Research ArticleSHORT COMMUNICATION

Pituitary Incidentaloma Found on O-(2-18F-Fluoroethyl)-l-Tyrosine PET

Geoffrey M. Currie, Marko Trifunovic, Hosen Kiat, Catherine Saunders, David Chung, Yang-Yi Ong, Mark Wilkinson, Karin Witte and John Magnussen
Journal of Nuclear Medicine Technology September 2014, 42 (3) 218-222; DOI: https://doi.org/10.2967/jnmt.113.136291

Article Figures & Data

Figures

  • FIGURE 1.
    FIGURE 1.

    Axial T1-weighted fat-saturation post-gadolinium MR image highlighting enhancing mass.

  • FIGURE 2.
    FIGURE 2.

    18F-FDG PET scan (left) demonstrating mild 18F-FDG avidity (arrow) in parietal lesion noted on CT (center). PET/CT image coregistration (not shown) revealed no uptake in areas of edema on CT and MR imaging, with subtly increased 18F-FDG accumulation corresponding to described lesion. 18F-FDG accumulation in pituitary (right) on PET confirms that activity is localized to pituitary.

  • FIGURE 3.
    FIGURE 3.

    18F-FET PET scan (left) showing enhanced tracer localization in parietal lesion noted on MR imaging and 18F-FDG PET (not shown). Sagittal slices through pituitary demonstrate moderate to intense 18F-FET accumulation (arrow) in pituitary (center) on PET and enlarged pituitary on MR imaging (right).

  • FIGURE 4.
    FIGURE 4.

    MR imaging slices after (left [coronal view] and center [sagittal view]) and before (right) gadolinium administration showing enlargement and enhancement of pituitary.

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