1.Angiosarcoma.
The Korean Journal of Hepatology 2009;15(1):101-105
No abstract available.
Aged
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Hemangiosarcoma/*diagnosis/radiography/ultrasonography
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Humans
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Liver Neoplasms/*diagnosis/radiography/ultrasonography
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Male
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Tomography, X-Ray Computed
2.Imaging findings of mimickers of hepatocellular carcinoma.
Tae Kyoung KIM ; Eunchae LEE ; Hyun Jung JANG
Clinical and Molecular Hepatology 2015;21(4):326-343
Radiological imaging plays a crucial role in the diagnosis of hepatocellular carcinoma (HCC) as the noninvasive diagnosis of HCC in high-risk patients by typical imaging findings alone is widely adopted in major practice guidelines for HCC. While imaging techniques have markedly improved in detecting small liver lesions, they often detect incidental benign liver lesions and non-hepatocellular malignancy that can be misdiagnosed as HCC. The most common mimicker of HCC in cirrhotic liver is nontumorous arterioportal shunts that are seen as focal hypervascular liver lesions on dynamic contrast-enhanced cross-sectional imaging. Rapidly enhancing hemangiomas can be easily misdiagnosed as HCC especially on MR imaging with liver-specific contrast agent. Focal inflammatory liver lesions mimic HCC by demonstrating arterial-phase hypervascularity and subsequent washout on dynamic contrast-enhanced imaging. It is important to recognize the suggestive imaging findings for intrahepatic cholangiocarcinoma (CC) as the management of CC is largely different from that of HCC. There are other benign mimickers of HCC such as angiomyolipomas and focal nodular hyperplasia-like nodules. Recognition of their typical imaging findings can reduce false-positive HCC diagnosis.
Carcinoma, Hepatocellular/*diagnosis/radiography
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Diagnosis, Differential
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Hemangioma/complications/radiography/ultrasonography
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Hepatitis B/complications
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Humans
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Inflammation/radiography/ultrasonography
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Liver/radiography/ultrasonography
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Liver Cirrhosis/complications/radiography
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Liver Neoplasms/*diagnosis/radiography
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Magnetic Resonance Imaging
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Non-alcoholic Fatty Liver Disease/radiography/ultrasonography
3.Epithelioid hemangioendothelioma.
The Korean Journal of Hepatology 2009;15(2):222-226
5.A case of liver metastasis of gastric hepatoid adenocarcinoma.
Eun Hyoung JEONG ; Dong Hyun KIM ; Sung Ho MA ; Eui Jong CHUNG ; Sang Su BAE ; A Young PARK ; Hyung Jun CHU
The Korean Journal of Hepatology 2009;15(2):201-208
We report herein a case of hepatoid adenocarcinoma of the stomach with liver metastasis. Gastric carcinoma generally presents as adenocarcinoma and rarely shows a hepatoid pattern, which can produce alpha-fetoprotein (AFP). The stomach is one of the common sites at which hepatoid adenocarcinoma has been detected. A 75-year-old female patient was admitted to the hospital with a symptom of epigastric discomfort. Gastrofibroscopy revealed a large tumor occupying the greater curvature of the stomach body. The level of serum AFP was markedly increased. Abdominal computed tomography revealed multiple liver masses. Biopsy samples of the gastric lesion and liver masses finally confirmed her case as hepatoid adenocarcinoma in the stomach with liver metastasis. The AFP-producing gastric carcinoma needs special attention because it often presents with early liver metastasis and has a poor prognosis.
Adenocarcinoma/*diagnosis/pathology/radiography
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Aged
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Female
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Gastroscopy
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Humans
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Liver Neoplasms/*diagnosis/secondary/ultrasonography
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Lymphatic Metastasis
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Stomach Neoplasms/*diagnosis/pathology/radiography
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Tomography, X-Ray Computed
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alpha-Fetoproteins/metabolism
6.Sclerosing hemangioma in the liver.
The Korean Journal of Hepatology 2011;17(3):242-246
7.Radiological Spectrum of Hepatic Mesenchymal Hamartoma in Children.
