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  • Title: Does small-cell phenotype predict the natural history of prostate cancer? A case study in disease behavior.
    Author: Slovin SF.
    Journal: Nat Clin Pract Oncol; 2007 Sep; 4(9):551-4. PubMed ID: 17728713.
    Abstract:
    BACKGROUND: A 52-year-old man presented to his urologist with hematuria and symptoms of frequency and incomplete voiding. The patient received antibiotics without symptom resolution. His prostate-specific antigen (PSA) level was 6.6 ng/ml and digital rectal examination revealed a normal-sized firm prostate gland. Biopsy obtained by transurethral resection revealed poorly differentiated Gleason 9 adenocarcinoma of the prostate with small-cell/neuroendocrine features. Pure small-cell cancer or poorly differentiated prostate cancer may secrete little or no PSA. One should be alerted to this phenotype in a patient with large volume disease on biopsy or examination and a low PSA or PSA not in proportion to tumor burden. INVESTIGATIONS: Digital rectal examination, laboratory tests, cystoscopy, prostatic chips obtained from transurethral resection, prostate biopsy, bone scan, CT scan of the chest, abdomen and pelvis. DIAGNOSIS: Poorly differentiated Gleason 9 adenocarcinoma of the prostate with small-cell/neuroendocrine features. MANAGEMENT: Transurethral resection, androgen blockade with a gonadotropin-releasing hormone analog and antiandrogen flutamide, oral bicalutamide, docetaxel and oral estramustine. Total pelvic exenteration with ileal conduit urinary diversion and permanent end-colostomy formation, percutaneous nephrostomy placement, cisplatin combined with etoposide.
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