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AJR 2004; 183:1333-1338
© American Roentgen Ray Society

Original Report

Hepatic Nodular Lesions Associated with Abnormal Development of the Portal Vein

Tonsok Kim1, Takamichi Murakami1, Eiji Sugihara1, Masatoshi Hori1, Kenji Wakasa2 and Hironobu Nakamura1

1 Department of Radiology, Osaka University Graduate School of Medicine, D1, 2-2 Yamadaoka, Suita City, Osaka 565-0871, Japan.
2 Department of Pathology, Osaka City University Medical School, 1-4-3 Asahimachi, Abenoku, Osaka City 545-8585, Japan.

OBJECTIVE. We reviewed the medical records including pathologic descriptions, CT images, MR images, and digital subtraction angiograms of three patients with hepatic lesions that were associated with abnormal development of the portal vein—patent ductus venosus or congenital absence of the portal vein—to clarify the imaging characteristics of these abnormalities.

CONCLUSION. Two-phase helical CT and MRI, including MR angiography and dynamic studies, are useful for the diagnosis of patent ductus venosus and congenital absence of the portal vein. MRI may more effectively reveal hepatic lesions than two-phase helical CT under such abnormal conditions in which the liver has only the arterial but not the portal blood supply.


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