Ascites or pleural effusion? CT differentiation: four useful criteria.

Halvorsen RA, Fedyshin PJ, Korobkin M, Foster WL Jr, Thompson WM.
Department of Radiology, Veterans Administration Medical Center, Durham, NC 27705.

Radiographics. 1986 Jan;6(1):135-49

CT can accurately distinguish between ascites and pleural fluid if the four signs described here are all considered in each case. Used individually these signs may be indeterminate or misleading.

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