No abstract available.
Carcinoma, Hepatocellular/*radiography ; Diagnosis, Differential ; Hepatic Artery/*radiography ; Humans ; *Liver Circulation ; Liver Neoplasms/*radiography ; Male ; Middle Aged ; Portal Vein/*radiography

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 ; Diagnosis, Differential ; Hemangioma/complications/radiography/ultrasonography ; Hepatitis B/complications ; Humans ; Inflammation/radiography/ultrasonography ; Liver/radiography/ultrasonography ; Liver Cirrhosis/complications/radiography ; Liver Neoplasms/*diagnosis/radiography ; Magnetic Resonance Imaging ; Non-alcoholic Fatty Liver Disease/radiography/ultrasonography

No abstract available.
Aged ; Hemangiosarcoma/*diagnosis/radiography/ultrasonography ; Humans ; Liver Neoplasms/*diagnosis/radiography/ultrasonography ; Male ; Tomography, X-Ray Computed

Hepatocellular carcinoma (HCC) rarely invades the gastrointestinal (GI) tract. It occurs in 0.7% to 2% of clinical HCC cases. Moreover, gastric invasion with GI hemorrhage via peritoneal seeding is very rare. We report the case of 67-year-old woman who had a history of HCC rupture and was admitted due to left upper quadrant abdominal pain. The patient was diagnosed with three omental metastatic masses and underwent hepatic segmentectomy and omental tumorectomy. Two months later, the patient had massive melena, and an esophagogastroduodenoscopy showed very large ulcerated friable mass on the gastric body. The histology was consistent with the diagnosis of metastatic HCC. The patient died from persistent GI hemorrhage 93 days after the admission. This case illustrates the very rare event of peritoneal seeding of a ruptured HCC causing direct invasion of the stomach, followed by GI hemorrhage.
Aged ; Carcinoma, Hepatocellular/*diagnosis/radiography/secondary ; Female ; Gastrointestinal Hemorrhage/*diagnosis/etiology/radiography ; Gastroscopy ; Humans ; Liver Neoplasms/*diagnosis/pathology/radiography ; *Neoplasm Seeding ; Peritoneal Neoplasms/*diagnosis/radiography/secondary ; Stomach Neoplasms/*diagnosis/radiography/secondary ; Tomography, X-Ray Computed

No abstract available.
Adult ; Breast Neoplasms/diagnosis ; Carcinoma, Hepatocellular/diagnosis ; Eosinophilia/*diagnosis/radiography ; Eosinophils/immunology/metabolism ; Female ; Humans ; Liver Abscess/*radiography/ultrasonography ; Liver Neoplasms/diagnosis ; Male ; Middle Aged

No abstract available.
Adult ; Hemangioendothelioma, Epithelioid/diagnosis/*radiography/ultrasonography ; Humans ; Liver Neoplasms/diagnosis/*radiography/ultrasonography ; Male ; Tomography, X-Ray Computed

Primary hepatic carcinosarcoma which has comprised of a mixture of both carcinomatous and sarcomatous elements is very rare. This tumor has been variously called as carcinosarcoma, pleomorphic large cell carcinoma, giant cell carcinoma, or undifferentiated carcinoma. Only less than 20 cases of carcinosarcoma of the liver have been reported sporadically up to now worldwide. Herein, we present a case of carcinosarcoma of the liver along with a review of the literatures.
Aged ; Carcinosarcoma/*diagnosis/pathology/radiography ; Female ; Humans ; Liver Neoplasms/*diagnosis/pathology/radiography ; Mastectomy, Segmental ; Tomography, X-Ray Computed ; Vimentin/metabolism

No abstract available.
Angiomyolipoma/*diagnosis/radiography/surgery ; Humans ; Liver Neoplasms/*diagnosis/radiography/surgery ; Male ; Middle Aged ; Tomography, X-Ray Computed

No abstract available.
Carcinoma, Hepatocellular/*diagnosis/pathology ; Cholangiocarcinoma/*diagnosis/pathology ; Humans ; Liver Neoplasms/*diagnosis/pathology/radiography ; Male ; Middle Aged ; Neoplasms, Multiple Primary/*diagnosis/pathology/radiography ; Tomography, X-Ray Computed

OBJECTIVE: To assess the value of applying MultiVane to liver T2-weighted imaging (T2WI) compared with conventional T2WIs with emphasis on detection of focal liver lesions. MATERIALS AND METHODS: Seventy-eight patients (43 men and 35 women) with 86 hepatic lesions and 20 pancreatico-biliary diseases underwent MRI including T2WIs acquired using breath-hold (BH), respiratory-triggered (RT), and MultiVane technique at 3T. Two reviewers evaluated each T2WI with respect to artefacts, organ sharpness, and conspicuity of intrahepatic vessels, hilar duct, and main lesion using five-point scales, and made pairwise comparisons between T2WI sequences for these categories. Diagnostic accuracy (Az) and sensitivity for hepatic lesion detection were evaluated using alternative free-response receiver operating characteristic analysis. RESULTS: MultiVane T2WI was significantly better than BH-T2WI or RT-T2WI for organ sharpness and conspicuity of intrahepatic vessels and main lesion in both separate reviews and pairwise comparisons (p < 0.001). With regard to motion artefacts, MultiVane T2WI or BH-T2WI was better than RT-T2WI (p < 0.001). Conspicuity of hilar duct was better with BH-T2WI than with MultiVane T2WI (p = 0.030) or RT-T2WI (p < 0.001). For detection of 86 hepatic lesions, sensitivity (mean, 97.7%) of MultiVane T2WI was significantly higher than that of BH-T2WI (mean, 89.5%) (p = 0.008) or RT-T2WI (mean, 84.9%) (p = 0.001). CONCLUSION: Applying the MultiVane technique to T2WI of the liver is a promising approach to improving image quality that results in increased detection of focal liver lesions compared with conventional T2WI.
Adult ; Aged ; Aged, 80 and over ; Artifacts ; Biliary Tract Diseases/diagnosis/radiography ; Female ; Humans ; Liver Diseases/*diagnosis/radiography ; Liver Neoplasms/*diagnosis/pathology/radiography ; *Magnetic Resonance Imaging ; Male ; Middle Aged ; Pancreatic Diseases/diagnosis/radiography ; Retrospective Studies