Preschooler with hypertension and a right ureteropelvic junction obstruction

Gross pathology image of pheochromocytoma causing ureteropelvic junction obstruction
Sectioned gross pathological image shows an ovoid gray to tan mass surrounded by a thin fibrous capsule that is compressing the right ureter resulting in right hydroureteronephrosis.

The diagnosis was paraganglioma causing ureteropelvic junction obstruction.