Tuber cinereum hamartoma
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The tuber cinereum and left mammillary body show small solid mass lesion with iso intense T1, slightly hyperintense T2 / FLAIR signal. It measures about 1.2 X 1 cm in its main axial dimensions. The lesion shows no significant post-contrast enhancement. Normal right mammillary body.
The remainder of the brain is unremarkable.
Hypothalamic (tuber cinereum and left mammillary body) mass lesion; tuber cinereum hamartoma.
2 case questions available
The floor of the 3rd ventricle from the pituitary stalk till the mammillary bodies is called the tuber cinereum; it should be smooth. Any nodularity within should raise the suspicion of tuber cinereum (hypothalamic) hamartoma. Small, non-enhancing mass lesion contagious with the tuber cinereum is almost always diagnostic of tuber cinereum hamartoma.
- Amstutz DR, Coons SW, Kerrigan JF et-al. Hypothalamic hamartomas: Correlation of MR imaging and spectroscopic findings with tumor glial content. AJNR Am J Neuroradiol. 2006;27 (4): 794-8