Soung Hee KIM ; Woo Sun KIM ; Jung Eun CHEON ; Hye Kyung YOON ; Gyeong Hoon KANG ; In One KIM ; Kyung Mo YEON
Korean Journal of Radiology 2007;8(6):498-505
OBJECTIVE: A hepatic mesenchymal hamartoma is an uncommon benign tumor in children and little is known about the spectrum of its radiological features. The purpose of this study is to describe the spectrum of radiological features of a hepatic mesenchymal hamartoma in children. MATERIALS AND METHODS: Thirteen children with a pathologically confirmed hepatic mesenchymal hamartoma (M:F = 7:6; mean age, 3 years 2 months) were included in our study. Ultrasonography (US) was performed in nine patients including color and power Doppler US (n = 7). CT scans were performed in all patients. We evaluated the imaging findings of the hepatic mesenchymal hamartomas and the corresponding pathological features. RESULTS: Each patient had a single tumor (mean diameter: 13 cm [1.8-20 cm]). On CT and/or US, four patients (31%) had a "multiseptated cystic tumor", five patients (38%) had a " mixed solid and cystic tumor", and four patients (31%) had a "solid tumor." The septa of the cystic portion were thin in the multiseptated cystic tumors and irregularly thick in the mixed solid and cystic tumors as seen on US. On a post-contrast CT scan, solid portions or thick septa of the tumors showed heterogeneous enhancement. The amount of hepatocytes was significantly different among the three tumor groups according to the imaging spectrum (p = 0.042). CONCLUSION: A hepatic mesenchymal hamartoma in children can show a wide spectrum of radiological features, from a multiseptated cystic tumor to a mixed solid and cystic tumor, and even a solid tumor.
Child
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Child, Preschool
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Contrast Media/administration & dosage
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Female
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Hamartoma/*diagnosis
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Humans
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Infant
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Liver/*radiography/ultrasonography
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Liver Neoplasms/*diagnosis
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Male
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Mesoderm/*radiography/ultrasonography
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Observer Variation
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Radiographic Image Enhancement/methods
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Retrospective Studies
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Tomography, X-Ray Computed/methods
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Ultrasonography, Doppler, Color/methods
8.Solitary Necrotic Nodules of the Liver Mimicking Hepatic Metastasis: Report of Two Cases.
Kwon Ha YOON ; Ki Jung YUN ; Jung Min LEE ; Chang Guhn KIM
Korean Journal of Radiology 2000;1(3):165-168
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 cap-sule with inflammatory cells and a central core of amorphous necrotic material. The lesion was seen on contrast-enhanced CT as an ovoid-shaped hypoattenu-ating nodule; on CT during hepatic arteriography as enhancing nodule; on intra-operative US as a target-appearing hypoechoic nodule; on T2WI as a hyperinten-sity 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.
Aged
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Case Report
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Diagnosis, Differential
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Female
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Human
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Liver/*pathology
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Liver Diseases/*diagnosis/radiography/ultrasonography
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Liver Neoplasms/*secondary
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Magnetic Resonance Imaging
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Male
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Middle Age
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Necrosis
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Tomography, X-Ray Computed
9.Recent advances in the imaging of hepatocellular carcinoma.
Myung Won YOU ; So Yeon KIM ; Kyoung Won KIM ; So Jung LEE ; Yong Moon SHIN ; Jin Hee KIM ; Moon Gyu LEE
Clinical and Molecular Hepatology 2015;21(1):95-103
The role of imaging is crucial for the surveillance, diagnosis, staging and treatment monitoring of hepatocellular carcinoma (HCC). Over the past few years, considerable technical advances were made in imaging of HCCs. New imaging technology, however, has introduced new challenges in our clinical practice. In this article, the current status of clinical imaging techniques for HCC is addressed. The diagnostic performance of imaging techniques in the context of recent clinical guidelines is also presented.
Carcinoma, Hepatocellular/*diagnosis/radiography/ultrasonography
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Contrast Media/chemistry
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Ferric Compounds/chemistry
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Humans
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Iron/chemistry
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Liver Neoplasms/*diagnosis/radiography/ultrasonography
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Magnetic Resonance Imaging
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Meglumine/analogs & derivatives/chemistry
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Organometallic Compounds/chemistry
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Oxides/chemistry
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Tomography, X-Ray Computed
10.Early Diagnosis of Hepatocellular Carcinoma Using lmaging Modalities.
Yonsei Medical Journal 1988;29(2):101-108
Hepatocellular carcinoma (HCC) is one of the most frequent primary malignancies in the world, and, particularly, it is common in the Far East. In the world, more than one million new cases of HCC are seen each year. The prognosis of patients with HCC is extremely poor with an average survival of about six months following the diagnosis. In order to improve the prognosis of HCC, early diagnosis should be attempted utilizing mass screening methods. Screening of a high-risk population with alpha-fetoprotein (AFP) along with non-invasive medical imaging modalities will lead to early diagnosis of HCC and subsequent improvement of survival. Indeed, recent advances in medical imaging techniques have increased the rate of detection of small HCCs, and such imaging modalities include ultrasonography(US), radionuclide imaging(RNI), computed tomography(CT), magnetic resonance imaging(MRI), and angiography. Each imaging method is reviewed with special emphasis on the early diagnosis of HCC.
Adult
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Aged
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Carcinoma, Hepatocellular/*diagnosis
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Case Report
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Comparative Study
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False Negative Reactions
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Female
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Hepatic Artery/radiography
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Human
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Liver/pathology/radiography/radionuclide imaging
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Liver Neoplasms/*diagnosis
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Magnetic Resonance Imaging
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Male
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Time Factors
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Tomography, X-Ray Computed
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Ultrasonography