Pathological report and prognostic meaning of Bosniak IV cysts: results from a contemporary cohort.
Bosniak
follow-up
renal cell carcinoma
renal cyst
Journal
Central European journal of urology
ISSN: 2080-4806
Titre abrégé: Cent European J Urol
Pays: Poland
ID NLM: 101587101
Informations de publication
Date de publication:
2023
2023
Historique:
received:
12
05
2023
revised:
02
07
2023
accepted:
23
07
2023
medline:
4
12
2023
pubmed:
4
12
2023
entrez:
4
12
2023
Statut:
ppublish
Résumé
Surgery is the recommended treatment for Bosniak IV renal cysts. We performed a retrospective analysis of Bosniak IV lesions surgically removed to increase evidence on their prognostic meaning. Patients with a Bosniak IV cyst were considered. A contrast-enhanced computed tomography (CT) scan or magnetic resonance imaging (MRI) detected a solid component with contrast enhancement. In no case a percutaneous biopsy was performed. A radical (9, 21.4%) or partial (33, 78.6%) nephrectomy was performed with laparoscopic (14, 33.3%) or robot-assisted (28, 66.7%) approach. Analysis of the final pathology was performed, and recurrence rate was assessed. 42 patients were included. Median lesion size was 54.7 mm (IQR 20.0-81.2). A solid tumour was detected in 40 patients (95.2%), whereas in 2 cases (4.8%) a benign cyst without neoplastic component was diagnosed. Final pathology revealed a low-grade clear cell renal cell carcinoma (ccRCC) in 16 cases (38.0%), a multilocular cystic renal neoplasm of low malignant potential in 6 cases (14.3%), a low-grade papillary RCC (pRCC) type I in 4 cases (9.5%), a clear cell papillary RCC (ccpRCC) in 10 cases (23.8%) and an oncocytoma in 2 cases (4.8%). A high-grade ccRCC was detected in 2 cases (4.8%), whereas no patients had a pRCC type II. In all cases surgical margins were negative. Median follow-up was 24 months and no recurrence occurred. Our results increase evidence on the favourable pathology and good prognosis of Bosniak IV renal cysts, supporting the role of surgery as a definitive treatment and suggesting the need for a low-intensity follow-up.
Identifiants
pubmed: 38045787
doi: 10.5173/ceju.2023.083R
pii: 83
pmc: PMC10690387
doi:
Types de publication
Journal Article
Langues
eng
Pagination
186-189Informations de copyright
Copyright by Polish Urological Association.
Déclaration de conflit d'intérêts
The authors declare no conflicts of interest.
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