A Bosniak grade 2F renal cyst

 Bosniak grade of the renal cortical cyst: II F.

This patient has an incidental finding on ultrasound, of a 2 cms size renal cyst with moderately thick cyst wall calcifications and multiple thin septations. 

Color Doppler imaging doesn't show internal vascularity. 

The Bosniak classification system is a widely used system for classifying renal cysts based on their appearance on imaging tests. A Bosniak II F cyst is a minimally complicated cyst that has thin septations that are less than 1 mm thick. However, there are some thick calcifications. These cysts are considered to be benign and have a low risk of malignancy with follow up ultrasound necessary. 

In our case, the cyst is 2 cm in size, which is larger than the 1 cm cutoff for a Bosniak I cyst. However, the septations are thin (less than 2 mm) and the wall calcifications are small (3 mm). These features are consistent with a Bosniak II F cyst.

It is important to note that the Bosniak classification system is not perfect and cannot definitively rule out malignancy.

Note: ultrasound imaging in conjunction with contrast CT scan is essential in an accurate grading of the renal cyst.

Here is a table of the Bosniak classification system:

* Prognosis: The prognosis of a Bosniak grade 2F renal cyst is generally good. The risk of malignancy is low, at around 3%. However, there is a small risk of the cyst progressing to malignancy, so it is important to have regular follow-up imaging.

* Management: The management of a Bosniak grade 2F renal cyst is typically observation. This means that the patient will have regular follow-up imaging, such as ultrasound or CT scan, to monitor the cyst for any changes. If the cyst grows or changes in appearance, then surgery may be recommended to remove it.

Some additional things to keep in mind about the management:

* The frequency of follow-up imaging is not standardized, but it is generally recommended to have imaging every 1 year.

* Other factors that may be considered when deciding on the management of a Bosniak grade 2F renal cyst include the patient's age, health status, and preferences.

* If surgery is recommended, the type of surgery will depend on the size and location of the cyst. 

For more information on this topic visit:

Ultrasound imaging of kidneys

Bosniak classification for renal cysts