A<unk>  is a tumor of the apex of the lung. It is a type of lung cancer defined primarily by its location situated at the top end of either the right or left lung. It typically spreads to nearby tissues such as the ribs and vertebrae. Most<unk> s are non-small-cell lung cancers. The growing tumor can cause compression of a brachiocephalic vein, subclavian artery, phrenic nerve, recurrent laryngeal nerve, vagus nerve, or, characteristically, compression of a sympathetic ganglion (the stellate ganglion), resulting in a range of symptoms known as Horner's syndrome.<unk> s are named for Henry<unk> , an American radiologist, who described them in 1924 and 1932.
Pancoast tumor
Peritonsillar abscess
Tracheal tumor
Bronchogenic cyst
Laryngeal cyst
Adenoiditis
Tonsil carcinoma
Nasopharyngeal cyst