Approximately one out of 500 chest radiographs shows the incidental finding of a solitary pulmonary nodule and almost one half of these pulmonary lesions are caused by a tumor. Unfortunately, only 2% to 5% of all lung tumors are of benign origin, e. g. lipoma, fibroma, hamartoma, and chondroma, and
The larynx serves to protect the lower airways, facilitates respiration and plays a key role in phonation. Based on anatomic location, the larynx is divided into the supraglottic larynx, the glottis or glottic larynx, and the subglottic larynx. The tumours of larynx can be divided into benign or