The course of metastatic disease originating from carcinoma of the prostate
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The purpose of this work was to study the time sequence and the patterns of the multistep spread of metastases. Fifty-one patients with stage D carcinoma of the prostate, previously treated for their primary tumor by surgery or radiotherapy combined with hormonal manipulation and for metastases by hormones and chemotherapy, were included in the study. The metastatic dissemination, characterized primarily by the appearance of bone metastases, could follow two distinct patterns: The first, characterized by sequential appearance of osteoblastic metastases, followed by the development of osteolytic bone lesions, and the second pattern, characterized by the simultaneous appearance of osteoblastic and osteolytic bone lesions.
In cases with solely osteoblastic bone metastases, the lesions are hormone sensitive and long-lasting remissions could be obtained. The development of osteolytic bone lesions is usually accompanied by the recurrence of the primary tumor and appearance of metastases in other sites, such as the lymph nodes and lungs. Bone metastases became resistant to hormonal manipulation and with chemotherapy short remissions were obtained. The course of the terminal period is faster, with shorter survival times. The determination of serum acid and alkaline phosphatase levels seems to reflect the course of the disease during the initial period of the disease only, i.e. when bone metastases are sensitive to hormonal treatment.
KeywordsPrimary Tumor Alkaline Phosphatase Bone Metastasis Hormonal Treatment Time Sequence
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