<p><b>A</b>) Anatomical transverse T<sub>2</sub>-weighted MR images acquired with a rapid acquisition with refocused echoes (RARE) sequence and <b>B</b>) anatomical transverse T<sub>2</sub>*-weighted MR images acquired at increasing gradient echo times as indicated, from representative presenting with abdominal neuroblastoma. <b>C</b>) Note the rapidly decaying tumor signal intensity in the Th-MYCN mouse, compared to the more sustained tumor signal observed in the Th-<i>ALK<sup>F1174L</sup></i>/Th-<i>MYCN</i> mouse.</p
