Response Criteria in Urologic Malignancies
The recognition of a response to treatment in prostatic carcinoma is not qualitatively different than that in other solid tumors; nonetheless, the preponderance of bone as a site of metastases in prostate cancer makes effective measurement of response difficult. In other disease sites, such as colorectal cancer or lung cancer, inability to detect early and quantitative changes on bone scan (i.e., 25% versus 50% improvement) are of less clinical importance. In these tumors there are indicator lesions in lung, soft tissue, etc. which can be easily measured and quantitated. In contrast, in prostatic carcinoma, for the vast majority of patients, bone is the only site of metastatic disease and the dominant site of symptomatic disease.
KeywordsAcid Phosphatase Prostatic Carcinoma Mature Teratoma Prostatic Acid Phosphatase Immature Teratoma
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