Fig 8. MR images of an 8-month-old female infant with AT/RT involving the pineal gland

A, Axial (TR/TE, 4000/105) MR image shows the tumor to have heterogeneous intermediate-to-slightly-high signal intensity with regions that are isointense and slightly hyperintense to gray matter, as well as a small zone of high signal intensity.

B, Axial FLAIR (TR/TE/TI, 9000/119/2200) MR image shows the tumor to have mostly intermediate signal intensity that is isointense to gray matter.

C, Axial (TR/TE, 800/20) fat-suppressed MR image with magnetization transfer shows no contrast enhancement of the primary lesion. This patient had subtotal resection of the primary lesion followed by chemotherapy. The patient had subsequent local recurrence and disseminated leptomeningeal tumor and died 7 months after initial diagnosis.