-
Diseases of the Colon and Rectum Jun 2024Patients with familial adenomatous polyposis often require prophylactic colectomy with IPAA to treat or reduce the risk of colorectal neoplasia. However, after surgery,...
BACKGROUND
Patients with familial adenomatous polyposis often require prophylactic colectomy with IPAA to treat or reduce the risk of colorectal neoplasia. However, after surgery, patients are still at some risk of developing pouch polyps and even cancer in both handsewn and stapled anastomoses. Management relies mainly on endoscopic or surgical interventions, whereas chemopreventive agents have a limited role in the management and prevention of pouch neoplasia. Novel endoscopic techniques are evolving and may gradually overtake surgical intervention in selected cases. Because familial adenomatous polyposis is relatively rare, there is a scarcity of data regarding the natural history of pouch polyps and cancer in this population.
OBJECTIVE
This systematic literature review aims to describe the evolution, characteristics, various treatment modalities and their outcomes, and recommended surveillance strategies of pouch neoplasia.
DATA SOURCES
PubMed and Cochrane databases and the International Ileal Pouch Consortium (for expert opinion).
STUDY SELECTION
Studies published between 1990 and 2023 in English were included. Studies reporting neoplastic outcomes of only patients with IBD-related pouch neoplasia were excluded.
MAIN OUTCOME MEASURES
Incidence of pouch neoplasia and its outcomes (successful resections, surgical complications, and mortality).
RESULTS
Thirty-five studies were included.
LIMITATIONS
Most studies focused on patients with IBD-related pouch neoplasia; there were scarce data regarding polyposis patients only. Most cohorts were small and retrospective. Data on interventions were mainly descriptive, and no randomized controlled trials were available.
CONCLUSIONS
Pouch adenomas are common and well managed by endoscopic resections because advanced endoscopic techniques are becoming more available. Additional data are required for defining updated recommendations for either endoscopic or surgical intervention. Pouch cancer is a very rare event and may arise despite surveillance. Continued endoscopic surveillance is key in cancer prevention and early detection. The outcome of cancer cases is poor, and management in a referral center should be advised with tumor board discussions. See video from symposium .
Topics: Humans; Adenomatous Polyposis Coli; Proctocolectomy, Restorative; Colonic Pouches; Colectomy
PubMed: 37878460
DOI: 10.1097/DCR.0000000000003122 -
In Vivo (Athens, Greece) 2020Nuchal-type fibroma is a rare benign tumor arising from the connective tissue. Our aim was to present our experience via two cases of this tumor and a comprehensive... (Review)
Review
BACKGROUND
Nuchal-type fibroma is a rare benign tumor arising from the connective tissue. Our aim was to present our experience via two cases of this tumor and a comprehensive review of the literature.
PATIENTS AND METHODS
We report a case of a 23-year-old female with a mass located in the posterior neck and the upper back and a case of a 50-year-old male with a mass located in the posterior neck, which were proved to be nuchal-type fibromas in the histopathological examination. We also searched the PubMed/Medline database for published cases of nuchal-type fibromas.
RESULTS AND DISCUSSION
Nuchal-type fibroma is a rare benign tumor arising from the connective tissue, usually in the posterior neck, which affects different ages, with most patients being male. It is a poorly circumscribed tumor consisting of hypocellular, thick, dense and haphazardly arranged collagen bundles with entrapped adipocytes, nerve fibers and muscle fascicles and a few scattered spindle cells, which are CD34 positive. Its excision is curative, and the recurrence risk is generally low. However, patients with Gardner's syndrome may experience recurrence more frequently.
CONCLUSION
Nuchal-type fibroma should be included in the differential diagnosis of subcutaneous, soft-tissue masses, especially when these involve the posterior neck.
