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25 mm Renal Cortical Cyst: Can It Be Cancerous

2015-02-06 01:31

25 mm Renal Cortical Cyst: Can It Be CancerousRenal cortical cyst is a very common type kidney cyst. Since it forms in the cortex of the kidney, it is called “renal cortical cyst”. Can 25 mm renal cortical cyst be cancerous?

In clinic, there is a method to divide the kidney cyst into five categories, according to the appearance of CT scan or MRI. This method is called “Bosniak classification system of renal cystic mass”. It is helpful in predicting risk of malignancy and suggesting either follow-up treatment.


♦ Bosniak 1:

simple cyst, imperceptible wall, rounded

work-up: nil

percentage malignant: ~0%

♦ Bosniak 2:

Renal lesions of less than 3 cm are also included in this category

work-up: nil

percentage malignant: ~0%

♦ Bosniak 2F

minimally complex with thick wall calcification, larger than 3 cm

work-up: needs ultrasound/CT follow up - no strict rules on time frame but could do at around 6 months.

percentage malignant: ~25% 6

♦ Bosniak 3

indeterminate, thick or multiple septations, mural nodule, hyperdense on CT

percentage malignant: ~54% 6

♦ Bosniak 4

clearly malignant, solid mass with large cystic or necrotic component

treatment: partial or total nephrectomy

percentage malignant: ~100%

Treatment for 25 mm renal cortical cyst

25 mm renal cortical cyst is large enough to cause some symptoms. The goal of treatment should control symptoms and slow down the progression of kidney cyst growth. If you are experiencing some discomforts, you can email to or leave a message below. Our doctors will reply you within 24 hours and give you some suggestions.

There is one thing you should know is that there is no treatment for kidney cyst. Traditional medicines have limited effects, because they cannot solve the underlying problem. That is, to improve kidney function is the key of treatment, and you need more natural and effective treatment.

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