case_images: PMC10775730_01
case_images: Pituitary magnetic resonance images of the patient. a) Image showing enlargement of the sella turcica, with a well-defined left-sided lesion measuring 13 x 11 x 16 mm. The tumor was having a mass effect on the optic chiasm and pituitary stalk. It was also in contact with the left internal carotid artery, which remained permeable and of normal diameter. The pituitary stalk was thin and displaced to the right. b) The lesion extended to the suprasellar space, was rounded, and showed a heterogenous hypersignal on T1-weighted examination. It did not show enhancement following the injection of gadolinium, but showed punctuate anomalies, owing to intrasellar bleeding. The tumor extended to the roof of the sphenoid sinus and c) The normal hypersignal of the posterior hypophysis was not visible.
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case_images: PMC10775730_01_10.1177_03000605231223033-fig1.jpg
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case_images: Pituitary MRI examination revealed an intra and suprasellar mass measuring 13 x 11 x 16 mm that included hemorrhagic necrosis and had a discrete mass effect on her optic chiasm and pituitary stalk (Figure 1).
case_images: Hematoxylin and eosin-stained section through the patient's tumor. Magnification x20. Xanthogranuloma, with a polymorphous inflammatory infiltrate composed of lymphocytes and plasma cells, as well as numerous xanthoma cells (arrow).
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case_images: It was composed of lymphocytes, plasma cells, and multinucleated macrophagic giant cells, as well as foamy histiocytes with clear cytoplasm (Figures 2 and 3).
case_images: Hematoxylin and eosin-stained section through the patient's tumor. Magnification x40. Foreign body-like multinucleate giant cells (arrow) in contact with cholesterol clefts (star) are visible.
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case_images: PMC10775730_01_10.1177_03000605231223033-fig3.jpg
case_images: fig3-03000605231223033
case_images: It was composed of lymphocytes, plasma cells, and multinucleated macrophagic giant cells, as well as foamy histiocytes with clear cytoplasm (Figures 2 and 3).