Renal oncocytoma CT: Difference between revisions
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On abdominal CT scan, renal oncocytoma is characterized by a large well demarcated [[tumor]].<ref name=radio> Renal oncocytoma.Dr Donna D'Souza et al. Radiopaedia.org 2015.http://radiopaedia.org/articles/renal-oncocytoma</ref> | On abdominal CT scan, renal oncocytoma is characterized by a large well demarcated [[tumor]].<ref name=radio> Renal oncocytoma.Dr Donna D'Souza et al. Radiopaedia.org 2015.http://radiopaedia.org/articles/renal-oncocytoma</ref> | ||
''' | '''Noncontrast CT Scan''' | ||
* Homogenous attenuation: If tumor size is less than 3 cm | * Homogenous attenuation: If tumor size is less than 3 cm | ||
* Heterogenous attenuation: If tumor size is more than 3 cm | * Heterogenous attenuation: If tumor size is more than 3 cm | ||
| Line 14: | Line 14: | ||
* [[Calcification]] may be present | * [[Calcification]] may be present | ||
''' | '''Contrast CT Scan''' | ||
* Small tumors may enhance homogeneously, but usually enhancement is heterogenous and the mass is larger | * Small tumors may enhance homogeneously, but usually enhancement is heterogenous and the mass is larger | ||
* Central stellate non-enhancing scar is seen in approximately a third of cases | * Central stellate non-enhancing scar is seen in approximately a third of cases | ||
Revision as of 18:42, 29 October 2015
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Renal oncocytoma Microchapters |
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Renal oncocytoma CT On the Web |
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American Roentgen Ray Society Images of Renal oncocytoma CT |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Shanshan Cen, M.D. [2]
Overview
Abdonimal CT scan is helpful in the diagnosis of renal oncocytoma.[1]
CT
On abdominal CT scan, renal oncocytoma is characterized by a large well demarcated tumor.[1]
Noncontrast CT Scan
- Homogenous attenuation: If tumor size is less than 3 cm
- Heterogenous attenuation: If tumor size is more than 3 cm
- Perinephric fat-stranding may be present due to edema
- Calcification may be present
Contrast CT Scan
- Small tumors may enhance homogeneously, but usually enhancement is heterogenous and the mass is larger
- Central stellate non-enhancing scar is seen in approximately a third of cases
- Renal vein thrombosis may be present, but tumor thrombus is absent
References
- ↑ 1.0 1.1 Renal oncocytoma.Dr Donna D'Souza et al. Radiopaedia.org 2015.http://radiopaedia.org/articles/renal-oncocytoma