Therapeutically infarcted tumors: ct findings

The CT findings in 14 patients who underwent hepatic or renal embolizations are presented. In 11 patients who had postinfarction CT studies, linear, branching air collections were noted within the embolized tumor. In two patients the amount of air increased on later CT studies. This configuration of air suggested an abscess, but in no case was an abscess encountered. This air was located distal to the high density embolization material in four cases. In four cases the infarcted organ appeared denser due to "trapped contrast." The seven embolized livers did not change in size on follow-up examinations, while three renal tumors demonstrated variable size changes after embolization.
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