Topics: Adult; Diagnosis, Differential; Female; Fibroma; Gardner Syndrome; Head and Neck Neoplasms; Humans; Male; Middle Aged; Neck; Neoplasm Recurrence, Local; Young Adult
PubMed: 32871744
DOI: 10.21873/invivo.12032 -
Helicobacter Oct 2021There is increasing evidence that the eradication of Helicobacter pylori leads to the regression of gastric hyperplastic polyps (GHPs). We performed a systematic review... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
There is increasing evidence that the eradication of Helicobacter pylori leads to the regression of gastric hyperplastic polyps (GHPs). We performed a systematic review with a meta-analysis of randomized controlled trials and observational studies that assessed the effects of eradication.
MATERIALS AND METHODS
We searched the PubMed, Embase, and Cochrane Central Register of Controlled Trials databases for relevant studies with a combination of the terms "Helicobacter pylori" and "polyps." The risk ratio was used to compare the effect of H. pylori eradication/treatment on GHP. We also calculated the pooled disappearance rate of GHP in the H. pylori eradication/treatment group and persistent infection group.
RESULTS
We analyzed data from 6 studies, including 3 RCTs. A total of 58/394 patients were included in the H. pylori treatment/successful eradication group, and 57/302 patients were included in the H. pylori untreated/persistent infection group. The pooled rate of GHP elimination after H. pylori treatment/successful eradication was 59% (95% CI, 43%-75%)/79% (95% CI, 72%-86%). H. pylori treatment/successful eradication significantly increased the GHP elimination rate [ITT: (pooled rate: 58% vs. 0%, RR =22.24, 95% CI, 4.51- 109.78, p = 0.0001), PP: (pooled rate: 65% vs. 0%, RR =22.25, 95% CI, 4.52- 109.37, p = 0.0001)/(pooled rate: 79% vs. 9%, RR =26.87, 95% CI, 1.34-540.5, p = 0.03)].
CONCLUSIONS
Our meta-analysis showed that after the eradication of H. pylori, most GHPs are eliminated. Moreover, the treatment/successful eradication of H. pylori increased the GHP elimination rate by more than 20 times that in the control group.
Topics: Adenomatous Polyps; Anti-Bacterial Agents; Drug Therapy, Combination; Helicobacter Infections; Helicobacter pylori; Humans; Odds Ratio; Stomach Neoplasms
PubMed: 34333811
DOI: 10.1111/hel.12838 -
Journal of Stomatology, Oral and... Apr 2020Odontogenic lesions have been described in several syndromes. Despite multiple reports of ameloblastoma's association with various syndromes, it has not been added to...
Odontogenic lesions have been described in several syndromes. Despite multiple reports of ameloblastoma's association with various syndromes, it has not been added to the diagnostic criteria for any syndrome. Thus, the aim of this systematic review was gathering such cases' data. An electronic search in PubMed Central's database was performed. The search strategy was limited to human studies (case reports and case series), full-text English articles published from first of January 1975 until the end of 2018. Irrelevant articles or articles with inadequate information were omitted. Associated syndrome, patients' age and sex, lesions' location, radiographic features, and treatment modality were collected and analyzed. Ameloblastoma was reported in association with Gorlin syndrome (6 cases), epidermal nevus syndrome (2 cases), Gardner syndrome (2 cases), Simpson-Golabi-Behmel syndrome (1 case), and Williams syndrome (1 case). The commonest associated syndrome was Gorlin syndrome (50%) with maxillary and female predilections. Both cases of epidermal nevus syndrome (ENS) were female with mandibular involvement. In syndromes that odontogenic lesions are one of the diagnostic criteria, it is important to rule out ameloblastic changes. Although the relationship between ameloblastoma and these syndromes is not well known, any related information may be helpful in understanding the pathogenesis and the nature of this neoplasm.
Topics: Ameloblastoma; Basal Cell Nevus Syndrome; Female; Gardner Syndrome; Gigantism; Humans; Mandible
PubMed: 31336213
DOI: 10.1016/j.jormas.2019.07.010 -
Diseases of the Colon and Rectum Dec 2022Functional disorders impart significant morbidity in patients with inflammatory bowel disease who undergo restorative proctocolectomy.
