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Embryonal rhabdomyosarcoma in the maxillary sinus with orbital involvement in a pediatric patient:Case report

World Journal of Clinical Cases 2017年第12期5卷 440-445页

作者： Ana Carolina Rodrigues de Melo Tácio Candeia Lyra Isabella Lima Arrais Ribeiro alexandre rolim da paz Paulo Rogério Ferreti Bonan Ricardo Dias de Castro Ana Maria Gondim Valen?a Department of Clinical and Social Dentistry Federal University of Paraíba Department of Pathology Hospital Napole?o Laureano Department of Restorative Dentistry Federal University of Paraíba

This report presents a case of embryonal rhabdomyosarcoma(e RMS) located in the left maxillary sinus and invading the orbital cavity in a ten-year-old male patient who was treated at a referral *** images provided from the computed tomography showed a heterogeneous mass with soft-tissue density,occupying part of the left half of the face inside the maxillary sinus,and infiltrating and destroying the bone structure of the maxillary sinus,left orbit,ethmoidal cells,nasal cavity,and sphenoid *** analysis of the histological sections revealed an undifferentiated malignant neoplasm infiltrating the skeletal muscle *** immunohistochemical analysis was positive for the antigens:MyoD 1,myogenin,desmin,and Ki67(100% positivity in neoplastic cells),allowing the identification of the tumour as an eR *** treatment protocol included initial chemotherapy followed by radiotherapy and finally *** total time of the treatment was nine months,and in 18-mo of follow-up period did not show no local recurrences and a lack of visual impairment.

关键词： Oncology Embryonal rhabdomyosarcoma Pediatrics Maxillary sinus Chemotherapy

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Biopolymer Sponge for High Grade Renal Trauma: An Experimental Study in Rabbits

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Open Journal of Urology 2014年第1期4卷 1-6页

作者： Leandro H. M. Tavares Fábio O. Vilar José L. Aguiar alexandre R. paz Francisco A. D. Melo Gustavo R. P. Negromonte Department of Surgery Federal University of Paraiba University Hospital Lauro Wanderley Joao Pessoa Brazil Department of Surgery Federal University of Pernambuco Clinics Hospital Recife Brazil

Introduction: Acute blunt or open renal trauma sometimes requires conservative measure which involves the use of specific materials in order to adequately restore renal parenchima. The purpose of this study is to analyze the effects of the sugar cane biopolymer sponge in an experimental model of renal trauma in rabbits. Methods: Experimental prospective study was paired with twelve New Zealand rabbits. After induction of renal trauma bilateral high-grade (grade 4-collecting system, according to AAST), the sugar cane biopolymer sponge was used for homeostasis and reconstruction of the right renal parenchyma (experimental group). The same procedure was performed in the left kidney, but using the Surgifoam? sponge (Control Group). The animals were sacrificed after four weeks. Histological analysis was performed and the results were compared after statistically being evaluated. Results: Comparing the experimental group with the control, there was more inflammatory reaction and premature adhesions in the first one. Concerning the influence on efficacy and biocompatibility of the biopolymer, no serious complications like massive bleeding, haematoma, fistula or urinary stone formation were found in both groups. Conclusion: The sugar cane biopolymer sponge demonstrated good efficacy in relation to hemostatic control and reconstruction of the renal parenchyma without major complications. Future studies may direct its routine use in urologic practice.

关键词： Acute Renal Injury Surgical Hemostasis Absorbable Implants Inflammation Biocompatible Materials

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