You are asked to review a 65 year-old man who is comatose (GCS 3) with small pupils (2 mm bilaterally). He has a history of diabetes mellitus and bipolar disorder. He was discharged from hospital yesterday, following a surgical procedure.
Horner Syndrome = unilateral interruption of ascending cervical sympathetic innervation eye and face.
Pancoast Syndrome occurs secondary to local compression of brachial plexus and sympathetic chain by superior (pulmonary) sulcus tumors.
Henry Khunrath Pancoast (1875 – 1939) was an American radiologist. The Pancoast tumour and Pancoast syndrome is named after him