Computed tomography was done on 4 patients suspected of having an intrarenal or perirenal abscess based on clinical grounds and an abnormal excretory urogram. Intrarenal abscesses with perinephric extension were demonstrated in 3 patients and a solitary perinephric abscess was demonstrated in 1. Computed tomography is a valuable tool in the diagnostic study of suspected intrarenal and perirenal abscesses because not only can the primary abscess be shown but also its possible extrarenal extension.
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Méndez et al. (1979) studied this question.
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