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In addition, discrimination of synchronous lesions that have a different nature is also important knowing that up to 25–50% of liver lesions less than 2 cm detected in cancer patients may be benign . US sensitivity for metastases detection varies depending on the examiner's experience and the equipment used and ranges between 40 and 80% .
Nevertheless, in cases where a patient exhibits symptoms, when there are suspicions of an underlying malignancy following an inconclusive biopsy, or when a lesion demonstrates sustained growth, medical professionals commonly opt for a biopsy or surgical removal. Surgical resection remains the established and definitive course of treatment. [8]
[11] [7] On medical imaging and histopathological biopsy results they are the same as hepatic adenomas. [7] Liver cell adenomatosis differs from hepatic adenomas by its definition of more than 10 hepatic adenomas that are in both liver lobes in a person who does not have a glycogen storage disease and is not taking exogenous hormones. [7]
Transient hepatic attenuation differences (THAD) are areas of enhancement during the arterial phase of contrast CT of the liver. THAD is thought to be a physiological phenomenon resulting from regional variation in the blood supply by the portal vein and/or the hepatic artery.
The Liver Imaging Reporting and Data System (aka LI-RADS) is a quality assurance tool created and trademarked by the American College of Radiology in 2011 to standardize the reporting and data collection of CT and MR imaging patients at risk for hepatocellular carcinoma (HCC), or primary cancer of the liver cells. [1]
Nodular regenerative hyperplasia (NRH) is a rare liver disease, characterised by the growth of nodules within the liver, resulting in liver hyperplasia.While in many cases it is asymptomatic and thus goes undetected – or is only discovered incidentally while investigating some other medical condition – in some people it results in non-cirrhotic portal hypertension (NCPH).
Given that several liver tumors appear similarly on these imaging modalities, a multi-phase contrast-enhanced imaging study such as CT or MRI may be used to provide more information. [ 3 ] [ 4 ] The significance of making a specific diagnosis is that, unlike other benign liver tumors such as hemangioma and focal nodular hyperplasia, hepatic ...
A liver metastasis is a malignant tumor in the liver that has spread from another organ that is affected by cancer. The liver is a common site for metastatic disease because of its rich, dual blood supply (the liver receives blood via the hepatic artery and portal vein). Metastatic tumors in the liver are 20 times more common than primary liver ...