BACKGROUND
Functional disorders impart significant morbidity in patients with inflammatory bowel disease who undergo restorative proctocolectomy.
OBJECTIVE
This systematic review aimed to summarize the management strategies for various functional disorders of the pouch.
DATA SOURCES
A database search of PubMed was conducted to identify relevant clinical studies assessing the management of various functional disorders in patients who underwent restorative proctocolectomy.
STUDY SELECTION
Published clinical studies investigating a functional disorder of the pouch in patients who previously underwent a colectomy with ileal pouch-anal anastomosis.
INTERVENTIONS
Restorative proctocolectomy was completed in patients with inflammatory bowel disease or other indications such as a diagnosis of familial adenomatous polyposis.
MAIN OUTCOME MEASURES
The primary outcomes described in this review include the prevalence of functional disorders of the pouch in patients undergoing restorative proctocolectomy and the relevant management strategies.
RESULTS
Ten clinical studies were identified using the predetermined search terms and screened for relevancy to patients with inflammatory bowel disease who previously underwent colectomy with ileal pouch-anal anastomosis. A qualitative summary was developed on the basis of data from these studies and from current guidelines developed for the management of inflammatory bowel disease.
LIMITATIONS
This systematic review is limited by the small number and low quality of the clinical studies included as well as the nonquantitative summary of the findings.
CONCLUSIONS
Functional disorders of the pouch are likely underdiagnosed. Although a source of significant morbidity, these diseases require additional clinical studies to better elucidate effective management strategies.
Topics: Humans; Proctocolectomy, Restorative; Adenomatous Polyposis Coli; Colectomy; Inflammatory Bowel Diseases; Prevalence
PubMed: 36399771
DOI: 10.1097/DCR.0000000000002586 -
Journal of Medical Genetics Nov 2023While constitutional pathogenic variants in the gene cause familial adenomatous polyposis, c.3920T>A; p.Ile1307Lys (I1307K) has been associated with a moderate... (Meta-Analysis)
Meta-Analysis
While constitutional pathogenic variants in the gene cause familial adenomatous polyposis, c.3920T>A; p.Ile1307Lys (I1307K) has been associated with a moderate increased risk of colorectal cancer (CRC), particularly in individuals of Ashkenazi Jewish descent. However, published data include relatively small sample sizes, generating inconclusive results regarding cancer risk, particularly in non-Ashkenazi populations. This has led to different country/continental-specific guidelines regarding genetic testing, clinical management and surveillance recommendations for I1307K. A multidisciplinary international expert group endorsed by the International Society for Gastrointestinal Hereditary Tumours (InSiGHT), has generated a position statement on the I1307K allele and its association with cancer predisposition. Based on a systematic review and meta-analysis of the evidence published, the aim of this document is to summarise the prevalence of the I1307K allele and analysed the evidence of the associated cancer risk in different populations. Here we provide recommendations on the laboratory classification of the variant, define the role of predictive testing for I1307K, suggest recommendations for cancer screening in I1307K heterozygous and homozygous individuals and identify knowledge gaps to be addressed in future research studies. Briefly, I1307K, classified as pathogenic, low penetrance, is a risk factor for CRC in individuals of Ashkenazi Jewish origin and should be tested in this population, offering carriers specific clinical surveillance. There is not enough evidence to support an increased risk of cancer in other populations/subpopulations. Therefore, until/unless future evidence indicates otherwise, individuals of non-Ashkenazi Jewish descent harbouring I1307K should be enrolled in national CRC screening programmes for average-risk individuals.
