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AJR 2005; 184:1085-1090
© American Roentgen Ray Society

Original Report

Focal Eosinophilic Necrosis Versus Metastasis in the Liver: The Usefulness of Two-Phase Dynamic CT

Jin Hur1, Mi-Suk Park1, Jeong-Sik Yu1, Joon-Suk Lim1, Soon Won Hong2 and Ki Whang Kim1

1 Department of Diagnostic Radiology and Research Institute of Radiological Science, Yonsei University College of Medicine and YongDong Severance Hospital, 146-92, Dogok-Dong, Kangnam-Ku, Seoul 135-270, South Korea.
2 Department of Pathology, Yonsei University College of Medicine, Seoul, South Korea.

OBJECTIVE. The purpose of our study was to evaluate the usefulness of dual-phase dynamic CT in the differentiation of focal eosinophilic necrosis of the liver and metastasis.

CONCLUSION. Undetected isoattenuating lesions on arterial phase images that have an indistinct margin, a nonspherical shape, and a homogenous enhancement pattern on portal venous phase images suggest focal eosinophilic necrosis rather than metastasis. Two-phase dynamic CT was found to be useful at differentiating focal eosinophilic necrosis from metastasis.


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