Copyright ©2013 Baishideng Publishing Group Co.
World J Gastroenterol. Jun 21, 2013; 19(23): 3543-3554
Published online Jun 21, 2013. doi: 10.3748/wjg.v19.i23.3543
Table 1 Differential diagnosis of cystic lesions in the liver
Monocytic disease
Simple cyst
Cystic echinococcosis
Alveolar echinococcosis
Polycystic disease
Autosomal dominant polycystic kidney disease
Autosomal dominant polycystic liver disease
Table 2 Ultrasonography features for the diagnosis of monocytic diseases of the liver
Simple cystCystic echinococcosisAlveolar echinococcosisCystadenoma and cystadenocarcinoma
BorderSharp and smoothLaminatedIrregularIrregular
ShapeSpherical or ovalRound or ovalIrregularRound or oval
Echo patternAnechoic1Anechoic or atypical2Hyperechogenic outer ring and hypoechogenic centreHypoechogenic with hyperechogenic septations
AppearanceNo septaMultiseptatedMultivesicularSeptated and/or solid structures (papillary projections)
WallStrong posterior wall echoesWall enhancement
Posterior acoustic featureRelative3 accentuation of echoesDorsal shadowing (calcified areas)Dorsal shadowing (calcified areas)
Table 3 Ultrasonography criteria for the diagnosis of autosomal dominant polycystic kidney disease
Family history positive1
Unknown genotype
Age (yr)
≥ 15 and ≤ 39≥ 3 unilateral renal cysts
≥ 40 and ≤ 59≥ 2 bilateral renal cysts
≥ 60≥ 4 bilateral renal cysts
Family history negative
> 10 bilateral renal cysts, with the exclusion of renal or extra-renal disease causing renal cysts