Hepatic involvement of amyloidosis is common. Diffuse infiltration with hepatomegaly is a usual radiologic finding of hepatic amyloidosis. To our knowledge, this is the first case of amyloidosis involving the liver that presented as a mass.
Aged ; Amyloidosis/*radiography/ultrasonography ; Biopsy, Needle ; Contrast Media/diagnostic use ; Female ; Humans ; Liver Diseases/*radiography/ultrasonography ; *Tomography, X-Ray Computed

No abstract available.
Female ; Granuloma, Plasma Cell/*diagnosis/radiography/ultrasonography ; Humans ; Liver Diseases/*diagnosis/radiography/ultrasonography ; Middle Aged ; Tomography, X-Ray Computed

No abstract available.
Aged ; Bile Duct Diseases/pathology/*radiography/ultrasonography ; Female ; Hamartoma/pathology/*radiography/ultrasonography ; Humans ; Liver/ultrasonography ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Tomography, X-Ray Computed

No abstract available.
Adult ; Carcinoma, Hepatocellular/radiography/radionuclide imaging/ultrasonography ; Granuloma, Plasma Cell/pathology/*radiography/radionuclide imaging ; Humans ; Liver Diseases/pathology/*radiography/radionuclide imaging ; Liver Neoplasms/radiography/radionuclide imaging/ultrasonography ; Magnetic Resonance Imaging ; Male ; Tomography, X-Ray Computed

No abstract available.
Amyloidosis/*radiography/ultrasonography ; Bone Marrow Cells/pathology ; Echocardiography, Doppler ; Female ; Humans ; Liver Diseases/*radiography/ultrasonography ; Middle Aged ; Tomography, X-Ray Computed

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 ; Case Report ; Diagnosis, Differential ; Female ; Human ; Liver/*pathology ; Liver Diseases/*diagnosis/radiography/ultrasonography ; Liver Neoplasms/*secondary ; Magnetic Resonance Imaging ; Male ; Middle Age ; Necrosis ; Tomography, X-Ray Computed

No abstract available.
Aged ; Antigens, CD20/metabolism ; Antigens, CD3/metabolism ; Bile Duct Neoplasms/ultrasonography ; Female ; Humans ; Immunohistochemistry ; Liver Diseases/*pathology/radiography ; Pseudolymphoma/*pathology/radiography ; Tomography, X-Ray Computed

The application of ultrasound contrast agents (UCAs) is considered essential when evaluating focal liver lesions (FLLs) using ultrasonography (US). Microbubble UCAs are easy to use and robust; their use poses no risk of nephrotoxicity and requires no ionizing radiation. The unique features of contrast enhanced US (CEUS) are not only noninvasiveness but also real-time assessing of liver perfusion throughout the vascular phases. The later feature has led to dramatic improvement in the diagnostic accuracy of US for detection and characterization of FLLs as well as the guidance to therapeutic procedures and evaluation of response to treatment. This article describes the current consensus and guidelines for the use of UCAs for the FLLs that are commonly encountered in US. After a brief description of the bases of different CEUS techniques, contrast-enhancement patterns of different types of benign and malignant FLLs and other clinical applications are described and discussed on the basis of our experience and the literature data.
Contrast Media/chemistry/*diagnostic use ; Humans ; Liver Diseases/radiography/*ultrasonography ; Liver Neoplasms/radiography/*ultrasonography ; Phospholipids/chemistry/diagnostic use ; Practice Guidelines as Topic ; Sulfur Hexafluoride/chemistry/diagnostic use ; Tomography, X-Ray Computed

BACKGROUND/AIMS: To evaluate the diagnostic value of contrast (SonoVue(R)) enhancement ultrasonography (CEUS) and to compare this method with computed tomography (CT) and magnetic resonance imaging (MRI) in evaluating liver masses. METHODS: CEUS (n=50), CT (n=47), and MRI (n=43) were performed on 50 liver masses in 48 patients for baseline mass characterization. The most likely impression for each modality and the final diagnosis, based on the combined biopsy results (n=14), angiography findings (n=36), and clinical course, were determined. The diagnostic value of CEUS was compared to those of CT and MRI. RESULTS: The final diagnosis of the masses was hepatocellular carcinoma (n=43), hemangioma (n=3), benign adenoma (n=2), eosinophilic abscess (n=1), and liver metastasis (n=1). The overall diagnostic agreement with the final diagnosis was substantial for CEUS, CT, and MRI, with kappa values of 0.621, 0.763, and 0.784, respectively. The sensitivity, specificity, and accuracy were 83.3%, 87.5%, and 84.0%, respectively, for CEUS; 95.0%, 87.5%, and 93.8%, respectively, for CT; and 94.6%, 83.3%, and 93.0%, respectively for MRI. After excluding the lesions with poor acoustic sonographic windows, the sensitivity, specificity, and accuracy for CEUS were 94.6%, 87.5%, and 93.3%, respectively, with a kappa value of 0.765. CONCLUSIONS: If an appropriate acoustic window is available, CEUS is comparable to CT and MRI for the diagnosis of liver masses.
Adult ; Aged ; Contrast Media/diagnostic use ; Female ; Humans ; Liver Diseases/pathology/radiography/*ultrasonography ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Sensitivity and Specificity ; Tomography, X-Ray Computed

Hydatid disease (HD) is an endemic illness in many countries, and it poses an important public health problem that's influenced by peoples' socioeconomic status and migration that spreads this disease. Although rare, it may occur in any organ or tissue. The most common site is the liver (59-75%), followed in frequency by lung (27%), kidney (3%), bone (1-4%) and brain (1-2%). Other sites such as the heart, spleen, pancreas and muscles are very rarely affected. Unusual sites for this disease can cause diagnostic problems. This pictorial essay illustrates various radiological findings of HD in the liver, spleen, kidney, pancreas, peritoneal cavity, omentum, adrenal, ovary, lung, mediastinum and retroperitoneum. Familiarity with the imaging findings of HD may be helpful in making an accurate diagnosis and preventing potential complications.
Abdominal Cavity/parasitology/radiography ; Adolescent ; Adult ; Child ; Child, Preschool ; Contrast Media/administration & dosage ; Digestive System/pathology/radiography/ultrasonography ; Digestive System Diseases/diagnosis/parasitology ; Echinococcosis/*diagnosis/parasitology/*radiography ; Endocrine Glands/parasitology/radiography ; Female ; Humans ; Kidney/parasitology/pathology ; Liver/parasitology/radiography ; Lung/parasitology/radiography ; Magnetic Resonance Imaging/methods ; Male ; Mediastinum/parasitology/radiography ; Middle Aged ; Pancreas/parasitology/radiography ; Radiographic Image Enhancement/methods ; Spleen/parasitology/radiography ; Tomography, X-Ray Computed/methods