RT Journal A1 Hu Y, Cohen HL, Scriven RJ T1 PIcture of the month—quiz case JF Archives of Pediatrics & Adolescent Medicine JO Archives of Pediatrics & Adolescent Medicine YR 2007 FD August 1 VO 161 IS 8 SP 773 OP 773 DO 10.1001/archpedi.161.8.773 UL http://dx.doi.org/10.1001/archpedi.161.8.773 AB A 13-year-old girl presented with 5 days of abdominal pain that originated in her right upper quadrant and progressed to her epigastrium. She denied experiencing nausea, vomiting, diarrhea, loss of appetite, fevers, or chills. She was afebrile. Her abdomen was tender to palpation in the midepigastrium, but without rebounding or guarding. White blood cell count and lipase and liver function test results were normal. Her weight was 64.7 kg (~ 90th percentile for age), and her height was 158 cm (~ 50th percentile). Figures 1 and 2 are images from her abdominal computed tomographic (CT) scan.