|
Fig 5. MR images of a 4-year-old girl with a constitutional ring 22 chromosome and AT/RT involving the septum pellucidum, with extension into the lateral ventricles.
A, Axial (TR/TE, 450/18) MR image shows the tumor to have intermediate signal intensity with several small zones of low signal intensity.
B, Axial (TR/TE, 4000/105) MR image shows the tumor to have heterogeneous predominantly intermediate-to-slightly-high signal intensity that is isointense to gray matter, as well as small zones of high and low signal intensity.
C, Axial (TR/TE, 450/31) MR image shows irregular heterogeneous contrast enhancement of less than two thirds of the primary AT/RT. This patient had subtotal resection of the tumor and subsequently had locally recurrent disease and disseminated leptomeningeal tumor. She died 14 months after surgery/initial diagnosis.
|