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Fig. 2 | Irish Veterinary Journal

Fig. 2

From: High-resolution fluorodeoxyglucose positron emission tomography and magnetic resonance imaging findings of a pituitary microtumor in a dog

Fig. 2

High-resolution MRI characteristics of a canine pituitary microtumor. Following initial 7 T MRI scan (a–c), a pituitary lesion was re-evaluated by 3 T MRI 6 months later (d–f). a Pre-contrast T1-WI showed the hypointense adenohypophyseal lesion (arrowhead), indicating a pituitary microtumor, and the hyperintense neurohypophysis (arrow). b Uniform contrast enhancement was observed on the neurohypophysis (arrow), while the adenohypophyseal lesion had no enhancement (arrowhead) on post-contrast T1-WI. c T2-WI revealed hyperintensity in the adenohypophyseal lesion (arrowhead) and isointensity in the neurohypophysis (arrow). At 6 month follow-up, MRI findings of the adenohypophyseal lesion (arrowhead) and the neurohypophysis (arrow) were not changed on pre- (d) and post- (e) contrast T1-WI and T2-WI (f), except for a slight increase in the size of the pituitary gland

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Irish Veterinary Journal

ISSN: 2046-0481