Hepatocellular carcinoma depicted as hypoattenuation on CT hepatic arteriography (CTA) and hyperattenuation on CT during arterial portography (CTAP).

Hirano K, Kondo Y, Teratani T, Obi S, Fujishima T, Hoshida Y, Tateishi R, Sato S, Koike Y, Shiina S, Imai Y, Shiratori Y, Omata M.

J Gastroenterol. 2001 May;36(5):346-9.
PMID: 11388399 [PubMed – indexed for MEDLINE]