Atypical teratoid rhabdoid tumor MRI

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

MRI

The initial diagnosis of a tumor is made with a radiographic study (MRI). MRI of the spine is usually performed. The AT/RT tumor often spreads to the spine. It is difficult to diagnosis AT/RT only from radiographic study; usually a pathologist must perform a cytological or genetic analysis.

Solid parts of the tumor often enhance with contrast MRI finding on T1 and T2 weighted images are variable. Pre-contrast T2 weighted images may show an iso-signal or slightly hyper-signal. Solid components of the tumor may enhance with contrast but do not always. MRI studies appear to be more able to pick up metastatic foci in other intracranial locations as well as intraspinal locations. Preoperative and followup studies are needed to detect metastatic disease.