Abstract
Until recently hepatic infarcts were rarely diagnosed before autopsy and were nearly always fatal. Four cases of hepatic infarcts, three of them nonfatal, were diagnosed and followed by CT (three cases), sonography (two cases), arteriography (two cases), and sulfur colloid liver-spleen scan (one case). In three patients with multiple subsegmental hepatic infarcts, most of the lesions were round or oval and centrally located. Only a minority of the lesions were wedge-shaped and peripheral. The early lesion appears hypoechoic on sonography, and CT shows a poorly demarcated low-density region. Later, lesions become confluent with more distinct margins. Bile lakes are a late sequela of large infarcts. Gas formation within sterile infarcts is newly described in two cases. Hepatic infarcts have a variable appearance on CT and sonography and are not reliably distinguished from other lesions such as abscess or necrotic neoplasm.
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