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The purpose of research was a definition of MRI findings at patients with various forms of renal tuberculosis. We led a retrospective analysis of MRI exams at 17 patients (33 kidneys) with various forms of renal tuberculosis. MRI at renal tuberculosis allowed to reveal infiltration, destructive, obstructive and scarring changes, as well as on CT. Sensitivity of the MRI in the diagnostics of various forms of renal tuberculosis appeared approximately identical to CT. So, papillary necrosis was revealed in 66,7%, cavernous defect – in 90%, hydronephrosis – in 100 %. However in contrast to the CT, MRI doesn't show calcifications of renal or extrarenal localizations. Thus, MRI allows diagnosing infiltrative, destructive and obstructive changes at renal tuberculosis of kidneys. MRI with contrast enhancement enables distinguishing functioning renal parenchyma from nonfunctioning. Application of the MRI in algorithm of examination improved the diagnostics of renal tuberculosis.
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