TY - JOUR
T1 - Uncommon neoplasms of the biliary tract
T2 - Radiological Findings
AU - Granata, Vincenza
AU - Fusco, Roberta
AU - Catalano, Orlando
AU - Filice, Salvatore
AU - Avallone, Antonio
AU - Piccirillo, Mauro
AU - Leongito, Maddalena
AU - Palaia, Raffaele
AU - Grassi, Roberto
AU - Izzo, Francesco
AU - Petrillo, Antonella
PY - 2017
Y1 - 2017
N2 - Objective: To report our cancer centre experience in the biliary tumours incidence other than cholangiocellular- carcinoma, emphasizing the radiological features. Methods: 197 patients with biliary disease undergoing Gd-EOB-DTPA-enhanced MRI were reviewed. Four radiologists evaluated retrospectively size, structure, anatomical site and signal intensity of lesions on MRI. Enhancement-pattern during the arterial-, portal-And late-phase on ultrasound, CT and MR study was assessed as well as the enhancement pattern during the hepatobiliary- phase on MRI. Results: 23 patients were selected. The lesion was intraductal in 5 cases, periductal in 14 and intrahepatic in 4. 16 lesions were solid, 5 uniloculated cystic and 2 complex cystic. In five patients the lesion was simple cyst, with a signal intensity in T1 weighted (T1W) and T2 weighted (T2W) similar to the gallbladder. In two patients with complex cystic lesion, the solid component was heterogeneously hypointense in T1 W, hyperintense in T2 W with a restricted diffusion. The solid component showed heterogeneous contrast-enhancement on CT, MR and ultrasound. The tumour was intrahepatic in two patients, with signal hypointense in T1 W and hyperintense in T2 W. Diffusion was restricted. The lesions showed heterogeneous contrast-enhancement. The periductal lesions were hypointense in T1 W, hyperintense in T2 W with restricted diffusion. The lesion showed progressive contrast-enhancement. Peribiliary melanoma was hyperintense in T1 W, hyperintense in T2 W with restricted diffusion and progressively contrast-enhanced. Conclusion: Biliary tumours can have a wide spectrum of radiologic appearances and consequently represent a diagnostic challenge for the radiologist. Advances in knowledge: MRI is the technique of choice in diagnosing biliary tumours, including rare (non-CCC) tumours.
AB - Objective: To report our cancer centre experience in the biliary tumours incidence other than cholangiocellular- carcinoma, emphasizing the radiological features. Methods: 197 patients with biliary disease undergoing Gd-EOB-DTPA-enhanced MRI were reviewed. Four radiologists evaluated retrospectively size, structure, anatomical site and signal intensity of lesions on MRI. Enhancement-pattern during the arterial-, portal-And late-phase on ultrasound, CT and MR study was assessed as well as the enhancement pattern during the hepatobiliary- phase on MRI. Results: 23 patients were selected. The lesion was intraductal in 5 cases, periductal in 14 and intrahepatic in 4. 16 lesions were solid, 5 uniloculated cystic and 2 complex cystic. In five patients the lesion was simple cyst, with a signal intensity in T1 weighted (T1W) and T2 weighted (T2W) similar to the gallbladder. In two patients with complex cystic lesion, the solid component was heterogeneously hypointense in T1 W, hyperintense in T2 W with a restricted diffusion. The solid component showed heterogeneous contrast-enhancement on CT, MR and ultrasound. The tumour was intrahepatic in two patients, with signal hypointense in T1 W and hyperintense in T2 W. Diffusion was restricted. The lesions showed heterogeneous contrast-enhancement. The periductal lesions were hypointense in T1 W, hyperintense in T2 W with restricted diffusion. The lesion showed progressive contrast-enhancement. Peribiliary melanoma was hyperintense in T1 W, hyperintense in T2 W with restricted diffusion and progressively contrast-enhanced. Conclusion: Biliary tumours can have a wide spectrum of radiologic appearances and consequently represent a diagnostic challenge for the radiologist. Advances in knowledge: MRI is the technique of choice in diagnosing biliary tumours, including rare (non-CCC) tumours.
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U2 - 10.1259/bjr.20160561
DO - 10.1259/bjr.20160561
M3 - Article
C2 - 28731820
AN - SCOPUS:85030750303
VL - 90
JO - British Journal of Radiology
JF - British Journal of Radiology
SN - 0007-1285
IS - 1078
M1 - 20160561
ER -