## Abstract Ultraviolet radiation is the major cause of skin cancer, but promotes vitamin D synthesis, and vitamin D has been inversely related to the risk of several common cancers including prostate, breast and colorectum. We therefore computed the incidence of prostate, breast and colorectal can
Risk of genitourinary malignancies after cancer of the prostate
โ Scribed by Raymond S. Greenberg; Eric D. Rustin; W. Scott Clark
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 621 KB
- Volume
- 61
- Category
- Article
- ISSN
- 0008-543X
No coin nor oath required. For personal study only.
โฆ Synopsis
The risk of second malignancies was evaluated in all men in metropolitan Atlanta who were initially diagnosed as having prostate cancer between January 1, 1975 and December 31, 1982. The cohort of 3675 men was observed through the end of calendar year 1984, yielding a total of 11,916 man-years of observation. Within this population 220 second cancers were diagnosed at sites other than the prostate as compared with 181.2 cancers expected based upon incidence rates for the local general population. Excesses of second malignancies were found in the urethra, kidney and bladder, as well as for melanoma of the skin. The increased risk of second neoplasms was generally greater in men younger than 70. The associated genitourinary malignancies tended to occur within 3 years of the prostatic cancer. Although increased clinical surveillance of this population could explain some of the observed excess of second cancers, these findings also are consistent with multiple cancers arising from shared etiologic factors.
๐ SIMILAR VOLUMES
Background: It has been reported that transurethral resection of the prostate (TURP) after definitive radiation therapy for prostate cancer is associated with a significant risk of incontinence. The presumed reason for incontinence is external sphincter damage from TURP or pre-existing damage from e
## Abstract Radiotherapy can induce second cancers. Controversies still exist regarding the risk of second malignancies after irradiation for prostate cancer. We evaluated the risk of developing colon and rectum cancers after prostate cancer in irradiated and nonirradiated patients. Using data from
## Dear Sir, Recently, Levi et al. 1 reported the risks of developing a prostate, breast or colorectal cancer after an initial skin cancer diagnosis. The hypothesis was that skin cancer patients would have higher vitamin D levels through higher sun exposure and would, therefore, be at reduced risk