Topics: Humans; Genetic Predisposition to Disease; Adenomatous Polyposis Coli; Colorectal Neoplasms; Genes, APC; Risk Factors; Jews
PubMed: 37076288
DOI: 10.1136/jmg-2022-108984 -
Journal of Cancer Education : the... Jun 2023In the USA, colorectal cancer (CRC) is the 2nd leading cause of cancer-related deaths. Certain groups in the USA are at an increased risk of developing CRC, including... (Review)
Review
In the USA, colorectal cancer (CRC) is the 2nd leading cause of cancer-related deaths. Certain groups in the USA are at an increased risk of developing CRC, including those with a genetic risk and family history. The purpose of this project was to synthesize primary and secondary prevention interventions for individuals who are at high risk of CRC due to family history or genetic predisposition. This study systematically reviewed articles from PubMed, Google Scholar, and EBSCO using specific search terms to find relevant articles. Sixteen articles were identified for full-text review, which were categorized as non-drug interventions (n = 7) and drug interventions (n = 9). Non-drug interventions focused primarily on increasing screening in those with a first-degree relative (FDR) with CRC or those with Lynch syndrome (LS). Interventions that increased CRC screening often had a tailored component and were otherwise varied in study designs and intervention type. Drug interventions focused on the use of NSAIDs on patients with familial adenomatous polyposis (FAP). Studies showed very little racial and ethnic diversity. Findings suggest that tailored interventions are particularly effective in increasing CRC screening, and greater diversity of sample is needed with respect to race and ethnicity.
Topics: Humans; Secondary Prevention; Risk Factors; Colorectal Neoplasms; Adenomatous Polyposis Coli; Colorectal Neoplasms, Hereditary Nonpolyposis
PubMed: 36826735
DOI: 10.1007/s13187-023-02273-0 -
Digestive Diseases and Sciences Jun 2023Colorectal cancer (CRC) is the third most common malignancy in the US. Several factors are associated with increased/decreased CRC risk and often linked to adenomatous... (Meta-Analysis)
Meta-Analysis
OBJECTIVES
Colorectal cancer (CRC) is the third most common malignancy in the US. Several factors are associated with increased/decreased CRC risk and often linked to adenomatous colorectal polyps (CRP). Recent studies suggest a lower risk of neoplastic lesions among irritable bowel syndrome (IBS) patients. We aimed to systematically assess the occurrence of CRC and CRP in IBS patients.
METHODS
Searches of the Medline, Cochrane, and EMBASE databases were performed, blindly and independently, by two investigators. Studies of CRC or CRP incidence in IBS patients (diagnosed by Rome or other symptom-based criteria) were eligible for inclusion. CRC and CRP effect estimates were pooled in meta-analyses using random models.
RESULTS
Of 4941 non-duplicate studies, 14 were included, comprising 654,764 IBS patients and 2,277,195 controls in 8 cohort studies, and 26,641 IBS patients and 87,803 controls in 6 cross-sectional studies. Pooled analysis revealed a significantly decreased prevalence of CRP in IBS subjects vs. controls, with a pooled odds ratio (OR) of 0.29 (95% CI (0.15, 0.54)). There was significant heterogeneity between studies (I = 96%, p < 0.01). This finding persisted when studies which did not report pre-cancerous polyps separately were excluded (OR 0.23, 95% CI (0.15, 0.35), I = 85%, p < 0.01). CRC prevalence was lower in IBS subjects, but this did not reach statistical significance (OR 0.40, 95% CI (0.09, 1.77]).
CONCLUSION
Our analyses reveal a decreased incidence of colorectal polyps in IBS, although CRC did not reach significance. Mechanistic studies with detailed genotypic analysis and clinical phenotyping are needed to better elucidate the potentially protective effect of IBS on CRC development.
Topics: Colonic Polyps; Irritable Bowel Syndrome; Colorectal Neoplasms; Incidence; Humans
PubMed: 36871131
DOI: 10.1007/s10620-023-07885-6 -
Frontiers in Medicine 2021It has been suggested that () infection is associated with hypergastrinemia and proliferation of colorectal mucosa via direct stimulation, dysbiosis of the gut...
