ABSTRACT
The Purpose of the present paper is to describe the pattern of the cancers of the urinary system registered in Aden Cancer Registry [ACR] as regards age and sex distribution, residency, sub site, histopathological diagnosis and incidence rate. Methodology: The registered cancers in ACR during the period of five years [1st of January 1997 through 31st of December 2001] were analyzed to describe the pattern of urinary system cancers [kidney, bladder and urethra, ICD-0: 64:9-68:9]. Canreg-3 and Epi-Info software were used in the analysis of data. Classification and coding of cancers were carried out according to the ICD-O and ICD-b. A total of 1735 cases were registered during the period of the study. Of them, 56 cases [3.2%] were urinary system cancers. Sex distribution showed male preponderance [76.8%]. More than two-thirds of cases were bladder cancers [67.9%], compared to 30.4% kidney cancers and 1.8% urethral cancers. Transitional cell carcinoma was the most frequent histological type. The median age at diagnosis was 59 years [Range 3-78 years]. The highest age-specific incidence rate of bladder cancer observed at the age 55-<65 years [11.8/100.000 inhabitants for males vs. 6/100.000 inhabitants for females], whereas that of kidney cancers observed at an older age [65-<75 years] [3.1/100.000 inhabitants and 2.6/100.000 inhabitants for males and females respectively]. Conclusion and recommendations: Cancers of the urinary system comprised a minority of the registered cases. However, many of these cancers have predisposing risk factors and produce early warning signs and symptoms, therefore, increasing the awareness of the public about the early warning signs of these cancers and further studies to investigate the community-related risk factors and the survival of patients are mandatory