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자료유형
학술저널
저자정보
저널정보
대한병리학회 Journal of Pathology and Translational Medicine Journal of Pathology and Translational Medicine 제42권 제6호
발행연도
2008.1
수록면
381 - 388 (8page)

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Background : Neuroendocrine differentiation of prostatic carcinoma is known to be associated with a poor prognosis, tumor progression and androgen-independency, and there is currently no successful therapy for this type of tumor. The purpose of this study is to evaluate the prognostic implications of neuroendocrine differentiation in prostatic carcinoma in Korean men. Methods : Six hundreds and ninety nine consecutive cases of radical prostatectomy specimens were systematically processed for topographic mapping. Neuroendocrine differentiation was detected by immunohistochemistry by using antibody to chromogranin. We analyzed the relationship between neuroendocrine differentiation and the clinicopathological prognostic factors, as well as biochemical failure. The neuroendocrine differentiation was evaluated according to the presence of chromogranin-positive cells, the pattern of neuroendocrine cells and the number of neuroendocrine cells, respectively. Results : Neuroendocrine differentiation was detected in 150 out of 699 cases (21.5%). The presence of neuroendocrine differentiation as well as the pattern of neuroendocrine cells was correlated with biochemical failure and the other clinicopathological prognostic factors such as the Gleason score, the pathologic stage, the tumor volume, angiolymphatic invasion, perineural invasion, and the Ki-67 proliferative index (p<0.05). Conclusions : We suggest that neuroendocrine differentiation of prostatic carcinoma is a prognostic factor even in radical prostatectomy specimens for localized prostate cancer. Evaluation of the presence of neuroendocrine differentiation as well as the pattern of neuroendocrine cells is recommended in radical prostatectomy specimens.

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