbia yielded 62 (1.9%) cases from a total of 3,340 orbital tumors. Although a heterogeneous group, primary orbital bone tumors may be classified on a clinicopathologic basis into benign fibro-osseous or cartilaginous, reactive, neoplastic and vascular disorders. Presentation is usually a gradual mass effect, with infiltration and acute hemorrhage being features of malignant and reactive lesions respectively. The two most commonly encountered entities were fibrous dysplasia and osteoma, accounting for 22 cases. Although both these conditions rarely present a diagnostic challenge, nonspecific histologic and radiologic appearances can result in poor characterization of several of the rarer lesions. Hence, close cooperation between clinician, radiologist and pathologist is essential for accurate diagnosis.
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            Diffuse calvarial meningioma: a case report.

            A rare case of a diffuse calvarial meningioma in a sixty-three year-old female is reported. The patient presented with headache, painful proptosis and chemosis of the left eye. Imaging showed that the frontoparietal calvarium on both sides and the left orbital roof were thickened. The thickened bone showed patchy rarefaction. In relationship to the thickened bone, there was an enhancing en-plaque meningioma. The tumour extended on to the superolateral aspect of the left orbit and resulted in proptosis. Excision of the left frontoparietal calvarium and the orbital tumour was performed. The management of diffuse calvarial meningioma is discussed and the relevant literature is briefly reviewed.
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              Metastatic tumors of the orbit: a retrospective study.

              To present the clinical features and facts on prognosis, therapy and diagnostics of orbital metastases treated in the Orbital Center Kiel. We reviewed the records of 20 patients with orbital metastases (ca. 2% of all orbital patients seen in a 10-year period). The mean age at first manifestation of orbital symptoms was 64 years. On average, 64 months was the period of time between the onset of the primary disease and orbital manifestation. The sites of the primary tumors were breast (8), choroid (2), prostate (2), gastrointestinal tract (3), lung (2), urinary bladder (1), Schmincke tumor of the throat (1) and unknown origin (1). Eleven patients were female, 9 male. The main primary symptoms consisted of lid swelling (11), red eye (9), diplopia (10), and proptosis (7). Although the majority (16/20) were treated by chemotherapy, radiotherapy or surgery, 19 patients died after a mean survival time of 14.7 months. Orbital metastases remain an unfavorable prognostic factor, but the diagnosis and treatment are still important in order to prevent loss of vision and improve the patient's quality of life. As previous studies have shown, the overall survival rate is still as limited as nearly half a century ago.
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                Author and article information

                Journal
                rfm
                Revista de la Facultad de Medicina
                RFM
                Universidad Central de Venezuela. Facultad de Medicina. Comisión de Publicaciones de la Facultad de Medicina (Caracas, Distrito Capital, Venezuela )
                0798-0469
                June 2007
                : 30
                : 1
                : 12-17
                Affiliations
                [02] Caracas orgnameUniversidad Central de Venezuela orgdiv1Facultad de Medicina orgdiv2Instituto de Anatomía Patológica Venezuela
                [03] Caracas orgnameCentro Médico Docente La Trinidad Venezuela
                [01] Caracas orgnameUniversidad Central de Venezuela orgdiv1Facultad de Medicina orgdiv2Instituto de Anatomía Patológica Venezuela
                Article
                S0798-04692007000100003 S0798-0469(07)03000103
                161a0b9d-b683-42d9-94ec-dd792587bda8

                http://creativecommons.org/licenses/by/4.0/

                History
                : 09 October 2006
                : 24 January 2007
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 22, Pages: 6
                Product

                SciELO Venezuela

                Categories
                Trabajos Originales

                Neoplasm,Fibrous dysplasia,Osteoma,Orbit,Bone,Displasia fibrosa,Órbita,Tumor,Hueso

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