Figure 1.

(a) The proband's (case 1) last MRI scan showing a visible thin rim of tissue around the pituitary fossa walls but no recurrent tumour. (b) A pituitary MRI scan of the proband's brother (case 2) at the time of diagnosis, showing a pituitary macroadenoma impinging the optic chiasma. (c) Case 2's follow-up MRI scan 7 years after the original surgery shows a small 5 mm region with reduced enhancement in the right side of the pituitary representing a remnant of the pituitary adenoma, which has recently grown slightly (d) and was operated.