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Article History

Received: 1 April 2026

Accepted: 23 April 2026

First Online: 29 April 2026

Declarations

:

: This study was conducted as a sub-analysis of a larger retrospective study approved by the Clinical Research Ethics Committee of Ningbo Integrated Traditional Chinese and Western Medicine Hospital (Approval No.: 2026-014, dated March 11, 2026). The original study was entitled “The relationship between recurrence of bladder cancer beyond one year after surgery and dietary knowledge, attitudes, and long-term dietary patterns: a retrospective case-control study based on the coastal area of Zhejiang Province.” The present case series was derived from patients within that approved cohort. All procedures were performed in accordance with the 1964 Declaration of Helsinki, and written informed consent was obtained from all participants. Written informed consent was obtained from all patients for the publication of this case series and any images (including cystoscopic and histopathological figures). A copy of the written consent is available for review by the Editor-in-Chief of this journal.

: Not applicable.

: The authors declare no competing interests.