For the condition below, give the diagnosis and the effect of: a. 1% hydroxyamphetamine b. 1% adrenaline on the affected pupil. Patient B A heavy smoker with haemoptysis Answer The history and signs are indicative of a left apical lung tumour (Pancoast's tumour). This causes a pre-ganglionic Horner's syndrome. a. 1% hydroxyamphetamine will dilate the miosed pupil because the third order neurone is intact. b. 0.1% adrenaline will not dilate the miosed pupil because there is no denervation hypersensitivity. More questions
For the condition below, give the diagnosis and the effect of: a. 1% hydroxyamphetamine b. 1% adrenaline on the affected pupil. Patient B A heavy smoker with haemoptysis Answer The history and signs are indicative of a left apical lung tumour (Pancoast's tumour). This causes a pre-ganglionic Horner's syndrome. a. 1% hydroxyamphetamine will dilate the miosed pupil because the third order neurone is intact. b. 0.1% adrenaline will not dilate the miosed pupil because there is no denervation hypersensitivity.
