Anorectal hemangioma - differential diagnosis of anal bleeding

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Abstract

ABSTRACT Anorectal hemangioma is one of the rarest causes of lower gastrointestinal bleeding, but is often neglected and confused in the differential diagnosis. The clinical examination is a turning point for a correct diagnosis and management of patients, thus avoiding unnecessary procedures. The treatment of choice for this condition is surgical and intraoperative bleeding is the main complication of this therapy. The present case reports a 25-year old patient with a history of bleeding from the age of 13, being diagnosed with anorectal hemangioma, and surgically treated with resection of the affected segment and with wound synthesis by marsupialization, with a good progression postoperatively.

Translated abstract

RESUMO O Hemangioma Anorretal é uma das mais raras causas de Hemorragia digestiva baixa, sendo muitas vezes negligenciada e confundida no diagnóstico diferencial. O exame clínico representa um ponto decisivo para correto diagnóstico e manejo do paciente, evitando realização de exames desnecessários, e o tratamento de escolha dessa patologia é cirúrgico, sendo o sangramento intraoperatorio a principal complicação dessa terapêutica. O relato de caso a seguir reporta a história de paciente com 25 anos, que apresentava sangramento desde os 13, sendo diagnosticado com Hemangioma Anorretal e tratado cirurgicamente com ressecção do segmento afetado e síntese de ferida com marsupialização, evoluindo bem no pós-operatório.

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Most cited references 12

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Diagnosis and treatment of diffuse cavernous hemangioma of the rectum: report of 17 cases.

R Meng, Jie Liu, Harris Wang … (2010)

Diffuse cavernous hemangioma of the rectum (DCHR) is a rare benign vascular disease, which is often misdiagnosed and difficult to treat. Seventeen cases of DCHR in our hospitals from 1995 to 2009 were identified. The detailed data of diagnosis, treatment, and prognosis were carefully studied. Seven, three, two, and one patient were mistaken as having hemorrhoids, colitis, portal hypertension, and rectal polypus, respectively. The mean delay time between initial symptoms and final diagnosis was 17.63 years (range = 0-48 years). Colonoscopy and MRI were important in the diagnosis of DCHR because of their high positive rates and specific features. All of the lesions originated from the dentate line, extending to the proximal colorectal wall. Most of the lesions were found to be restricted to the rectosigmoid wall and the rectal mesentery. Involvement of right gluteus maximus and right leg was revealed by MRI in two patients. After admission, six patients underwent coloanal sleeve anastomosis and seven patients underwent pull-through transection and coloanal anastomosis. The latter procedure was superior to the former with respect to length of operation, intraoperative blood loss, intraoperative blood transfusion, and perioperative complications. DCHR is often misdiagnosed. Preoperative colonoscopy and MRI are essential in making the correct diagnosis and to depict the extent of the lesion accurately. Due to its origination from the dentate line and the involvement of the whole layer of the rectal wall and the rectal mesentery, the treatment of choice for DCHR is complete resection by the pull-through transection and coloanal anastomosis.