Pediatric Teleradiology

History: Adolescent male with abdominal swelling.

Coronal 2D FIESTA (T2 weighted) image of the abdomen.
Coronal 2D FIESTA (T2 weighted) image of the abdomen.
Axial SSFSE (T2 weighted) of the abdomen.
Axial SSFSE (T2 weighted) image of the abdomen.

What is your diagnosis for this pediatric patient with abdominal swelling? What is your differential diagnosis for this MRI of the abdomen?

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