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Recto-vaginal fistula (RVF) is defined as a pathological epithelialized communication between the posterior wall of the vagina and the anterior wall of the rectum through the recto-vaginal septum. RVFs are rare and represent less than 5% of rectal fistulas. Occurring after childbirth or during a proctological pathology, they create a deep distress for the patients. The aim of our work is to analyze the epidemiological particularities and the risk factors of occurrence of RVF as well as the modalities and results of our therapeutic management. Our work is retrospective analytic and comparative concerning 6 cases operated in the department of general surgery 3 of the UHC Ibn Rochd of Casablanca for recto vaginal fistula or recidive over a period of 7 years from 2012 to 2018. The analysis of the results of our study allowed us to note: A frequency of occurrence of RVF of about 0.48%. The average age at diagnosis was 55 in our patients. The etiologies were dominated by post-radiation (33.33%) and post-operative (16.66%) RVFs. The predominant mode of delivery in our study was vaginal delivery (83.33%). The antecedents were dominated by pelvic irradiation in 50% of patients, and pelvic surgery for cervical cancer and/or rectal cancer (50%). The diagnosis was revealed by a vaginal stool output in all patients. Surgical treatment was performed in all our patients. The surgical technique of choice in our series was drainage by Stenon, in 83.33% of patients. A protective stoma was performed in all our patients studied, a colostomy in 66.66%, and an ileostomy in 33.33% of patients. The immediate postoperative evolution was excellent in all our patients, while the short- and medium-term evolution revealed the occurrence of recurrence in one third of the patients (33.33%). The treatment of choice for recurrence was the interposition of a pedicled fat flap of the labia majora, known as the modified Martius technique. The morbidity, represented mainly by recurrence, was 25%, with a mortality rate of 0%. The occurrence of RVF in all its etiologies seems to be infrequent. However, its real incidence remains poorly documented in the literature, it varies between 0.3% and 15.3%. RVFs are considered simple or complex depending on their size, location and etiology. The high or low location and the etiology of the RVF determine the choice of the approach during surgical management. The diagnosis is most often clinical. The examination will try to find the cause of the RVF and the associated lesions. RVF can be asymptomatic. The importance of the symptoms depends on the topography of the fistula, the diameter of the orifice, and the quality of the intestinal transit. No additional investigations are required to confirm the diagnosis of RVF, since the positive diagnosis is essentially clinical. However, in the case of a high or complex fistula, the clinician can support his or her pre-therapeutic assessment with the exploration of imaging data, especially those of the digestive opacification, MRI and pelvic CT. The causes of RVFs are multiple. However, their proportions are difficult to establish. Post-obstetrical RVFs, those due to Crohn's disease, and post-op are probably the most frequent. The literature describes a variety of surgical approaches and treatment options for RVF. However, there are no treatment recommendations. The available data are vague and do not define an optimal treatment. Medical treatment with antibiotics and sitz baths is often necessary to control the local infection. The surgical management of RVFs is complex and follows several principles. The therapeutic arsenal is very varied and constitutes a real "escalation", ranging from simple drainage by suture to the radical treatment represented by abdominal-pelvic amputation. The results of the treatment of simple VF are excellent in all studies. The healing rate varies from 75 to 100% depending on the authors. The results of this study confirm the low incidence of RVF, and show that vaginal delivery and a history of pelvic surgery (for rectal or cervical cancer) are the most frequent predictors of RVF. Thus, from a therapeutic point of view, medical treatment is always required, it allows the flow of the fistula to be reduced, which facilitates preparation for the surgical procedure. • RVFs are rare and represent less than 5% of rectal fistulas • The aim of our work is to analyze the epidemiological particularities and the risk factors of occurrence of RVF as well as the modalities and results of our therapeutic management. • The surgical management of RVFs is complex [ABSTRACT FROM AUTHOR]

• Retro rectal tumors are a rare group of tumors, its diagnosis is still very difficult. • Are asymptomatic in most cases. • Most retrorectal tumors ultimately require surgical resection. Retrorectal tumors are a rare group of tumors that can be of benign or malignant origin, the differential diagnosis concerns all retrorectal tumors. We report a case of a huge retrorectal cystic hamartoma in which surgical excision was performed. A 58 years-old female presented with a low back pain and constipation. Digital rectal examination found a renitent cystic mass compressing the posterior wall of the rectum. Colonoscopy showed a tumor compressing the rectum. Magnetic resonance imaging (MRI) scan showed a presacral cystic formation. Surgical resection using laparotomy was performed. The patient made a full recovery and was released eight days after the surgery. Histological examination of the mass revealed a retrorectal cystic hamartoma. [ABSTRACT FROM AUTHOR]