PMC3290021_01
Computed tomography of the abdomen showed target sign suggesting a jejunal intussusception.
crg-0006-0015-g01.jpg
PMC3290021_01_crg-0006-0015-g01.jpg
F1
Computed tomography of the abdomen demonstrated characteristic 'target sign' and proximal small bowel dilatation, strongly suggesting jejunal intussusception (fig. 1).
Surgical specimen. Resected ileal segment showing intussusception.
crg-0006-0015-g02.jpg
PMC3290021_01_crg-0006-0015-g02.jpg
F2
A diagnostic laparoscopy was done which revealed a large tumour arising from the antimesenteric margin of the jejunum, approximately 20 cm distal of the angle of Treitz (fig. 2, fig. 3).
Microscopic examination showed a dense aggregate of melanoma cells covered by intestinal epithelium (H&E, x200).
crg-0006-0015-g04.jpg
PMC3290021_01_crg-0006-0015-g04.jpg
F4
Macroscopic and microscopic examination, including immunohistochemistry, revealed a malignant melanoma 6 cm in diameter without local lymph node metastasis (fig. 4).