Malignant phyllodes tumor of the prostate (a case report and literature review)
- VernacularTitle:前列腺恶性叶状肿瘤(附一例报告并文献复习)
- Author:
Dong WANG
;
Shan ZHENG
;
Jianhui MA
;
Al ET
- Publication Type:Journal Article
- Keywords:
Prostatic neoplasms;
Malignant phyllodes tumor
- From:
Chinese Journal of Urology
2001;0(10):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the clinical and pathological characteristics and treatment of malignant phyllodes tumor of the prostate. Methods A 60 year old male patient with malignant phyllodes tumor of the prostate was reported.The complaints consisted of dysuria,intermittent gross hematuria for 1 year,and recurrent symptoms after TURP for 2 months.The enlarged prostate was 5 cm?6 cm and palpated softly and smoothly by DRE,and heterogeneous by CT.His serum PSA level was 1.25 ng/ml.Sarcoma of the prostate was suspected and radical prostatectomy was performed on him. Results The pathology showed a special type of epithelial stromal tumor like cystosarcoma phyllodes of the mammary gland. Microscopically, the tumor was composed of cystically dilated ducts with leaf like stroma projections in the lumen.The stroma cell proliferated obviously with atypia and high mitotic rate,and the epithelial cell also proliferated but with no atypia and no mitosis.The seminal vesicle and bladder neck had tumor infiltration and the diagnosis of malignant phyllodes tumor of the prostate was confirmed.The tumor margin was negative.With immunohistochemical staining,the stromal cells were positive for vimentin,but negative for actin,with the epithelial cells positive for CK,PSA and AE1/AE3,and the basal cells positive for CK34BE12.The patient had tumor recurrence after 6 months,but refused to further treatment and was followed up till now. Conclusions Malignant phyllodes tumor of the prostate is rare but can be diagnosed properly based on clinical and pathological features.Radical prostatectomy is considered to be the most reliable treatment.
