Giant carotid chemodectoma treated with a combination of surgery and CyberKnife radiotherapy: a case report and review of the literature.

Background: Paragangliomas are rare vascular neuroendocrine tumors that develop in the extra-adrenal paraganglion tissue. They occur most commonly at the carotid bifurcation, where they are known as carotid body tumors. Most paragangliomas are benign, locally aggressive, infiltrative tumors.

External dacryocystorhinostomy and transnasal canthopexy: new details of combined surgery.

Purpose: To describe the authors' modified combined surgical technique for external dacryocystorhinostomy and transnasal canthopexy.

Methods: A retrospective medical record review was performed including patients with late posttraumatic telecanthus and nasolacrimal duct obstruction treated by their combined dacryocystorhinostomy-transnasal canthopexy technique. In this technique, the bony window is extended superiorly and posteriorly further than in standard dacryocystorhinostomy, to allow pulling the canthus though the window, but at the same time not disturbing the suture of the dacryocystorhinostomy anastomosis.