Indian J Med Microbiol

Figure 3: (a) Pituitary adenoma: "Squash smear": Monomorphic tumor cells with round nuclei and moderate cytoplasm. Numerous red blood cells (RBCs) in the background (H and E, ×400) (b) "Frozen section": Round cells with moderate cytoplasm (H and E, ×400) (c) "Frozen section": Columnar tumor cells arranged in sinusoidal pattern (H and E, ×400) (d) "Paraffin section" of the above case showing similar cells in sinusoidal pattern (H and E, ×200)

Figure 3: (a) Pituitary adenoma: