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Titolo:
CT and MR imaging of benign hepatic and biliary tumors
Autore:
Horton, KM; Bluemke, DA; Hruban, RH; Soyer, P; Fishman, EK;
Indirizzi:
Johns Hopkins Hosp, Dept Radiol, Baltimore, MD 21287 USA Johns Hopkins Hosp Baltimore MD USA 21287 Radiol, Baltimore, MD 21287 USA Johns Hopkins Hosp, Dept Pathol, Baltimore, MD 21287 USA Johns Hopkins Hosp Baltimore MD USA 21287 Pathol, Baltimore, MD 21287 USA Hosp Lariboisiere, Dept Body & Vasc Imaging, Paris, France Hosp Lariboisiere Paris France Dept Body & Vasc Imaging, Paris, France
Titolo Testata:
RADIOGRAPHICS
fascicolo: 2, volume: 19, anno: 1999,
pagine: 431 - 451
SICI:
0271-5333(199903/04)19:2<431:CAMIOB>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
FOCAL NODULAR HYPERPLASIA; MESENCHYMAL HAMARTOMA; CAVERNOUS HEMANGIOMAS; LIVER-DISEASE; HEMANGIOENDOTHELIOMA; DIFFERENTIATION; DIAGNOSIS; CHILDHOOD; ADENOMAS; EFFICACY;
Keywords:
bile ducts, CT; bile ducts, MR; bile ducts, neoplasms; liver neoplasms; liver neoplasms, CT; liver neoplasms, diagnosis; liver neoplasms, MR;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: Fishman, EK Johns1287kins Hosp, Dept Radiol, 601 N Caroline St,Rm 3251, Baltimore, MD 2 Johns Hopkins Hosp 601 N Caroline St,Rm 3251 Baltimore MD USA21287
Citazione:
K.M. Horton et al., "CT and MR imaging of benign hepatic and biliary tumors", RADIOGRAPHI, 19(2), 1999, pp. 431-451

Abstract

Benign hepatic and biliary tumors can present a difficult diagnostic challenge, Spiral computed tomography (CT) and magnetic resonance (MR) imaging are useful in the detection and characterization of these tumors. Imaging characteristics of lesions such as hepatic cyst, hemangioma, focal nodular hyperplasia (FNH), and hepatic adenoma are well known. Hepatic cysts demonstrate water attenuation at CT, are isointense relative to water at MR imaging, and do not enhance after intravenous administration Of contrast material. Hemangiomas demonstrate characteristic nodular peripheral enhancement on early-phase images with subsequent fill-in centrally at both modalities. FNHclassically demonstrates intense early enhancement with washout on delayedimages. Although hepatic adenoma can also demonstrate intense early enhancement, it has a tendency to bleed and thus often appears more heterogeneousthan FNH due to hemorrhage, Benign hepatic tumors that are less well described in the imaging literature include hepatic lipoma or angiomyolipoma, infantile hemangioendothelioma, and mesenchymal hamartoma, Hepatic lipoma hasfat attenuation at CT, is isointense relative to fat at MR imaging, and does not enhance after intravenous administration of contrast material. Hepatic angiomyolipomas contain a variable amount of soft tissue in addition to fat and may therefore demonstrate enhancement at both modalities. The CT and MR imaging appearances of infantile hemangioma are similar to those of adult hemangioma, Infantile hemangioendothelioma occurs in infants under 6 months of age and is typically a larger lesion. Mesenchymal hamartoma also occurs in children, and its imaging appearance depends on the presence of stromal elements and the protein content of the cyst fluid. Familiarity with these imaging features can help distinguish particular disease entities.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/09/20 alle ore 19:05:43