Primary prostate signet ring cell carcinoma(PPSRCC)is one of the extremely rare malignant tumors in the male urogenital system,and its diagnosis mainly relies on pathological and immunohistochemical examination.Compared with typical prostate cancer,PPSRCC is characterized by more aggressive with less treatment response and poor prognosis.Current researches on the pathogenesis,clinical manifestations,pathological characteristics,diagnosis,treatment and prognosis of PPSRCC were reviewed.
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