Fluid levels appearances are not uncommon findings in different diagnostic modalities including radiography, ultrasound, computed tomography, and magnetic resonance imaging. The significance of such signs varies according to the involved sites and the clinical settings. Familiarity with their imaging features and their diagnostic value as well as their clinical implication are of paramount importance for the radiologist and the clinician. We aim to review a spectrum of examples of fluid levels encountered with different modalities in paediatric imaging and discuss their appearances and clinical significances.
NovellineR.A.Squire's Fundamentals of Radiology 6th ed. 2004Harvard University PressBoston
2.
HideI.G.Fluid levels in medical imagingClin Radiol2007; 62:1216–1222.
3.
ParkE.A.ChoJ.Y.LeeM.W.MR features of fluid-fluid levels in ovarian massesEur Radiol2007; 17:3247–3254.
4.
TaranathA.OnikulE.Fluid-fluid levels in transcalvarial Langerhans cell histiocytosisPediatr Radiol2004;34:363
5.
AbrahamsJ.J.LidovM.ArtilesC.MR imaging of intracranial fluid levelsAJR Am J Roentgenol1989; 153:597–604.
6.
KoşucuP.AhmetoğluA.CayA.Computed tomography evaluation of cavitary necrosis in complicated childhood pneumoniaAustralas Radiol2004; 48:318–323.
7.
MoellerK.H.Rosado-de-ChristensonM.L.TempletonP.A.Mediastinal mature teratoma: imaging featuresAJR Am J Roentgenol1997; 169:985–990.
8.
ThompsonW.M.KilaniR.K.SmithB.B.Accuracy of abdominal radiography in acute small bowel obstruction: does reviewer experience matter?AJR Am J Roentgenol2007; 188:W233–W238.
9.
HuiG.C.AmaralJ.StephensD.Gas distribution in intra-abdominal and pelvic abscesses on CT is associated with drainabilityAJR Am J Roentgenol2005; 184:915–919.
10.
Van DyckP.VanhoenackerF.M.VogelJ.Prevalence, extension and characteristics of fluid-fluid levels in bone and soft tissue tumorsEur Radiol2006; 16:2644–2651.
11.
O'DonnellP.SaifuddinA.The prevalence and diagnostic significance of fluid-fluid levels in focal lesions of boneSkeletal Radiol2004; 33:330–336.
12.
TsaiJ.C.DalinkaM.K.FallonM.D.Fluid -fluid level: a nonspecific finding in tumors of bone and soft tissueRadiology1990; 175:779–782.
13.
DaviesA.M.Cassar-PullicinoV.N.GrimerR.J.The incidence and significance of fluid-fluid levels on computed tomography of osseous lesionsBr J Radiol1992; 65:193–198.
