Routine hepatic scintiangiography provides important additive information in the interpretation of the liver scintigram. In patients with hepatic neoplasms, arterialization ('tumor stain') occurs at the site of the lesion. Scintigraphy is a more sensitive method of detecting arterialization than radiopaque arteriography. This is an advantage over radiopaque arteriography. A normal scintigram and an abnormal scintiangiogram in a patient with a known primary neoplasm outside the liver suggest the probability of liver metastases, and a normal scintigram and a scintiangiogram make neoplastic involvement of the liver unlikely. The scintiangiogram is normal in early liver disease but reveals arterialization in chronic liver disease. Patients with abscess, cyst, or hematoma demonstrate decreased vascularity at the site of the lesion, although a circumferential rim of increased radioactivity may be seen in amoebic abscess and healing hematoma.
|Original language||English (US)|
|State||Published - 1976|
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