Hereditary adenomatous polyposis syndromes, including familial adenomatous polyposis and other rare adenomatous polyposis syndromes, increase the lifetime risk of colorectal and other cancers. A team of 38 experts convened to update the 2008 European recommendations for the clinical management of patients with adenomatous polyposis syndromes. Additionally, other rare monogenic adenomatous polyposis syndromes were reviewed and added. Eighty-nine clinically relevant questions were answered after a systematic review of the existing literature with grading of the evidence according to Grading of Recommendations, Assessment, Development, and Evaluation methodology. Two levels of consensus were identified: consensus threshold (≥67% of voting guideline committee members voting either ‘Strongly agree’ or ‘Agree’ during the Delphi rounds) and high threshold (consensus ≥ 80%). One hundred and forty statements reached a high level of consensus concerning the management of hereditary adenomatous polyposis syndromes. These updated guidelines provide current, comprehensive, and evidence-based practical recommendations for the management of surveillance and treatment of familial adenomatous polyposis patients, encompassing additionally MUTYH-associated polyposis, gastric adenocarcinoma and proximal polyposis of the stomach and other recently identified polyposis syndromes based on pathogenic variants in other genes than APC or MUTYH. Due to the rarity of these diseases, patients should be managed at specialized centres.

Pancreatic ductal adenocarcinoma (PDAC) is an aggressive malignancy with a dismal prognosis, largely because of late‐stage diagnosis and therapeutic resistance. PDAC incidence has been rising, with modifiable and non‐modifiable risk factors contributing to disease development. Chronic pancreatitis, diabetes mellitus, smoking, obesity, and familial predisposition have been implicated in PDAC pathogenesis. Early clinical manifestations are vague and insidious; therefore, PDAC is often diagnosed at an advanced stage, limiting curative treatment options. Efforts to improve early detection have focused on serum biomarkers (e.g., carbohydrate antigen 19‐9), imaging modalities, and liquid biopsies. Endoscopic ultrasound and magnetic resonance imaging have demonstrated potential in identifying early‐stage disease in certain high‐risk populations. Surgical resection remains the only potentially curative option, but only 15%–20% of patients have resectable disease at diagnosis. Neoadjuvant chemotherapy has emerged as a promising strategy to improve resectability and survival outcomes. For patients with locally advanced or metastatic PDAC, combination chemotherapy regimens such as FOLFIRINOX (folinic acid, 5‐fluorouracil, irinotecan, and oxaliplatin), NALIRIFOX (5‐fluorouracil, oxaliplatin, liposomal irinotecan, and leucovorin), and combined gemcitabine/nanoparticle albumen‐bound paclitaxel offer survival benefits, although toxicity remains a concern, especially for platinum‐based therapies. Several breakthroughs in molecular profiling have led to the development of targeted therapies, including sotorasib and olaparib. Immunotherapy has shown limited success in PDAC due to its immunosuppressive tumor microenvironment. However, novel combination approaches are under investigation, including quadruplet therapy, immune checkpoint inhibitors with oncolytic viruses, stromal‐targeting agents, and personalized neoantigen vaccines. Key priorities for future research include identifying reliable biomarkers for early detection, refining patient selection for targeted therapies, and developing innovative strategies to overcome treatment resistance.

The incidence of early-onset colorectal cancer, defined as colorectal cancer occurring in young adults under the age of 50, is increasing globally. Knowledge of the etiological factors in young adults is far from complete. Questionable eoCRCs’ exogenous factors are represented by processed meat, sugary drinks, alcohol, Western dietary pattern, overweight and obesity, physical inactivity, and smoking, though with heterogeneous results. Therefore, we performed a systematic review to summarize the current evidence on the role of diet and lifestyle as eoCRC risk factors. We systematically searched PubMed, Scopus, and EMBASE up to July 2021, for original studies evaluating diet, alcohol, physical activity, BMI, and smoking in eoCRC and included twenty-six studies. Indeed, the exogenous factors could represent modifiable key factors, whose recognition could establish areas of future interventions through public health strategies for eoCRC primary prevention. Additionally, we discussed the role of additional non-modifiable risk factors, and of epigenetic regulation and microbiota as mediators of the eoCRC triggered by diet and lifestyle.

Colorectal cancer screening from 45 years of age: Thesis, antithesis and synthesis

INTRODUCTION: Surveillance programs on high-risk individuals (HRIs) can detect pre-malignant lesions or early pancreatic cancer (PC). We report the results of the first screening round of the Italian multicenter program supported by the Italian Association for the study of the Pancreas (AISP). METHODS: The multicenter surveillance program included asymptomatic HRIs with familial (FPC) or genetic frailty (GS: BRCA1/2, p16/CDKN2A, STK11/LKB1or PRSS1, mutated genes) predisposition to PC. The surveillance program included at least an annual magnetic resonance cholangio pancreatography (MRCP). Endoscopic ultrasound (EUS) was proposed to patients who refused or could not be submitted to MRCP. RESULTS: One-hundreds eighty-seven HRIs underwent a first-round screening examination with MRCP (174; 93.1%) or EUS (13; 6.9%) from September 2015 to March 2018.The mean age was 51 years (range 21–80).One-hundreds sixty-five (88.2%) FPC and 22 (11.8%) GF HRIs were included. MRCP detected 28 (14.9%) presumed branch-duct intraductal papillary mucinous neoplasms (IPMN), 1 invasive carcinoma/IPMN and one low-grade mixed-type IPMN, respectively. EUS detected 4 PC (2.1%): 1 was resected, 1 was found locally advanced intraoperatively, and 2 were metastatic. Age > 50 (OR 3.3, 95%CI 1.4–8), smoking habit (OR 2.8, 95%CI 1.1–7.5), and having > 2 relatives with PC (OR 2.7, 95%CI 1.1–6.4) were independently associated with detection of pre-malignant and malignant lesions. The diagnostic yield for MRCP/EUS was 24% for cystic lesions. The overall rate of surgery was 2.6% with nil mortality. DISCUSSION: The rate of malignancies found in this cohort was high (2.6%). According to the International Cancer of the Pancreas Screening Consortium the screening goal achievement was high (1%).