Retained surgical sponge of the liver on computed tomography

Unenhanced computed tomography of the abdomen at level of liver shows a mass containing mixed areas of high and low attenuation (arrow).

Reproduced with permission from: Manoel de Souza Rocha. Originally published in Manzella A, Filho PB, Albuquerque E, et al. Imaging of gossypibomas: Pictorial review. AJR Am J Roentgenol 2009; 193:S94.

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