BACKGROUND
It has been suggested that () infection is associated with hypergastrinemia and proliferation of colorectal mucosa via direct stimulation, dysbiosis of the gut microbiome, and changes in the gut microbiome, all of which may lead to the formation of colorectal polyps. However, the consensus remains lacking regarding whether infection is independently associated with colorectal polyps and whether the association differs according to histological type of colorectal polyps. To summarize the current evidence regarding the relationship between infection and colorectal polyps, we conducted a meta-analysis of related observational studies according to the histological types of colorectal polyps.
METHODS
Observational studies investigating the association between infection and colorectal polyps using multivariate analyses were included by search of PubMed, Embase, and Web of Science. A random-effects model was adopted to combine the results.
RESULTS
Seventeen studies that include 322,395 participants were analyzed. It was shown that infection was independently associated with overall colorectal polyps (odds ratio [OR]: 1.67, 95% CI: 1.24-2.24, < 0.001; = 73%). According to the histological type of colorectal polyps, infection was independently associated with adenomatous polyps (APs; OR: 1.71, 95% CI: 1.47-1.99, < 0.001; = 86%), advanced APs (OR: 2.06, 95% CI: 1.56-2.73, < 0.001; = 0%), and hyperplastic polyps (HPs; OR: 1.54, 95% CI: 1.02-2.30, = 0.04; = 78%). Evidence based on only one study showed that infection was not associated with sessile serrated polyps (SSPs; OR: 1.00, 95% CI: 0.93-1.07, = 0.99).
CONCLUSIONS
Current evidence from case-control and cross-sectional studies suggested that infection was independently associated with colorectal APs, advanced APs, and HPs, but not with SSPs. These findings suggested infection may be a possible risk factor of colorectal polyp, which is important for the prevention of colorectal polyp in the adult population.
PubMed: 35118081
DOI: 10.3389/fmed.2021.706036 -
Digestive Diseases (Basel, Switzerland) 2022An increase in the incidence of duodenal adenocarcinoma has been recently reported. However, little is known about the risk factors for duodenal adenocarcinoma, which...
INTRODUCTION
An increase in the incidence of duodenal adenocarcinoma has been recently reported. However, little is known about the risk factors for duodenal adenocarcinoma, which are important for screening purposes. We, therefore, aimed to conduct a systematic review to identify risk factors for non-ampullary duodenal adenocarcinoma.
METHODS
A medical literature search was performed using electronic databases, including PubMed, Cochrane Library, Japan Medical Abstracts Society, and Web of Science. Studies that assessed the association between dietary habits, lifestyle behaviors, comorbidities, and non-ampullary duodenal adenocarcinoma were extracted. The Newcastle-Ottawa Scale was used to assess the risk of bias in individual studies, and the Grading of Recommendations, Assessment, Development, and Evaluations approach was used to assess the quality of evidence across studies included in this review.
RESULTS
Out of 1,244 screened articles, 10 were finally selected for qualitative synthesis. In the general population, no consistent risk factors were identified except for Helicobacter pylori positivity, which was considered a risk factor in 2 studies, but the quality of evidence was considered very low because of the high risk of bias. In patients with familial adenomatous polyposis (FAP), Spigelman stage IV at initial endoscopy was considered a consistent risk factor in 3 studies.
CONCLUSIONS
There are currently limited data regarding risk factors for non-ampullary duodenal adenocarcinoma, and no conclusive risk factors were identified in the general population. However, in patients with FAP, Spigelman stage IV was identified as a consistent risk factor. Further studies are needed to improve diagnosis and support effective clinical management of this malignancy.
Topics: Adenocarcinoma; Adenomatous Polyposis Coli; Duodenal Neoplasms; Duodenum; Humans; Risk Factors
PubMed: 34000722
DOI: 10.1159/000516561