Figure 1
Axial CT images showing (A) SS seeds, incidentally found in the bowel (arrows), and (B) A seed impacted in the ileocecal valve (arrow), responsible for occlusion; Photograph (C) and CT (D) of SS; seed (dark arrow): maximum long diameter: 16 mm, high density of the shell (256 HU) and the midline linear hypodensity (92 HU).
Figure 2
CT differential diagnoses of SS seeds. Photograph/CT of Cowries (A/B) Maximum diameter of 17 mm, periphery: 1343 HU, core: –1024 HU; Adansonia digitata (C/D) Maximum diameter of 11 mm, periphery: 206 HU, core: –814 HU; and Ximenia americana (E/F) Maximum diameter of 12 mm, the periphery: 153 HU, core: –50 HU.