case_images: PMC11722583_01
case_images: Abdominal ultrasound showing a right upper quadrant hypoechoic mass with an internal hyperechoic rim.
case_images: gr1.jpg
case_images: PMC11722583_01_gr1.jpg
case_images: f0005
case_images: Prenatal ultrasound performed at 32 weeks gestation showed a 2.9 x 2.4 x 2.9 cm cystic mass in the right upper quadrant, suspicious for a hepatic lesion (Fig. 1). Abdominal radiograph showed no distended loops of small bowel, signs of pneumoperitoneum or pneumatosis, while the ultrasound showed a 4.6 x 3.3 x 4.6 cm non-mobile, cystic mass containing fluid and air, with peripheral vascularity (Fig. 1).
case_images: Axial (a) and coronal (b) abdominal CT scan with intravenous contrast showing a right-sided heterogeneous abdominal mass filled with air and liquid, adjacent to the liver and small bowel.
case_images: gr2.jpg
case_images: PMC11722583_01_gr2.jpg
case_images: f0010
case_images: Given these findings, we performed a contrast-enhanced computed tomography (CT) scan, which showed a right-sided abdominal mass filled with air and liquid (Fig. 2), suspicious of an intestinal duplication rather than a liver mass.
case_images: Gross examination of the intestine, with the distal ileum and ascending colon with a large perforation involving the base of the appendix.
case_images: gr3.jpg
case_images: PMC11722583_01_gr3.jpg
case_images: f0015
case_images: The distal ileum and the ascending colon were hyperemic, with a serosal tear and large perforation involving the base of the appendix (Fig. 3).
case_images: Resected segment including 10 cm distal ileum and the ascending colon with the cecum and perforated appendix.
case_images: gr4.jpg
case_images: PMC11722583_01_gr4.jpg
case_images: f0020
case_images: Gross examination of the specimen revealed a 14.5 cm-long segment of bowel with an attached 3.6 cm-long appendix (Fig. 4).