Figure 1. (A) Enlargement of the pituitary gland in the sella turcica. (B) Sagittal section of the pituitary gland (fixed in 10% buffered formaldehyde), in the anterior lobe, an extensive hemorrhagic area is observed. (C) Photomicrograph of pituitary adenoma with hemorrhagic and cystic areas (H&E, × 20).