Magnetic resonance imaging as a clue to successful diagnosis of renal tuberculosis: a case report

Matsui, Nobuaki; Morita, Tatsuo

doi:10.4076/1757-1626-2-8879

Cited by 4 publications

(2 citation statements)

References 6 publications

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“…[58] The superior contrast resolution of MR imaging is ideal for further characterization of renal lesions in cases with indeterminate enhancement at CT.[15] MR imaging may be useful in further characterizing a mass when CT enhancement cannot be definitively proven. [15]…”

Section: Magnetic Resonance Imagingmentioning

confidence: 99%

Tuberculosis of the genitourinary system-Urinary tract tuberculosis: Renal tuberculosis-Part II

Merchant

Bharati

Merchant

2013

Indian J Radiol Imaging

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This article reviews the computed tomography and magnetic resonance imaging (MRI) features of renal tuberculosis (TB), including TB in transplant recipients and immunocompromised patients. Multi detector computed tomography (MDCT) forms the mainstay of cross-sectional imaging in renal TB. It can easily identify calcification, renal scars, mass lesions, and urothelial thickening. The combination of uneven caliectasis, with urothelial thickening and lack of pelvic dilatation, can also be demonstrated on MDCT. MRI is a sensitive modality for demonstration of features of renal TB, including tissue edema, asymmetric perinephric fat stranding, and thickening of Gerota's fascia, all of which may be clues to focal pyelonephritis of tuberculous origin. Diffusion-weighted MR imaging with apparent diffusion coefficient (ADC) values may help in differentiating hydronephrosis from pyonephrosis. ADC values also have the potential to serve as a sensitive non-invasive biomarker of renal fibrosis. Immunocompromised patients are at increased risk of renal TB. In transplant patients, renal TB, including tuberculous interstitial nephritis, is an important cause of graft dysfunction. Renal TB in patients with HIV more often shows greater parenchymal affection, with poorly formed granulomas and relatively less frequent findings of caseation and stenosis. Atypical mycobacterial infections are also more common in immunocompromised patients.

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Section: Magnetic Resonance Imagingmentioning

confidence: 99%

Tuberculosis of the genitourinary system-Urinary tract tuberculosis: Renal tuberculosis-Part II

Merchant

Bharati

Merchant

2013

Indian J Radiol Imaging

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“…Magnetic resonance imaging (MRI) has limited additional diagnostic value in renal tuberculosis. [11] Tubercular lesions are iso- to hypointense on T1-weighted (T1W) images and iso-, hypo-, or hyperintense on T2-weighted (T2W) images; depending on presence or absence of caseous necrosis. MR urography may show changes similar to CT urography [Figure 4].…”

Section: Pathogenesis Of Tuberculosis In Solid Abdominal Visceramentioning

confidence: 99%

Imaging of Tuberculosis of the Abdominal Viscera: Beyond the Intestines

et al. 2013

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There is an increasing incidence of both intra- and extra-thoracic manifestations of tuberculosis, in part due to the AIDS epidemic. Isolated tubercular involvement of the solid abdominal viscera is relatively unusual. Cross-sectional imaging with ultrasound, multidetector computed tomography (CT), and magnetic resonance imaging (MRI) plays an important role in the diagnosis and post treatment follow-up of tuberculosis. Specific imaging features of tuberculosis are frequently related to caseous necrosis, which is the hallmark of this disease. However, depending on the type of solid organ involvement, tubercular lesions can mimic a variety of neoplastic and nonneoplastic conditions. Often, cross-sectional imaging alone is insufficient in reaching a conclusive diagnosis, and image-guided tissue sampling is needed. In this article, we review the pathology and cross-sectional imaging features of tubercular involvement of solid abdominopelvic organs with a special emphasis on appropriate differential diagnoses.

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