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  • Title: [Orbito-sphenoidal expansive processes: an anatomopathological study of 82 cases].
    Author: Silva LL, Barbosa-Coutinho LM.
    Journal: Arq Bras Oftalmol; 2009; 72(1):84-90. PubMed ID: 19347129.
    Abstract:
    PURPOSE: To describe the orbito-sphenoidal expansive processes diagnosed at the Anatomo-Pathological Laboratory of the Fundação Faculdade Federal de Ciências Médicas de Porto Alegre - Complexo Hospitalar Santa Casa de Porto Alegre during a period of 15 years, evaluating their relative frequencies among other tumoral processes. METHODS: We performed a statistical analysis of all orbital tumors with anatomicopathological diagnosis from January 1968 to December 1982, comparing the frequency of orbital tumors with the total number of tumors diagnosed at this Laboratory in a period of 5 years. RESULTS: Eighty-two cases were diagnosed of expansive processes involving the orbit in 15 years - 20.7% of the total (17 cases) affecting children (up to 14 years-old) and the remaining 79.3% (65 cases) affecting adults. Children presented more frequently optic nerve gliomas (4 of 6 cases 66.6%), retinoblastomas (4 cases - 100%) and rhabdomyosarcomas (3 of 4 cases - 75%). Less frequent diseases in children were optic nerve meningioma, neurofibroma, inflammatory pseudotumor, chronic dacryoadenitis, neuroma and chronic inflammatory process. The adult population presented more cases of basal cell carcinomas (18 cases), squamous cell carciomas (12 cases), meningiomas (10 cases), choroidal malignant melanoma (3 cases) and lacrimal gland tumors (7 cases). Tumors originated from bone or vascular structures, pseudo-tumors, and intraorbital epidermic cysts were also diagnosed, among others. Of a sum of 2,639 tumors diagnosed at this Laboratory in the time period of 5 years (1976 to 1980), there were 22 cases of orbital tumors, reaching a total of 0.8% of all cases. CONCLUSIONS: The anatomicopathological study of these processes is somehow important to diagnose and to establish an adequate therapy. The incidence of the expansive processes involving the orbit allows an epidemiological characterization of the different medical services responsible for the treatment of eye diseases. Despite its lower frequencies when compared to the diagnosis from other branches of Anatomical Pathology, Eye pathology has developed considerably over the past few years, contributing to more accurate diagnosis and to a better understanding of mechanisms responsible for these processes.
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