INTRODUCTION Urachal adenocarcinoma is a very rare type of all the bladder neoplasms, typically arises in the remnant of the allantoic stalk. Its annual incidence is estimated to be 1 in 5 million individuals and the majority of patients are in the 5th and 6th decades of life with presenting symptoms of mucusuria, hematuria, irritative voiding symptoms, and palpable suprapubic mass. Urachal ade...

The signet ring cell carcinoma of the urinary bladder is a rare neoplasm; the 70 cases found in the literature pursued a fulminant and mostly fatal course; the neoplasms diffusely invaded the bladder wall without forming intraluminal growths and could not be controlled by segmental resection, radiotherapy and chemotherapy alone or in combination. We herewith present 2 cases of primary signet ri...

INTRODUCTION Secondary bladder neoplasms are uncommon and they represent only 2% of all malignant bladder tumors. CASE PRESENTATION The authors present a case of a 59-year-old Caucasian man with a primary gastric adenocarcinoma that had been surgically removed 10 years before he developed bladder metastasis. He presented with low abdominal pain after 10 years without any symptoms. Cystoscopy ...

Bladder urothelial carcinoma is typically a disease of older individuals and rarely occurs below the age of 40 years. There is debate and uncertainty in the literature regarding the clinicopathologic and prognostic characteristics of bladder urothelial neoplasms in younger patients compared with older patients, although no consistent age criteria have been used to define "younger" age group cat...

OBJECTIVES The aims of this study are to highlight the clinicopathological features of urinary bladder cancer in Yemen, and to describe the histological grading of urothelial neoplasms according to the World Health Organization and International Society of Urologic pathology (WHO/ISUP 1998) classification. METHODS This is a descriptive record-based study of 316 cases of bladder cancer diagnos...

Bladder neoplasms are associated with a high frequency of painless hematuria; however, when compared with the bleeding tendencies of other solid tumors, it is arguable that this comparatively high bleeding frequency is in part the result of an ascertainment bias, given that bladder neoplasms occupy the interior of a contractile organ that is bathed with urine and whose voided contents are amena...

Aims. Metastatic malignant melanoma of the urinary bladder is a rare clinical entity, with only twenty-three published cases to date. We present a case of this rare entity, a thorough review of the literature, and differential diagnosis of melanoma in the bladder. Methods and Results. A 55-year-old woman with a history of malignant melanoma of the right thigh, excised eight years ago, presented...

Background. Bladder cancer is a serious problem of modern oncourology due to the annual increase in number diagnosed malignant neoplasms urinary system. High-risk muscle-invasive and non-muscle-invasive forms are subject surgical treatment, while open radical cystectomy serves as “gold standard”. Laparoscopic robot-assisted competitors this method. To date, robotic method removing bladder least...