Renal oncocytoma CT: Difference between revisions
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==CT== | ==CT== | ||
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> | |||
'''Non contrast''' | '''Non contrast''' | ||
* If less than 3 cm | * Homogenous attenuation: If tumor size is less than 3 cm | ||
* If more than 3 cm | * Heterogenous attenuation: If tumor size is more than 3 cm | ||
* Perinephric fat-stranding may be present | * Perinephric fat-stranding may be present due to edema | ||
* Calcification may be present | * Calcification may be present | ||
'''Post contrast''' | '''Post contrast''' | ||
* 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 | ||
* Renal vein thrombosis may be present, but tumour thrombus is absent | * Renal vein thrombosis may be present, but tumour thrombus is absent | ||
Revision as of 19:59, 26 October 2015
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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]
Overview
CT scan may be helpful in the diagnosis of renal oncocytoma.
CT
On abdominal CT scan, renal oncocytoma is characterized by a large well demarcated tumor.[1]
Non contrast
- 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
Post contrast
- 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 tumour thrombus is absent
References
- ↑ Renal oncocytoma.Dr Donna D'Souza et al. Radiopaedia.org 2015.http://radiopaedia.org/articles/renal-oncocytoma