Renal oncocytoma CT

Renal oncocytoma Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Homa Najafi, M.D.[2] Shanshan Cen, M.D. [3]

Overview

Abdonimal CT scan is helpful in the diagnosis of renal oncocytoma.

CT

On abdominal CT scan, renal oncocytoma is characterized by a large well demarcated tumor.

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 heterogeneous 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.

Overview

There are no CT scan findings associated with [disease name].

OR

[Location] CT scan may be helpful in the diagnosis of [disease name]. Findings on CT scan suggestive of/diagnostic of [disease name] include [finding 1], [finding 2], and [finding 3].

OR

There are no CT scan findings associated with [disease name]. However, a CT scan may be helpful in the diagnosis of complications of [disease name], which include [complication 1], [complication 2], and [complication 3].

CT scan

There are no CT scan findings associated with [disease name].

OR

[Location] CT scan may be helpful in the diagnosis of [disease name]. Findings on CT scan suggestive of/diagnostic of [disease name] include:

• [Finding 1]
• [Finding 2]
• [Finding 3]

OR

There are no CT scan findings associated with [disease name]. However, a CT scan may be helpful in the diagnosis of complications of [disease name], which include:

• [Complication 1]
• [Complication 2]
• [Complication 3]