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Sonographic Mimics of Renal Calculi

Multan Institute of Nuclear Medicine and Radiotherapy, Nishtar Hospital, Multan, Pakistan (D.-e.-S.); North Manchester General Hospital, Manchester, England (A.N.K.); author/consultant, Tucson Arizona, USA (M.C.); and The Fairbanks Clinic, Fairbanks, Alaska, USA (J.A.W.).

Address correspondence and reprint requests to Marveen Craig, RDMS, 11510 N Charoleau Dr, Tucson, AZ, 85735 USA. E-mail: cramar25{at}earthlink.net.

Objectives. To review sonographic findings that can mimic renal calculi. Methods. We comment on a number of echoes that can mimic renal calculi. Results. There are a number of sonographic renal artifacts, vascular and nonvascular, that may confound a correct diagnosis. Conclusions. Awareness of these potential artifacts will result in a more specific sonographic examination and will accurately guide the referring physician toward appropriate patient treatment. The importance of other imaging modalities is also emphasized to ensure that a correct diagnosis is obtained whenever the sonographic findings are inconclusive.

Key Words: renal artifacts • renal calculi • sonography

Abbreviations: CT, computed tomography

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