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Figure 1. 47-year-old man with acute onset of left-upper abdominal pain. (a) Longitudinal ultrasonogram shows a multinodular mass with mixed echogenicity (arrows) at the centre of abdomen. (b) Non-contrast CT scan reveals nodular mass with high attenuation, indicating acute haemorrhage (arrows). (c) Coronal reformatted contrast-enhanced CT scan shows a multinodular mass (arrows), including an area of central enhancement (arrowheads) along the root of the small bowel mesentery. Note the increased mesenteric infiltrations and thickening of the jejunal wall (*). (d) Coronal reformatted follow-up CT scan obtained 20 days after the initial CT scan shows that internal haemorrhage in the mass has liquefied and overall tumour size (arrows) has decreased. (e) Photomicrograph from the specimen of mesenteric mass shows that the yellow-green birefringence of the amyloid deposits have strong affinity for the Congo red stain (arrows). Note the amyloid deposits in the wall of blood vessels (B).
