Research ethics in animal models.

Unlabelled: The use of animals in scientific experiments has been described since the fifth century BC. A number of scientific advances in health are attributed to animal models. The issue of the moral status of animals has always been debated.

Comparison between endoscopic and open surgery in 37 patients with nasopharyngeal angiofibroma.

Unlabelled: Juvenile nasopharyngeal angiofibroma is a rare benign vascular tumor of the nasopharynx. Although the treatment of choice is surgery, there is no consensus on what is the best approach.

Aim: To compare surgical time and intraoperative transfusion requirements in patients undergoing endoscopic surgery versus open / combined and relate the need for transfusion during surgery with the time between embolization and surgery.

Rare nasosinusal tumors: case series and literature review.

Tumors of the nasal cavity and paranasal sinuses are unusual pathologies found in clinical practice. Approximately 0.8% of all human cancers are located in this area.

Endoscopic surgery of nasopharyngeal angiofibroma.

Unlabelled: Nasopharyngeal angiofibroma is a vascular benign tumor that affects young men, and surgery is the treatment of choice. Endoscopic surgery has been used to excise tumors in their initial stages, when there is no evidence of residual or recurrent disease.

Aim: The aim of this study is to evaluate the endoscopic approach preceded by tumor embolization as treatment option for stages II to III angiofibroma.

Midfacial degloving--access to nasal cavity and paranasal sinuses lesions.

Common surgical approaches for medial maxillectomy include lateral rhinotomy and midfacial degloving. Lateral rhinotomy provides excellent surgical exposure but leaves a bulging scar on the face. Despite its own limitations, midfacial degloving has been preferred to lateral rhinotomy because it does not leave any external scar on the face(1).