患者,男,34岁,已婚,因发现会阴部肿块伴有酸胀不适6个月于2013年7月入院。体检:截石位会阴部正中线偏右侧可触及直径约4cm球形肿块,质韧,活动度差,界限清,轻度压痛。肛门直肠指检:前列腺正常,表面光滑,质软,无压痛,未扪及结节,直肠内未扪及肿块。盆腔MRI提示尿道球部占位性病变,血肿可能,肿瘤待排。行尿道镜检查术,尿道球部黏膜光滑,未见占位性病变。遂在硬膜外麻醉下行会阴部肿块切除术,术中见肿块位 The patient, male, 34 years old, married, was admitted to hospital in July 2013 after finding the perineal mass with soreness and discomfort for 6 months. Physical examination: lithotomy median perineum can reach the right side of the center line can reach about 4cm in diameter spherical mass, quality and toughness, poor mobility, clear boundaries, mild tenderness. Anal digital rectal examination: Prostate normal, smooth surface, soft, no tenderness, no palpable nodules, rectal palpable mass. Pelvic MRI prompted space-occupying urethral lesions, hematoma may be tumor to be discharged. Urinary tract urethroscopy, urinary tract mucosa smooth, no space-occupying lesions. Then in the epidural anesthesia underwent perineal mass resection, intraoperative mass sites