Protruded variants in solitary ulcer syndrome of the rectum

Incidentally Discovered Mucosal Prolapse of the Colon During Colorectal Cancer Screening: A Case Report

Colonic mucosal prolapse syndrome is a rare type of non-neoplastic non-inflammatory colorectal polyps that can mimic neoplastic lesions. We present a case of a 65-year-old man with mucosal prolapse syndrome, incidentally, discovered during colorectal cancer screening. The patient was asymptomatic, and his physical exam and laboratory test results were unremarkable. During a colonoscopy, the physician removed three small tubular adenomas and two pedunculated polyps suspicious of neoplasms. Retroflexion revealed small internal hemorrhoids. The histology of the larger polyps revealed mucosal prolapse features, while the smaller polyps displayed features consistent with tubular adenomas. Management involves the removal of associated polyps during colonoscopy, followed by surveillance colonoscopy to detect any recurrent polyps or early signs of colorectal cancer. Accurate diagnosis is crucial to avoid unnecessary interventions and ensure appropriate management.

Solitary rectal ulcer syndrome: A systematic review

BACKGROUND

Solitary rectal ulcer (SRUS) may mislead the inflammatory bowel disease (IBD) or rectal polyps, which may reduce the actual prevalence of it. Various treatments for SRUS have been described that can be referred to therapeutic strategies such as biofeedback, enema of corticosteroid, topical therapy, and rectal mucosectomy. Nevertheless, biofeedback should be considered as the first stage of treatment, while surgical procedures have been offered for those who do not respond to conservative management and biofeedback or those who have total rectal prolapse and rectal full-thickness.

METHODS

A systematic and comprehensive search will be performed using MEDLINE, PubMed, Scopus, EMBASE, AMED, the Cochrane Library, and Google Scholar.

RESULTS

The results of this systematic review will be published in a peer-reviewed journal.

CONCLUSION

To our knowledge, our study discusses the factors involved in the pathogenesis, clinical symptoms, diagnosis, treatment, and management of patients. This review can provide recommended strategies in a comprehensive and targeted vision for patients suffering from this syndrome.

Mucosal Prolapse Polyp Mimicking Rectal Malignancy: A Case Report

Mucosal prolapse polyps (MPPs) are rare inflammatory lesions that are part of the mucosal prolapse syndrome. We present the case of a 40-year-old male with history of constipation referred to our institution with suspected rectal malignancy due to hematochezia and a palpable rectal mass. Colonoscopy revealed a 25 mm wide lesion suggestive of subepithelial origin but with marked erythema and erosion in the mucosa. Crypt dilatation and distortion, mixed inflammatory infiltrate and fibrosis were apparent on histological evaluation after bite-on-bite biopsies. Due to the initial suspicion of malignancy, resection was decided after discussion with the patient. However, due to non-elevation partial resection was performed allowing the diagnosis of MPP. Hematochezia ceased after obstipation treatment and endoscopic follow-up showed maintenance of the lesion with the same characteristics except for reduced dimension. MPP may mimic neoplastic lesions and should be considered in the differential diagnosis of rectal masses. History, endoscopy and histological characteristics are all necessary and important in the diagnosis of MPP.

The clinical, endoscopic and histological spectrum of the solitary rectal ulcer syndrome: a single-center experience of 116 cases

Background

Solitary rectal ulcer syndrome (SRUS) is an uncommon although benign defecation disorder. The aim of this study was to evaluate the variable endoscopic manifestations of SRUS and its association with other diseases.

Methods

All the patients diagnosed with SRUS histologically from January 1990 to February 2011 at The Aga Khan University, Karachi were included in the study. The medical records were reviewed retrospectively to evaluate the clinical spectrum of the patients along with the endoscopic and histological findings.

