Is Bosniak 2F cancerous?

Is Bosniak 2F cancerous?

In conclusion, based on the experience at our institution, 10.9% (17 of 156) Bosniak category 2F cystic lesions progressed to malignancy. Therefore, the recommended length of follow-up for the majority of Bosniak category 2F lesions is 4 years, although longer or shorter follow ups will be appropriate in some cases.

What is a Bosniak 11f lesion?

Bosniak category I and II lesions are predicted to be benign, category III potential malignant and IV predominantly malignant. Category IIF (BIIF) has subsequently been introduced for those cysts that cannot be clearly categorised as category II or III and therefore need follow-up imaging. Since 1993, when M.A.

What does a lesion on the kidney mean?

A kidney mass, or tumor, is an abnormal growth in the kidney. Some kidney masses are benign (not cancerous) and some are malignant (cancerous). One in four kidney masses are benign. Smaller masses are more likely to be benign. Larger masses are more likely to be cancerous.

What is the difference between a kidney cyst and a lesion?

Cysts are fluid filled structures that range from being “simple cysts” which are benign to more complex cysts which could be cancerous. Cysts are graded on a scale from 1 to 4 (Bosniak Classification). Bosniak 1 and 2 lesions are likely to be benign whereas Bosniak 3 and 4 lesions are more likely to be cancerous.

What is the meaning of Bosniak Category IIF?

Bosniak category IIF is a modification of the initial classification used to describe a group of cystic lesions that are more complex than Bosniak II lesions but not complex enough to be characterized as Bosniak III lesions.

Why are Bosniak Category IIF and III cystic renal lesions reclassified?

Because a number of Bosniak IIF and III lesions were reclassified at follow-up imaging, a radiologist with 17 years of experience (E.M.R.) reevaluated the images to determine whether reclassification resulted from a change in the lesion imaging characteristics or, if no change, from differing opinions of the original interpreting radiologists.

What to do about 2F cysts in Bosniak?

According to Bosniak, IIF cysts are potentially malignant and should be followed with CT examinations, performed to determine whether the cystic lesions change over time with regard to morphology and contrast enhancement pattern, subsequently resulting in an up- or downgrading (Graumann et al 2013)

How long does surgery take for Bosniak IIF?

After initial CT categorization, patients with Bosniak IIF lesions underwent surgery at a median of 0.1 year (range, 0–6.1 years), and those with Bosniak III lesions underwent surgery at a median of 0.1 year (range, 0–2.1 years).