FIGURE LEGENDS
Fig.1 (A, B, C): MRI with contrast of sphenoid sinus and pituitary gland in sagittal (A), transverse (B), and coronary (C) sections showing a mass in the clivus with moderate enhancement and peripheral calcifications.
Fig.2 (A, B, C, D): Endoscopic images of transsphenoidal surgery showing the neoplastic mass adjacent to the intact pituitary gland (A), the neoplastic mass adjacent to both the right and left ICAs (B, C), and the pituitary gland after complete resection of the mass (D).
Fig.3 (A, B, C, D, E, F): Histological images of the resected mass showing small nests of uniform small oval-to-polygonal-shaped cells surrounded by dense hyaline stroma (A, B), negative staining for synaptophysin, chromogranin, and CD56 respectively (C, D, E), positive staining for prolactin (F).