Detection of pseudocapsule of renal cell carcinoma with MR imaging and CT.

Yamashita, Yasuyuki; Honda, Shinichi; Nishiharu, Taiji; Urata, Joji; Takahashi, Manabu

doi:10.2214/ajr.166.5.8615260

Cited by 88 publications

(59 citation statements)

References 7 publications

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“…The present report adds another entity, granular-cell RCC with foamy histiocytes, to the list of differential diagnoses of renal tumors that contain radiologically detectable microscopic fat. Differentiation of angiomyolipoma with minimal fat from RCC, whether it is clear-cell type or granular-cell type with foamy histiocytic infiltration, may be made by the absence of the pseudocapsule [11].…”

Section: Case Reportmentioning

confidence: 99%

Fat detection in granular-cell renal cell carcinoma using chemical-shift gradient-echo MR imaging: another renal tumor that contains fat

et al. 2000

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Preoperative chemical-shift magnetic resonance images in a 56-year-old man suggested the presence of microscopic fat in the tumor. The surgical specimen showed a granular-cell renal cell carcinoma with papillary architecture, associated with abundant fat-containing foamy histiocytes in the interstitium. The radiologist should include this entity in the differential diagnoses of renal tumors that contain microscopic fat.

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Section: Case Reportmentioning

confidence: 99%

Fat detection in granular-cell renal cell carcinoma using chemical-shift gradient-echo MR imaging: another renal tumor that contains fat

et al. 2000

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“…The presence of a pseudocapsule is one and represents a low risk of perinephric fat invasion [9]. Studies have shown an increased sensitivity in detecting a pseudocapsule using MRI compared to CT and can therefore be a useful tool in the preoperative planning [9,27]. RCC can also extend into the renal vein and assessment of this is imperative during the preoperative planning process [28].…”

Section: Magnetic Resonance Imaging In the Diagnosis Of Srmmentioning

confidence: 99%

Magnetic Resonance Imaging and the Use in Small Renal Masses

Vedanayagam

Bhattacharya

Sriprasad

2016

Indian J Surg Oncol

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The incidence of small renal masses (SRM) has been increasing, and this is mainly attributed to the incidental finding of such masses on imaging performed in asymptomatic patients. Consequently, this calls for careful evaluation and management of these masses to determine their nature and need for treatment. This article reviews current literature regarding the evaluation and management of SRM. It focuses on the specific use of MRI in the diagnosis and management of SRM. A Medline review of the literature was performed from 1996 to the present time. Computed tomography (CT) imaging has been the investigation of choice for evaluating SRM. However, some remain difficult to determine their malignant or benign nature and remain indeterminate. In such cases, further imaging with magnetic resonance imaging (MRI) can be performed to evaluate the mass in more detail. It can also be used where CT is contraindicated and where active surveillance is the treatment of choice and radiation exposure is a concern. MRI is a useful tool in evaluating an indeterminate small renal mass. Accurate diagnosis and management of SRM require close collaboration between a urologist and radiologist to identify potentially malignant tumours to subsequently reduce mortality from renal cell cancer.

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“…In a prospective series of 82 RCCs with histopathologic correlation, Hallscheidt et al [85] observed that MDCT offers similar accuracy in tumor staging as MRI. Several other studies reported a low sensitivity of CT in detecting fat invasion or pseudocapsules, with better results obtained using MRI [86][87][88][89] . Türkvatan et al [89] reported in their review of MDCT in 57 RCC patients that 86% of them with tumor confined within the renal capsule were correctly staged, but one T1 and four T2 tumors were overstaged because the imaging evidence of perinephric spread was ascribed on pathology to previous inflammation, organizing perinephric hematoma, and perinephric fat necrosis.…”

Section: Stagingmentioning

confidence: 99%

“…However, MRI is considered the most effective imaging modality for showing the tumor pseudocapsule, with a reported 61-93% sensitivity [114][115][116][117][118] . Pseudocapsule appears on T 2 -weighted imaging as a rim of hypointensity interposed between hyperintense tumor and normal renal parenchyma [115,116] . In case of hypointense tumors, such as some papillary tumors, the detection of the pseudocapsule may be less accurate.…”

Section: Diagnosis Of Primary Tumormentioning

confidence: 99%

Imaging of Renal Cell Carcinoma: State of the Art and Recent Advances

Sacco¹,

Pinto²,

Totaro³

et al. 2010

Urol Int

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Background and Aim: Renal cell carcinoma (RCC) is the 13th most common cancer worldwide and accounts for 4% of all adult malignancies. Herein the state of the art and recent advances in cross-sectional radiological imaging applied to RCC are reviewed, including ultrasonography, computed tomography, magnetic resonance imaging, and positron emission tomography. Methods: Literature search of peer-reviewed papers published by October 2010. Results: In front of more conventional and widespread imaging tools, such as ultrasonography and computed tomography, an array of newer and attractive radiological modalities are under investigation and show promise to improve our ability to noninvasively detect renal tumors and its recurrences, accurately assess the extent of the disease, and reliably evaluate treatment response, particularly in the era of antiangiogenetic therapy. Conclusions: Recent major advances in radiological imaging techniques have considerably improved our ability to diagnose, stage and follow-up RCC. Further studies are needed to evaluate the potential of most recent and still investigational imaging tools.

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Detection of pseudocapsule of renal cell carcinoma with MR imaging and CT.

Cited by 88 publications

References 7 publications

Fat detection in granular-cell renal cell carcinoma using chemical-shift gradient-echo MR imaging: another renal tumor that contains fat

Fat detection in granular-cell renal cell carcinoma using chemical-shift gradient-echo MR imaging: another renal tumor that contains fat

Magnetic Resonance Imaging and the Use in Small Renal Masses

Imaging of Renal Cell Carcinoma: State of the Art and Recent Advances

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