Cervical ectopic thymus occurs when thymic tissue arrests during its embryologic descent through the neck to the upper mediastinum. Most often it presents as an asymptomatic neck mass. Rarely does it present with airway compromise, particularly in neonates. A neonate presented with a retropharyngeal mass causing dynamic upper airway obstruction, mimicking a venolymphatic malformation. Ultimatel...

The retropharyngeal space is a virtual space behind the pharynx, which extends from the scull base to the level of the fourth thoracic vertebra. Many retropharyngeal masses can cause dysphagia or airway obstruction. We report the case of a 69 year-old woman with a much enlarged aneurysm in the extracranial portion of the left internal carotid, causing dysphagia, and a short review of the releva...

OBJECTIVES The aim of this study was to identify correlations between sleep apnea severity and tongue volume or posterior airway space measured via three-dimensional reconstruction of volumetric computerized tomography (CT) images in patients with obstructive sleep apnea (OSA) for use in predicting OSA severity and in surgical treatment. We also assessed associations between tongue volume and M...

The chance of developing lung cancer is increased through being exposed to cigarette smoke illustrated by studies. It is vital to understand the development of particular histologic-type cancers regarding the deposition of carcinogenic particles, which are present in human airway. In this paper, the mass transfer and deposition of cigarette smoke, inside the human airway, are investigated apply...

Correction of skeletal Class II malocclusion with camouflage orthodontic treatment generally requires the extraction maxillary first premolars to provide space for retraction incisors. Retraction incisors changes position and dimensions dental arch, which can cause in tongue posture affect upper airway. The purpose this study was determine relationship between premolar on airway malocclusion. T...

Foreign bodies in upper airway may have various presentations and be life threatening. Leeches can attach to upper airway and cause serious problems. Herein we report a 55-year-old man with hemoptysis due to attachment of leech and explain our technique for its removal.