SARCOMA cơ vân của tuyến tiền liệt hình ảnh cộng hưởng từ

Rhabdomyosarcoma of the prostate: Mr findings

SUMMARY:

Prostatic rhabdomyosarcoma is a rare tumor, especially in the elderly, and has extremely poor prognosis. We report a case of rhabdomyosarcoma of the prostate on a 64 year-old patient who was admitted to hospital, complaining of dysuria, and pain in anus region. Rectal digital examination found a large mass compressing the rectum, which was suspected tumor of the prostate. Ultrasound: Prostate was enlarged and heterogenous. Perineal biopsy revealed rhabdomyosarcoma. MR examination demonstrated the tumor arises from peripheral gland zone of the right lobe, developing outward, encasing the left lobe, seminal vesicles, compressing the rectum. The tumor was lobulated, seperated by fibrous septa, heterogenous hyperintensity on T2W, with many hemorrhage foci due to recent biopsy. The tumor enhanced heterogenously after contrast administration.

Key worlds: MRI, prostate, sarcoma