Celina Siqueira Barbosa Pereira

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CONCLUSION The compound gelatin-resorcin-formaldehyde (GRF) was a better stabilizing material for cartilage grafts in rabbits than butyl-2-cyanoacrylate. GRF was also better than the suture when comparing fixation of cartilage to the periosteum and inflammatory reaction. OBJECTIVE Cartilage grafting is an interesting option for refinements on(More)
UNLABELLED Acquired middle ear cholesteatoma is a disease which promotes bone erosion resulting in potentially serious complications. The tumor necrosis factor alpha (TNF-α) is present in cholesteatoma and it is related to bone erosion, as shown by different authors. To understand the aggressiveness characteristics of cholesteatoma is necessary, however, to(More)
CONTEXT The musculocutaneous nerve is one of the terminal branches of the lateral fasciculus of the brachial plexus, and is responsible for innervation of the flexor musculature of the elbow and for skin sensitivity on the lateral surface of the forearm. Its absence has been described previously, but its real prevalence is unknown. CASE REPORT A case of(More)
The digastric muscle is formed by two muscle bellies: one anterior and one posterior, joined by an intermediate tendon. It is localized in the anterior cervical region. The anterior belly divides the region between the hyoid bone and the mandible into two: laterally the submandibular triangle, and medially the submental triangle. The anatomical variations(More)
UNLABELLED Cartilage grafting is an interesting option for rhinoplasties refinements. AIM To compare butyl-2-cyanoacrylate, compound gelatin-resorcin-formaldehyde (GRF) and suture control to determine the efficacy of these tissue glue preparations in securing grafted cartilage. STUDY DESIGN Experimental. METHODS Fifteen male adult New Zealand rabbits(More)
UNLABELLED Middle ear cholesteatomas are characterized by the presence of stratified squamous epithelium in this cavity with highly invasive properties causing bone destruction and it may lead to complications. AIM To study the histopathological features in acquired cholesteatomas of the middle ear, correlating this data with patient age. STUDY DESIGN(More)
Middle ear cholesteatomas are characterized by the presence of keratinized stratified squamous epithelium inside this cavity. It is considered to be more aggressive in childhood. In normal skin, the epidermal growth factor receptor (EGFR) is expressed in the cytoplasmic membrane of epithelial cells of the basal layer. In contrast, its expression in middle(More)
PURPOSE To compare histologically the action of Mitomycin C and that of Clobetasol propionate for surgical wound healing in rats. METHODS A circular skin fragment was surgically removed from 57 Wistar rats. Twenty-two animals were treated with Mitomycin C with topical medication in a single dose, 22 with Clobetasol propionate with a cream medication once(More)
UNLABELLED Objective methods of assessment are often required in scientific studies. Histological tests with immunohistochemical staining can be assessed by photometry. OBJECTIVE To compare this objective method with the subjective evaluation performed by three independent examiners, using slides of acquired middle ear cholesteatomas. METHOD We selected(More)
UNLABELLED Temporal bones are valuable resources to study ear diseases. Although there are several methods for removing temporal bones from cadavers, such methods are not usually described in enough details in experimental research papers. OBJECTIVES To describe a simple and rapid method for ear canal and tympanic membrane removal, and to evaluate its(More)
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