Ishii Daisuke, Aoki Takanori, Inaba Satoshi, Yabuki Hidehiko
Department of Surgery, Hokkaido P.W.F.A.C Engaru-Kosei General Hospital, Engaru-cho Mombetsu-gun, Japan.
BMJ Case Rep. 2018 May 18;2018:bcr-2018-225097. doi: 10.1136/bcr-2018-225097.
An 84-year-old man presented in 2009 with a sensation of discomfort in his anus, combined with difficulty in urination. He had previously undergone a haemorrhoidectomy in 1964. After examination, he was diagnosed with a rectal mucosal cyst and followed up for observation. In 2015, he presented to our hospital complaining that the cyst was prolapsing from his anus. CT revealed a 48×41 mm cystic mass in the anterior wall of the rectum. Tumour extirpation, via a transanal route, was performed. The postoperative pathological diagnosis confirmed a rectal mucocele. Rectal mucoceles are extremely rare, with no prior report of a mucocele in the anterior wall of the rectum. In this case, we believe the mucocele developed from an invagination of the mucous membrane or obstruction of the anal gland during suturing during the previous haemorrhoid surgery.
一名84岁男性于2009年出现肛门不适感，伴有排尿困难。他曾在1964年接受过痔切除术。经检查，他被诊断为直肠黏膜囊肿并接受随访观察。2015年，他因囊肿从肛门脱出前来我院就诊。CT显示直肠前壁有一个48×41毫米的囊性肿块。通过经肛门途径进行了肿瘤切除。术后病理诊断证实为直肠黏液囊肿。直肠黏液囊肿极为罕见，此前尚无直肠前壁黏液囊肿的报道。在本病例中，我们认为黏液囊肿是由先前痔手术缝合过程中黏膜内陷或肛门腺阻塞发展而来。
