CT and MRI in fat-containing papillary renal cell carcinoma

Garin, J M; Marco, Inmaculada Rubio; Salva, Antonio José Ramis; Serrano, Félix; Bondia, José María; Pacheco, M. Cristina

doi:10.1259/bjr/79274414

Cited by 25 publications

(12 citation statements)

References 23 publications

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“…Some RCC can contain calcifications, and MRI may not detect them. [ 31 ] Press et al . mentioned in their article that the overall diagnostic utility of ultrasonography (US) is questionable.…”

Section: Discussionmentioning

confidence: 99%

Clinical Effectiveness of 18 F-Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography in Management of Renal Cell Carcinoma: A Single Institution Experience

Win

Aparici

2015

World J Nucl Med

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Positron emission tomography (PET) is currently the most advanced technique of metabolic imaging available for tumor diagnosis and follow-up. The aim of this study was to examine the versatility and accuracy of fluorodeoxyglucose (FDG) PET/computed tomography (CT) in the metastasis detection of renal cell carcinoma (RCC). We also compared our findings to other similar studies from the literature. This is the biggest study so far to examine the sensitivity and specificity of FDG PET/CT in the management of RCC. A retrospective review was carried out on all the FDG PET/CT studies done from January 1999 to January 2014 at our institution. Biopsy results were considered the gold standard. For our patients (n = 315) with biopsy results, FDG PET/CT studies exhibited 100% sensitivity, 100% specificity. Our results were better than results achieved by other studies. The use of FDG PET/CT in restaging and metastasis detection of RCC has many advantages, in addition to high accuracy. This imaging technique has great potential in influencing treatment decisions. We recommend the incorporation of FDG PET/CT in routine standard protocols for RCC.

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Section: Discussionmentioning

confidence: 99%

Clinical Effectiveness of 18 F-Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography in Management of Renal Cell Carcinoma: A Single Institution Experience

Win

Aparici

2015

World J Nucl Med

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“…All reported cases of fat-containing RCC contain small foci of fat scattered within a soft-tissue mass (33)(34)(35) and can be readily differentiated from classic AML, which usually contains abundant macroscopic fat. Most fat-containing RCCs contain calcifications in close proximity to fat foci (Fig 13).…”

Section: Renal Cell Carcinomamentioning

confidence: 99%

Fat-containing Retroperitoneal Lesions: Imaging Characteristics, Localization, and Differential Diagnosis

Shaaban¹,

Rezvani²,

Tubay³

et al. 2016

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The complex anatomy of the retroperitoneum is reflected in the spectrum of neoplastic and nonneoplastic conditions that can occur in the retroperitoneum and appear as soft-tissue masses. The presence of fat within a retroperitoneal lesion is helpful in refining the differential diagnosis. Fat is easily recognized because of its characteristic imaging appearance. It typically is hyperechoic at ultrasonography and demonstrates low attenuation at computed tomography (-10 to -100 HU). Magnetic resonance imaging is a more ideal imaging modality because it has better soft-tissue image contrast and higher sensitivity for depicting (a) microscopic fat by using chemical shift imaging and (b) macroscopic fat by using fat-suppression techniques. Whether a lesion arises from a retroperitoneal organ or from the soft tissues of the retroperitoneal space (primary lesion) is determined by examining the relationship between the lesion and its surrounding structures. Multiple imaging signs help to determine the organ of origin, including the "beak sign," the "embedded organ sign," the "phantom (invisible) organ sign," and the "prominent feeding artery sign." Adrenal adenoma is the most common adrenal mass that contains microscopic fat, while myelolipoma is the most common adrenal mass that contains macroscopic fat. Other adrenal masses, such as pheochromocytoma and adrenocortical carcinoma, rarely contain fat. Renal angiomyolipoma is the most common fat-containing renal mass. Other fat-containing renal lesions, such as lipoma and liposarcoma, are rare. Fatty replacement of the pancreas and pancreatic lipomas are relatively common, whereas pancreatic teratomas are rare. Of the primary retroperitoneal fat-containing lesions, lipoma and liposarcoma are common, while other lesions are relatively rare. (©)RSNA, 2016.

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“…Pitfall : Malignant renal neoplasms , including clear cell and papillary carcinoma , have been noted to rarely contain gross or " macroscopic " fat (D'Angelo et al 2002 ;Garin et al 2007 ). In these instances, although exceedingly rare, imaging differentiation from AML is very challenging.…”

Section: Angiomyolipoma and Mimicsmentioning

confidence: 99%