Concomitant findings and clinical significance of a fluid crescent between the iliacus muscle and iliac bone on MRI.

Concomitant findings and clinical significance of a fluid crescent between the iliacus muscle and iliac bone on MRI. Acta Radiol. 2013 Mar 10; Authors: Eshed I, Liberman B, Inbar Y, Amitai M, Portnoy O, Hertz M, Apter S Abstract BackgroundSome routine magnetic resonance imaging (MRI) examinations show a thin line of fluid signal intensity along the iliac crest ("fluid crescent") between the iliacus muscle and the iliac bone. This fluid crescent has not been described before.PurposeTo evaluate the clinical context and significance of the fluid crescent.Material and MethodsMRI examinations of the abdomen and pelvis performed over 1 year were retrospectively reviewed twice for the presence of a fluid crescent. The relationship between the presence of a fluid crescent and associated abnormal findings, including ascites, iliopsoas compartment, and bone and soft tissue pathologies, was evaluated.ResultsForty-one out of 254 MRI studies (male:female ratio, 136:118; mean age, 42 years) demonstrated a fluid crescent (16%). Thirty-eight of them had associated MRI pathologies: edema of the hip muscles = 24, ascites = 11, iliac bone = 21, and iliopsoas compartment = 7. Correlations between the presence of a fluid crescent and pathological findings were highly significant (P
Source: Acta Radiologica - Category: Radiology Authors: Tags: Acta Radiol Source Type: research

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