Edgard Eduard Engel

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Osteochondroma is a cartilage capped benign tumor developing mainly at the juxta-epiphyseal region of long bones. The rate of malignant transformation, mainly into chondrosarcoma, is estimated to be less than 1-3%. Transformation into osteosarcoma is very rare and has been reported only thirteen times. There is little information on treatment and(More)
OBJECTIVE Macroporous cement with mechanical properties similar to cancellous bone may improve the treatment of large bone defects in relation to solid acrylic cement. The aim of this study was to compare physical and mechanical characteristics of a polymethyl methacrylate (PMMA) based porous cement with cancellous bone. METHODS Compressive strength and(More)
Paracoccidioides brasiliensis infection causes a systemic mycosis originally described in Latin America but with current reports of worldwide distribution. The clinical presentation of paracoccidiodomycosis as an isolated long-bone lesion in children is quite unusual. This article describes a 10-year-old male with a lytic femoral bone lesion caused by P.(More)
OBJECTIVE To determine whether soluble interleukin 2 receptor (sIL-2R) levels correlate with natural history of disease in patients with systemic sclerosis (SSc). METHODS The following groups were studied: Group I included 81 consecutive new patients with SSc. Group II consisted of 21 patients with diffuse cutaneous (dc) SSc whose peripheral blood and(More)
Computed tomography (CT)-guided percutaneous drilling is an alternative for osteoid osteoma treatment. This study aims to evaluate the remodeling of the drill orifice. The success rate and complications were also recorded and compared with other treatment methods. Fifteen patients with an average age of fourteen years (ranging from 4 to 25) submitted to(More)
Synovial sarcomas are high-grade malignant mesenchymal tumors that account for 10% of all soft-tissue sarcomas. Almost 95% of these tumors are characterized by a nonrandom chromosomal abnormality, t(X;18)(p11.2;q11.2), that is observed in both biphasic and monophasic variants. In this article, we present the case of a 57-year-old woman diagnosed with(More)
Objective: To evaluate intraand interobserver agreement in the identification of incidental enchondromas at knee magnetic resonance imaging, and to assess the prevalence of imaging findings. Materials and Methods: Retrospective study reviewing 326 knee magnetic resonance images acquired in the period between November 2009 and September 2010. The images were(More)
I Diagnostic Imaging Division, Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo Ribeirao Preto/SP, Brazil. II Biomechanics, Medicine and Rehabilitation of the Locomotor System, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo Ribeirao Preto/SP, Brazil. Email: marcello@fmrp.usp.br Tel.: 55 16(More)
Epithelioid sarcoma is a rare, aggressive soft tissue tumor of unknown histogenesis showing predominantly epithelioid cytomorphology. We conducted a conventional and molecular cytogenetic study of a 27-year-old male with epithelioid sarcoma with angiomatoid features. Cytogenetic analysis of epithelioid sarcoma metaphase spreads by GTG-banding revealed a(More)
A combined biochemical and cytochemical study of catalase was performed on alveolar macrophages lavaged from the lungs of adult male rats. Biochemically, catalase activity was present in both a high-speed granule fraction and in the supernatant. The granule-associated activity exhibited latency. Two methods of cell breakage, sonication and homogenization,(More)