山田 有則¹, 斉藤 泰博^{1, 2}, 片田 竜司^{1, 2}, 峯田 昌之^{1, 2}, 長沢 研一^{1, 2}, 武内 周平^{1, 2}, 高橋 康二¹, 油野 民雄¹

Tomonori YAMADA¹, Yasuhiro SAITO^{1, 2}, Ryuji KATADA^{1, 2}, Masayuki MINETA^{1, 2}, Kenichi NAGASAWA^{1, 2}, Shuuhei TAKEUCHI^{1, 2}, Koji TAKAHASHI¹, Tamio ABURANO¹

¹旭川医科大学放射線科, ²旭川藤井病院

¹Department of Radiology, Asahikawa Medical College, ²Asahikawa Fujii Hospital

キーワード : CTAP, Nodular transformation , Systemic lupus erythematosus , Ultrasonography

Liver nodules were examined by US, CT, MRI, and CT during arterial portography (CTAP), CT arteriography (CTA), and ^99mTc-stannous colloid scintigraphy, and the imaging features of the nodules were as follows. The nodules increased radionuclide uptake on ^99mTc-stannous colloid scintigraphy. On ultrasonography, three nodules at S3, S5, and S6 showed hyperechogenicity, although many were not identified. Power Doppler mode showed rich vascularity within the hyperechoic nodules, and FFT analysis showed continuous wave. CTAP and CTA showed that the blood supply to the nodules was mainly portal. Pathologic evaluation showed definite nodular transformation, and a dilated portal vein was found within the large nodules. These findings clearly appear to reflect the pathologic features of the nodules.