In a woman presenting with amenorrhea headache, blurred vision and galactorrhea appropriate investigation:

A women presenting with headache, blurred vision and galactorrhea raises of a pituitary prolactinoma and so appropriate investigation would be: S prolactin (most important) TSH (as patients with hypothyroidism have elevated TRH which acts to stimulate the release of prolactin) X ray skull (shows space occupying lesion) MRI Contrast enhanced CT