1病例资料患者刘某,女,34岁,以“肛旁硬结伴不适1年”为主诉于2012年9月入院。1年前,患者无明显诱因出现肛旁左前方一硬节,红肿疼痛,数日后自行挤破,溢出血水样分泌物后症状缓解,未引起重视。但此后该处反复肿痛、破溃溢血水,伴肛周异物不适。患病以来,无脓血便,无排便习惯改变,无明显消瘦等。由门诊拟“肛瘘”收入院。专科查体(截石位):距肛缘2点外约1 cm处一肉芽样红色半球形结节突起,直径约0.5 cm,质稍硬,边界清楚,无压痛,未扪及皮下条索状纤维增生物。局部皮肤无破溃,无异常分泌物,肛窦无明显异常,肛管及直肠下段未扪及异常肿块。入院诊断“肛旁肿物:肛瘘?”。排除手术禁忌症后,在腰硬联合麻醉下行肛旁肿物切除 1 case data patient Liu, female, 34 years old, with “perianal sclerosis with discomfort 1 year ” as the main complaint in September 2012 admitted. A year ago, there was no obvious incentive for patients with a hard left anterior parasite, swelling and pain, a few days after their own squeeze, spilled blood-like secretions after symptoms, did not pay attention. But after that there repeated swelling and pain, ulcerated bleeding, with perianal foreign body discomfort. Since the illness, no abscess, no change in bowel habits, no significant weight loss and so on. By the outpatient simulation “anal fistula ” income hospital. Specialist examination (lithotomy position): from the anal verge 2 points about 1 cm at a granulation-like red hemispherical nodules protruding diameter of about 0.5 cm, the quality of hard, clear boundary, no tenderness, no palpable subcutaneous cords Fibrous proliferation. No local skin ulceration, no abnormal secretions, no obvious anal sinus abnormalities, anus and rectal lower unreasonable mass palpable. Admission diagnosis “perianal mass: anal fistula? ”. After exclusion of surgical contraindications, resection of perianal mass was performed under combined spinal and epidural anesthesia