2018-12-01

2020-05-05 · There is limited experience with imaging surveillance of Bosniak IV renal lesions. In cases of AS of Bosniak IV tumors, if a solid nodular septum or nodular wall cannot consistently be found in order to correctly follow-up in terms of progression, we suggest managing it as a small renal mass (Fig. 7 ) and not as a cystic Bosniak IV in terms of progression.

To determine percentage of Bosniak category 2F complex cystic renal masses that progress to malignancy based on serial follow-up studies,and to determine if there are demographic and/or imaging features associated with progression. Blue curves indicate Bosniak 2f. Surveillance renal US did not detect a stage change and in 1 case it ultimately delayed the diagnosis of a true Bosniak 3 cyst, which was 2F on US. In 3 cases of Bosniak 2F cysts the septations became more nodular and the cysts progressed to 3n. The growth rate of 3n and 2F cysts was 0.19 and 0.11 cm per year (p = 0.0493 and 0.0327, respectively). Locally advanced or metastatic disease did not develop in any patient.

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Radiology 2012; 262:152. 2019-12-06 type 2F: (the “F” is for follow-up needed) cysts are more complex that simple type II cysts, but do not meet the criteria for a type III classification. These cysts may demonstrate an increased number of septa or minimal smooth thickening of the wall or septa. Results: A total of 112 patients met study inclusion criteria, of whom 81 were initially diagnosed with a category IIF cyst and 31 had a Bosniak category III cyst. At a median followup of 15 months 14.8% of Bosniak IIF lesions progressed in complexity with a median time to progression of 11 months (maximum greater than 4 years).

Bosniak Classification of Renal Cystic Disease. The Bosniak classification was described in 1986. This classification helps the radiologist to categorize each cystic renal mass as "nonsurgical" (ie, benign in category 1 and 2) or as "surgical" (ie, requiring surgery in category 3 and 4).

To better characterize the frequency of Bosniak cyst class changes and identify predictors of change and progression. To determine the average growth rate of cysts and validate the safety of active surveillance.

2018-02-23

the benign simple cysts (Bosniak I) and the clearly Radiological progression of Bosniak 2F cysts is low but may occur up to 24 months after diagnosis. Our data suggests that it is safe to discharge patients with stable cysts after 2 years of surveillance. Adhering to follow-up protocols can alleviate pressure on radiology and urology services. Approximately one-half of small (< 4 cm) Bosniak category 3 and 4 cystic renal lesions were downgraded, and the majority (88%) of small Bosniak category 2F lesions regressed or remained stable during active surveillance. Therefore, small size should be a consideration for conservative management. To our knowledge, however, no studies have examined the natural history, including migration of Bosniak categories, of small (< 4 cm) Bosniak category 2F, 3, and 4 lesions during active surveillance.

Background: The Bosniak system for radiological classification of renal cysts offers a tool for surgical decision-making in clinical practice. Although 95% of Bosniak 2F cysts remain benign, a consensus on the management of Bosniak 2F 2017-06-30 Abstract: Bosniak 2F renal cystic lesions feature morphologic characteristics between Bosniak I and III categories, the majority of which remain benign. However, a minor part of Bosniak 2F lesions may progress to malignancy.
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The Bosniak Classification (Warren, & McFarlane 2005) It is usually easy to differentiate between lesions at the ends of the spectrum, i.e. the benign simple cysts (Bosniak I) and the clearly Radiological progression of Bosniak 2F cysts is low but may occur up to 24 months after diagnosis. Our data suggests that it is safe to discharge patients with stable cysts after 2 years of surveillance.

Abstract: Bosniak 2F renal cystic lesions feature morphologic characteristics between Bosniak I and III categories, the majority of which remain benign.
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Resection of the Bosniak 2F cyst provides 2 advantages: the recipient receives a new donor kidney and will be free of dialysis, and the donor will be free of surveillance. Conclusions: We present a practical guideline for kidney donors with Bosniak 2F cysts, balancing the risk of tumor trans-

Bosniak Classification of Renal Cystic Disease.

Adding the IIF category has increased the accuracy and clinical impact of the Bosniak categorization system, as evidenced by a low rate of progression in category IIF cysts and an increased rate of malignancy in surgically treated category III lesions compared to those in historical controls.

Therefore, small size should be a consideration for conservative management. Purpose: We investigated whether adding the IIF categorization improved the accuracy of Bosniak renal cyst classification, as evidenced by a low rate of progression in IIF lesions and a high rate of malignancy in category III lesions. Materials and methods: We retrospectively reviewed the records of patients with complex renal cysts categorized as a Bosniak IIF or III. Radiological progression of Bosniak 2F cysts is low but may occur up to 24 months after diagnosis. Our data suggests that it is safe to discharge patients with stable cysts after 2 years of surveillance. Adhering to follow-up protocols can alleviate pressure on radiology and urology services. Bosniak classification of renal cysts (illustrations) Loading images This diagram depicts various renal cysts morphologies, listed in order by their potential for malignancy, using the Bosniak classification system. The cysts in the top row (1 and 2) do not need further evaluation or monitoring.

733- 738.