BACKGROUND Perivascular epithelioid cell tumors (PEComas) are rare mesenchymal neoplasms of uncertain malignant potential, which have in common the co-expression of muscle and melanocytic immunohistochemical markers. CASE PRESENTATION A 48-year-old man presented with dysuria, passage of urinary sediment and lower abdominal discomfort. A three centimeter mass was identified by cystoscopy in th...

objective(s):green tea (gt) is one of the most popular beverages worldwide whose beneficial effects on health have been demonstrated. recent studies suggest that gt may contribute to reduction of cancer risk and progression. the aim of this study was to evaluate the effects of whole gt on urinary bladder chemical carcinogenesis in male and female icr mice. materials and methods: the gt characte...

BACKGROUND Bladder leiomyomas are benign mesenchymal neoplasms and very rare urinary tumours that represent <0.5% of all bladder tumours, with only 250 cases reported worldwide to date. The importance of recognising their characteristic features, leading to their correct treatment, is fundamental. Therefore, we reviewed reports of leiomyomas of the urinary bladder, their causes, clinical presen...

In this issue of ONCOLOGY, Kamat and Mathew provide an excellent overview of the current status and future imperatives of bladder cancer treatment and research. As the authors highlight, and as other experts have recently written,[1] a paradigm shift is long overdue. The basic management of bladder tumors has remained essentially unchanged for over 50 years, and despite its importance—on accoun...

gross hematuria or macroscopic hematuria is a high risk urologic condition that might occur in different settings. in the case of continued gross hematuria, blood clot size may grow and lead to complete obstruction of urinary outflow. placement of three-way catheter, continuous bladder irrigation with normal saline, and cystoscopy are conventional treatments. here we introduce a case with urina...

Carcinoma of the bladder is the seventh most common cancer worldwide [1]. It comprises 3.2% of all cancers, with an estimated 260 000 new cases each year in men and 76 000 in women. The highest incidence rates in males and females occur in Western Europe, North America and Australia. The UK annual incidence is over 10 000 new cases, with a male:female ratio of 5 : 2 [2–5]. Urothelial carcinoma ...