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FIGURE 303-1

FIGURE 303-2

FIGURE 303-3

FIGURE 303-4

FINDINGS Figure 303-1. Sagittal non-contrast T1WI. There is a broad-based isointense mass (arrow) in the region of the tuber cinereum. Figure 303-2. Coronal non-contrast T1WI in the same patient shows that the mass has exactly the same signal as the gray matter (GM) (arrow). Figure 303-3. Axial T2WI in a companion case. There is a mass within the suprasellar cistern of heterogeneous intensity containing some central hyperintensities (arrows). Figure 303-4. Sagittal post-contrast T1WI shows the extent of the nonenhancing mass (arrow).

DIFFERENTIAL DIAGNOSIS Hypothalamic-chiasmatic glioma, craniopharyngioma, germinoma, and Langerhans cell histiocytosis, hamartoma of tuber cinereum.

DIAGNOSIS Hamartoma of tuber cinereum (HTC).

DISCUSSION

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