Results

A total of 116 patients were evaluated. The mean age was 37.4 ± 16.6 (range: 13–80) years, 61 (53%) of the patients were male. Bleeding per rectum was present in 82%, abdominal pain in 49%, constipation in 23% and diarrhea in 22%. Endoscopically, solitary and multiple lesions were present in 79 (68%) and 33 (28%) patients respectively; ulcerative lesions in 90 (78%), polypoidal in 29 (25%), erythematous patches in 3 (2.5%) and petechial spots in one patient. Associated underlying conditions were hemorrhoids in 7 (6%), hyperplastic polyps in 4 (3.5%), adenomatous polyps in 2(2%), history of ulcerative colitis in 3 (2.5%) while adenocarcinoma of colon was observed in two patients. One patient had previous surgery for colonic carcinoma.

Conclusion

SRUS may manifest on endoscopy as multiple ulcers, polypoidal growth and erythematous patches and has shown to share clinicopathological features with rectal prolapse, proctitis cystica profunda (PCP) and inflammatory cloacogenic polyp; therefore collectively grouped as mucosal prolapse syndrome. This may be associated with underlying conditions such as polyps, ulcerative colitis, hemorrhoids and malignancy. High index of suspicion is required to diagnose potentially serious disease by repeated endoscopies with biopsies to look for potentially serious underlying conditions associated with SRUS.

Mucosal prolapse syndrome presenting as rectal polyposis

Mucosal prolapse syndrome comprises a variety of clinical and histopathological entities, with mucosal prolapse as the underlying pathogenic mechanism. Due to variable clinical, endoscopic and histopathological presentation and rareness of symptomatic mucosal prolapse, misdiagnosis resulting in delayed or inappropriate treatment is frequent. This report describes a patient initially diagnosed with a colorectal polyposis syndrome consisting of multiple rectal hyperplastic and adenomatous polyps. But after careful review of medical history and histopathology, the patient was found to have a rare variant of solitary rectal ulcer syndrome presenting as rectal polyposis. The recognition of rectal polyposis as a manifestation of solitary rectal ulcer syndrome/mucosal prolapse syndrome will improve diagnosis and treatment and prevent inappropriate management of this condition.

Solitary rectal ulcer syndrome: an endoscopic and histological presentation and literature review

BACKGROUND

Although the clinicopathologic features of solitary rectal ulcer syndrome (SRUS) are well documented, the heterogeneous endoscopic appearance of lesions that the syndrome produces and its rare incidence may make for clinical confusion.

METHODS

Together with a literature review, we describe the variety of lesions experienced in our hospital with a series of endoscopic and histological illustrations and emphasize the diagnostic dilemma both clinically and histologically.

CONCLUSIONS

With comparison of different macroscopic presentations of SRUS, more correct diagnoses will be achieved and more successful treatments will be reported.

Nonsurgical Therapy for Solitary Rectal Ulcer Syndrome

The treatment of solitary rectal ulcer syndrome (SRUS) remains problematic and is less than ideal. Prospective, well-designed studies assessing the efficacy of treatment for SRUS are few; most of the knowledge imparted for treating SRUS is experiential. As such, firm treatment recommendations can not be made. Rather, a conservative, stepwise, individualized approach must be employed. Diagnostic modalities should be incorporated in the management scheme to direct treatment when indicated. Management must include patient reassurance that the underlying lesion is benign, because complete "cures" are uncommon in those with SRUS. The goals of therapy should be discussed with the patient prior to initiating treatment. Although the ultimate goal is macroscopic and microscopic healing, a realistic goal is cessation or minimization of symptoms. We outline a reasonable approach to the management of SRUS. Histologic confirmation of SRUS should prompt a discussion of the presumed pathogenic mechanisms with the patient. Conservative therapy with dietary fiber, bowel retraining, and bulk laxatives should be employed. If symptoms persist, the patient should receive a trial of sucralfate enemas for 6 weeks. Individuals who respond should continue conservative therapy. However, if symptoms persist, defecography can be done to assess for inappropriate puborectalis contraction and occult rectal mucosal prolapse. Patients with inappropriate contraction of the puborectalis can be offered biofeedback. Patients with occult rectal mucosal prolapse can be considered for surgery. However, the risks, benefits, and success rates of surgery should be discussed at length, prior to any procedure being performed. Rectopexy or Delorme's procedure offer the best success rates to date; however, the choice of surgical procedure must take into account the experience of the surgeon and wishes of the patient.