Is the presence of upper tract transitional cell carcinoma in a calyceal diverticulum a risk factor for early metastasis? A case report and review of the literature

Autor: Mahmoud Mustafa, Hatem Hijaz, Amir Aghbar, Abdelkarim Barqawi, Ibraheem Alami, Nabil Khalil
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: SAGE Open Medical Case Reports, Vol 12 (2024)
Druh dokumentu: article
ISSN: 2050-313X
2050313X
DOI: 10.1177/2050313X241288341
Popis: Upper tract transitional cell carcinoma poses diagnostic challenges due to its prevalence and diverse clinical presentations. This case report describes the incidental discovery of high-grade transitional cell carcinoma during the management of a 48-year-old male with ischemic heart disease and an asymptomatic right renal stone. During flexible ureteroscopy for stone removal, papillary lesions were identified within a calyceal diverticulum and confirmed as high-grade transitional cell carcinoma. The unique anatomy of the calyceal diverticulum, characterized by its restricted wall thickness, may predispose the tumor to early metastasis. Additionally, there is a concern about potential iatrogenic dissemination of tumor cells to the bladder during the ureteroscopic procedure. This case highlights the diagnostic complexities associated with upper tract transitional cell carcinoma in rare anatomical locations and emphasizes the need for careful consideration of both procedural factors and anatomical features to manage the risk of metastasis and tumor dissemination effectively.
Databáze: Directory of Open Access Journals