Aside from constitutional symptoms of cancer such as malaise, fever, weight loss and fatigue,<unk>  can include a complete Horner's syndrome in severe cases: miosis (constriction of the pupils), anhidrosis (lack of sweating), ptosis (drooping of the eyelid), and pseudoenophthalmos (as a result of the ptosis). In progressive cases, the brachial plexus is also affected, causing pain and weakness in the muscles of the arm and hand with a symptomatology typical of thoracic outlet syndrome. The<unk>  can also compress the recurrent laryngeal nerve and from this a hoarse voice and "bovine" (non-explosive) cough may occur. In superior vena cava syndrome, obstruction of the superior vena cava by a<unk>  (mass effect) causes facial swelling cyanosis and dilatation of the veins of the head and neck. A<unk>  is an apical<unk>  that is typically found in conjunction with a history of smoking tobacco. The clinical signs and symptoms may be mistaken for neurovascular compromise at the level of the superior thoracic aperture. The patient's smoking history, rapid onset of clinical signs and symptoms, and pleuritic pain can suggest an apical<unk> . A<unk>  can give rise to both<unk>  syndrome and Horner's syndrome. When the brachial plexus roots are involved, it will produce<unk>  syndrome; involvement of sympathetic fibers as they exit the cord at T1 and ascend to the superior cervical ganglion will produce Horner's syndrome.
Pancoast tumor
Peritonsillar abscess
Tracheal tumor
Bronchogenic cyst
Laryngeal cyst
Adenoiditis
Tonsil carcinoma
Nasopharyngeal cyst