case_images: PMC4531716_01
case_images: Simple skull view show no pituitary fossa enlargement.
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case_images: Plain skull X-ray film of the sella was normal (Figure 1).
case_images: Pituitary fossa MRI show isodense signal intensity mass occupying the pituitary fossa and infundibular thickening.
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case_images: Magnetic resonance image (MRI) scan showed isodense signal intensity mass lesion in pituitary fossa with infundibular thickening and no enhancement of RCC with dynamic study was observed (Figure 2).
case_images: HE staining (x 100) shows mixed inflammatory cell infiltration in the loose stroma.
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case_images: Focally remained columnar epithelial walls were noted and cytokeratin immunohistochemical staining revealed monolayered columnar epithelium in the cyst wall (Figure 3, 4).
case_images: Cytokeratin immunohistochemical staining (x200) reveals monolayered columnar epithelium in the cyst wall.
case_images: kjim-16-2-132-14f4.jpg
case_images: PMC4531716_01_kjim-16-2-132-14f4.jpg
case_images: f4-kjim-16-2-132-14
case_images: Focally remained columnar epithelial walls were noted and cytokeratin immunohistochemical staining revealed monolayered columnar epithelium in the cyst wall (Figure 3, 4).