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Special Feature
February 1998

Radiological Case of the Month

Author Affiliations
 

BEVERLY P.WOODMD

Arch Pediatr Adolesc Med. 1998;152(2):201-202. doi:10.1001/archpedi.152.2.201

A 6-MONTH-OLD BOY was referred to our hospital for evaluation of a left upper quadrant abdominal mass. The infant was born of an uneventful pregnancy. Findings from several routine checkups after birth were normal. A few days before admission to the hospital, the mass, detected during a routine physical examination, was thought to be splenomegaly. There was no history of abdominal pain or fever. Physical examination disclosed an egg-sized, clearly definable, smooth, nontender mass in the left upper quadrant of the abdomen. The mass was unmovable.

Imaging procedures included an ultrasonographic and radiographic scan of the abdomen (Figure 1), and a urogram (Figure 2). Results of routine laboratory tests were normal. Tumor markers and catecholamine metabolites were determined by blood and urine samples. An operation easily removed a lobulated, well-encapsulated, retroperitoneal mass (Figure 3).

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