title: Colloid shift following blunt trauma.
abstract: Thirty-three patients who underwent spleen imaging with [99mTc]sulfur colloid following blunt trauma to the left chest and/or left upper abdominal quadrant were evaluated. Nineteen of these patients were found to have reversed liver-spleen activity ratios (colloid shift). The incidence of this finding was surprising in view of the absence of any predisposing factors in these patients. Colloid shift was seen as early as 2 hr after trauma and was found to persist as long as 188 days after the traumatic event. The explanation for colloid shift in this group of patients is unknown, but the results suggest that it is secondary to reticuloendothelial system stimulation.
mesh_terms: D006801:Humans; D008099:Liver / Q000000981:diagnostic imaging*; D011877:Radionuclide Imaging; D012189:Retrospective Studies; D013154:Spleen / Q000000981:diagnostic imaging* / Q000293:injuries; D013671:Technetium Tc 99m Sulfur Colloid; D013997:Time Factors; D014949:Wounds, Nonpenetrating / Q000000981:diagnostic imaging*
chemical_list: D013671:Technetium Tc 99m Sulfur Colloid