Pseudo thick-walled renal cyst by CT

Aj, Segal; Spitzer, R M

doi:10.2214/ajr.132.5.827

Cited by 19 publications

(1 citation statement)

References 3 publications

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“…Note that the cyst wall enhances less than the normal renal parenchyma but more than the cyst fluid. pole (Fig 15) (28). Coronal or sagittal images are very useful for demonstrating this parenchymal beak in polar lesions.…”

Section: Wall Thickening Nodularity and Enhancementmentioning

confidence: 99%

From the RSNA Refresher Courses

Hartman¹,

Choyke²,

Hartman³

2004

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The pathologic and imaging features of the renal cyst have been well described. A fluid-filled lesion is considered a cystic mass (ie, not a simple cyst) when it has any of the following features: calcification, high attenuation (>20 HU) at computed tomography, signal intensity not typical of water at magnetic resonance imaging, septations, multiple locules, enhancement, wall thickening, or nodularity. There are two important causes of a cystic renal mass: a complicated simple cyst (eg, one with hemorrhage, infection, or ischemia) and cystic renal cell carcinoma. At radiologic evaluation of such masses, it is imperative that optimal imaging techniques be used. Masses with calcification, high attenuation or high signal intensity, or septations can be categorized as benign (no further evaluation required), as requiring follow-up (probably benign), or as requiring surgery. Lesions requiring surgery can be benign or malignant at microscopic examination. Lesions that are multiloculated or demonstrate enhancement, wall thickening, or nodularity usually require surgery. When multiple features are present (eg, calcification and enhancement), the mass should be managed according to its most aggressive feature. Likewise, when there are conflicting findings at evaluation with different imaging modalities, the mass should be managed according to the most aggressive finding.

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Section: Wall Thickening Nodularity and Enhancementmentioning

confidence: 99%