Dec 17, 2020 It has also been shown that surgical pathology of stable Bosniak IIF cysts is malignant in less than 1%, while the cysts, which are upgraded to
CLASSIFICATION DE BOSNIAK DES KYSTES ATYPIQUES DU REIN KYSTE ATYPIQUE DU REIN : Classification de BOSNIAK Classification scanographique et validée IRM (2002) Kyste type I = kyste simple Sans paroi visible en périphérie Densité hydrique 10UH Absence de réhaussement à l’injection.
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. 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. 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. Conclusions: A diagnostic change in Bosniak 3s and 2F cysts is common and Bosniak 3n cysts behave more like Bosniak 4 cysts.
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.
The Bosniak class I lesion accounted for 7,559 or 91.0% of the cysts whereas 744 We defined Bosniak class I and II (including IIF) lesions as simple renal cysts in Active Surveillance Versus Nephron-Sparing Surgery for a Bosniak I
Le contenu est plus dense. Microsimulation model of CT versus MRI surveillance of Bosniak IIF renal cystic lesions: should effects of radiation exposure affect selection of imaging strategy?
2018-12-01 · The Bosniak classification of renal cyst complexity initially served to aid in differentiating nonsurgical lesions (categories 1 and 2) from surgical lesions (categories 3 and 4).6, 7 Category 2F lesions were created later as a group to be followed to prove cyst benignity.8, 9 However, in the era of active surveillance for small renal masses differentiating a surgical lesion from one that can
Adhering to follow-up protocols can alleviate pressure on radiology and urology services. 2017-06-01 2019-01-10 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.
In high-volume centers with surgical expertise, Bosniak 2F cysts should be a feasible option in expanding donor criteria. Israel GM, Bosniak MA. Follow-up CT of moderately complex cystic lesions of the kidney (Bosniak category IIF).
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American Journal of Case Reports , Volume 18 p. 733- 738. Background: The Bosniak system for radiological classification of renal cysts offers a tool for surgical decision-making in clinical practice.
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. Materials and Methods: We retrospectively reviewed the records of patients with complex renal cysts categorized as a Bosniak IIF or III. Surveillance imaging and pathological outcomes of category IIF cysts were recorded to determine radiological predictors of progression.
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2018-05-22
Based on our surveillance strategy of Bosniak IIF masses, we recommend computed tomography (CT)/magnetic resonance imaging (MRI) every 2 years after the initial examination. We also recommend performing one MRI (as an adjunct to CT) during the early follow-up period (<4 years). The Bosniak classification is a time-proven method for the imaging classification and management of these lesions. Knowledge of the pathognomonic features of certain benign Bosniak 2F/3 lesions is important to avoid surgery on these lesions (e.g., localized cystic disease, renal abscess).
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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. Consecutive patients referred for management of complex cysts (>= Bosniak 2F) were included.
Conclusions: We present a practical guideline for kidney donors with Bosniak 2F cysts, balancing the risk of tumor trans- Bosniak 2F depicts complex cystic lesions with complexity between Bosniak 2 and Bosniak 3 lesions and may have malignant potential in up to 5% of the cases. The Bosniak 2F category allows for non-invasive monitoring of complex renal cystic lesions. The authors conclude that septated cysts (2F and 3s) should be surveilled at 1, 3, and 5 years. For nodular cysts (3n and 4), immediate surgery, or a more rigorous surveillance schedule (6, 12, 24, 36 months), should be performed. 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. The purpose of this study was to assess Bosniak 2F cystic lesions during follow-up examinations by CEUS.
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.
Se hela listan på urofrance.org 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. 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.
The Bosniak classification system has been widely used by radiologists and urologists, having recently been found to be also suitable for use in the evaluation of renal cysts on MRI scans (7, 11-14). Although there have been many studies evaluating the malignancy rates of category III and IV cysts ( 2 , 4 , 6 , 7 ) , few studies have evaluated the malignancy rates and progression of category Bosniak 2F tipo di cisti renali è una categoria del sistema di classificazione bosniaco delle masse cistiche renali. Il sistema di classificazione inserisce le cisti renali (renali) in cinque categorie, a seconda dei risultati sulla TC. Oltre a Bosniak 2F, gli altri quattro includono: Bosniak 1, Bosniak 2, Bosniak 3 e Bosniak 4.