T1-weighted magnetic resonance imaging of the brain from case 2. Arrows point to the mass in all images. A, Coronal section of partially cystic sellar and suprasellar mass causing mass effect on the optic chiasm. The mass is medial to the right cavernous sinus. B, Sagittal cut showing the mass abutting the optic chiasm in the sella. C, Axial cut showing a well circumscribed mass in the sella.