Exemplos de uso de Focal nodular em Inglês e suas traduções para o Português
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Focal Nodular hyperplasia and Hemangiomas.
On this occasion, we present the case of Focal Nodular hyperplasia and Hemangiomas.
The focal nodular hyperplasia shows the same finding in DISIDA.
They replace the previous so-called group of focal nodular teleangiectasic hyperplasia.
Focal nodular hyperplasia of the liver: a case report and review of the literature.
Benign neoplasms include hepatocellular adenoma,hepatic hemangioma and focal nodular hyperplasia.
Among benign liver tumors,hemangiomas and focal nodular hyperplasias are the most common non-cystic lesions.
In some studies, hemangiomas have been found in up to 25% of cases of focal nodular hyperplasia.
When there is no classic scar on the focal nodular hyperplasia, differentiation between the two entities is difficult.
Herman et al reported rate of diagnosis of HA in 90% of cases through imaging and in 77% in focal nodular hyperplasia.
Amongst benign liver lesions,hemangiomas and focal nodular hyperplasias FNH are the most common non-cystic lesions.
Already focal nodular hyperplasia, which have functioning Kupffer cells, can have the diagnosis made through it.
The more frequent benign tumors are hepatic hemangioma, focal nodular hyperplasia and hepatic adenoma.
Focal nodular hyperplasia FNH is defined as a nodule constituted by apparently normal hepatocytes, occurring in a liver with a normal histological aspect.
Differential diagnosis includes some forms of angiomas, focal nodular hyperplasia, hepatocellular carcinoma(see these terms), and certain types of liver metastases.
Focal nodular hyperplasia FNH is the second most frequent benign tumor of the liver, surpassed in prevalence only by hepatic hemangiomas, and corresponding to 8% of all the primary hepatic tumors.
Hemangiomas, also, may be associated with other hepatic lesions like cysts,hepatocellular adenomas Figure 7 and focal nodular hyperplasia, as well as Rendu-Osler-Weber syndrome.
Focal nodular hyperplasia(FNH) is the second most frequentbenign tumor of the liver, surpassed in prevalence only byhepatic hemangiomas, and corresponding to 8% of all the primaryhepatic tumors1.
The wide spectrum of diagnostic possibilities for HLL includes hemangiomas, focal nodular hyperplasias, hepatic adenomas, hepatocellular carcinoma and metastases from neuroendocrine tumors, among other lesions.
In relation to benign tumors, in two cases with radiological suspicion of adenomas,the diagnosis was confirmed in one case and the final diagnosis in the other patient operated was focal nodular hyperplasia.
To distinguish between the HA and focal nodular hyperplasia, scintigraphy with colloidal sulfur- which marks the cells of the reticuloendothelial system in the liver represented by Kupffer cells-, should be used.
The most common nontraumatic causes of spontaneous hepatic hemorrhage are hepatocellular carcinoma and hepatic adenoma, andit also may occur in patients with focal nodular hyperplasia, hemangioma, angiosarcoma and metastases.
It is noteworthy that the prevalence of focal nodular hyperplasia is 100 times higher in these patients with hereditary hemorrhagic telangiectasia than in the general population, information that can limit the number of unnecessary liver biopsies16,17.
Calcifications are found in about 50% of cases investigated by CT and almost exclusively in the regionof the central scar, differently from focal nodular hyperplasia where calcifications are extremely rare Figure 9.
With the use gadoxetic acid, focal nodular hyperplasia has an enhancement equal or greater than the liver parenchyma's during the hepatobiliary phase, whilst the hepatocellular adenoma does not significantly capture the contrast or exhibits only a peripheral halo.
The significance of making a specific diagnosis is that,unlike other benign liver tumors such as hemangioma and focal nodular hyperplasia, hepatic adenomas have a small but meaningful risk of progressing into a malignancy.
The biopsy may be unnecessary in many patients with the incorporation of magnetic resonance imaging with hepatic-specific contrast, which accurately diagnoses small focal nodular hyperplasias.
Typical features on HRCT images include the following: focal nodular and mass-like regions of consolidation; cavitation; nodules solitary or multiple with a surrounding rim of ground-glass opacity, referred to as the"halo" sign Figure 4; and pleural thickening.
The persistence of the contrast enhancement during the equilibrium phase is useful in the differentiation of hemangiomas from other hypervascular lesions such as focal nodular hyperplasia and some types of metastases presenting a more rapid wash out pattern.
This paper describes the main characteristics of hemangioma, focal nodular hyperplasia, adenoma, hepatocellular carcinoma, intrahepatic cholangiocarcinoma and hepatic metastasis observed at ultrasonography US computed tomography CT and magnetic resonance imaging MRI.