title: Solitary necrotic nodules of the liver mimicking hepatic metastasis: report of two cases.
abstract: We present two cases of solitary necrotic nodules of the liver which on radiologic images mimicked hepatic metastasis. Solitary necrotic nodule of the liver is a rare but benign entity which histopathologically consists of an outer fibrotic capsule with inflammatory cells and a central core of amorphous necrotic material. The lesion was seen on contrast-enhanced CT as an ovoid-shaped hypoattenuating nodule; on CT during hepatic arteriography as enhancing nodule; on intraoperative US as a target-appearing hypoechoic nodule; on T2WI as a hyperintensity nodule, and on dynamic MR as a subtle peripheral enhancing nodule. Although the radiologic features are not specific, solitary necrotic nodule of the liver should be included in the differential diagnosis of hepatic metastasis.
authors.affiliation: Department of Radiology, Wonkwang University School of Medicine, Iksan, Chunbuk, Korea. yoonkh@wmc.wonkwang.ac.kr
authors.forename: K H
authors.initials: KH
authors.lastname: Yoon
authors.forename: K J
authors.initials: KJ
authors.lastname: Yun
authors.forename: J M
authors.initials: JM
authors.lastname: Lee
authors.forename: C G
authors.initials: CG
authors.lastname: Kim
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008099:Liver / Q000473:pathology*; D008107:Liver Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D008113:Liver Neoplasms / Q000556:secondary*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009336:Necrosis; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography