When to Intervene in Acute Necrotizing Pancreatitis: A Narrative Review of the Optimal Timing for Intervention Strategies.

Introduction: Acute necrotizing pancreatitis (ANP) is the acute inflammation of pancreatic parenchyma, most commonly due to alcohol abuse or cholelithiasis. The treatment can be either conservative or invasive, including a variety of techniques; however, it has not yet been established if the intervention should be early or if it should be delayed. The aim of this review is to investigate the optimal time for intervention in ANP. Methods: A literature search was conducted in PubMed and Scopus from inception until September 2024 for studies reporting the comparison between early and late intervention. Results: Early intervention, within 4 weeks of symptom onset, often involves drainage via percutaneous, endoscopic, or combined methods. Delayed intervention occurs after 4 weeks of symptom onset. This can be conducted either surgically or via minimally invasive means. The results of this review reveal that the time of intervention for ANP plays an important role in the prognosis and the course of the disease. In particular, early intervention is associated with higher mortality, which is also the primary clinical outcome. Delayed intervention is also superior regarding secondary clinical outcomes, specifically the complications associated with the intervention. Thus, it is accompanied by fewer episodes of new-onset organ failure, bleeding, gastrointestinal fistula, pancreatic fistula, wound infection, endocrine pancreatic insufficiency, and other complications. Finally, delayed intervention results in shorter stays, both in hospitals and the ICU. Conclusions: Delayed intervention is clearly more effective than early intervention and should be preferred. However, early intervention appears to be both safe and effective, and it is feasible.

Plasma Lipids Profile in the Prediction of Non-Alcoholic Steatohepatitis in Adults: A Case-Control Study.

Patients with non-alcoholic steatohepatitis (NASH) show significantly faster progress in the stages of fibrosis compared to those with non-alcoholic fatty liver (NAFL) disease. The non-invasive diagnosis of NASH remains an unmet clinical need. Preliminary data have shown that sphingolipids, especially ceramides, fatty acids, and other lipid classes may be related to the presence of NASH and the histological activity of the disease. The aim of our study was to assess the association of certain plasma lipid classes, such as fatty acids, acylcarnitines, and ceramides, with the histopathological findings in patients with NASH. The study included three groups: patients with NASH (N = 12), NAFL (N = 10), and healthy [non non-alcoholic fatty liver disease (NAFLD)] controls (N = 15). Plasma samples were collected after 12 h of fasting, and targeted analyses for fatty acids, acylcarnitines, and ceramides were performed. Baseline clinical and demographic characteristics were collected. There was no significant difference in baseline characteristics across the three groups or between NAFL and NASH patients. Patients with NASH had increased levels of several fatty acids, including, among others, fatty acid (FA) 14:0, FA 15:0, FA 18:0, FA 18:3n3, as well as Cer(d18:1/16:0), compared to NAFL patients and healthy controls. No significant difference was found between NAFL patients and healthy controls. In conclusion, patients with NASH exhibited a distinctive plasma lipid profile that can differentiate them from NAFL patients and non-NAFLD populations. More data from larger cohorts are needed to validate these findings and examine possible implications for diagnostic and management strategies of the disease.

Epithelial Ovarian Cancer: A Five Year Review.

Ovarian cancer is a malignant disease that affects thousands of patients every year. Currently, we use surgical techniques for early-stage cancer and chemotherapy treatment combinations for advanced stage cancer. Several novel therapies are currently being investigated, with gene therapy and stem cell therapy being the corner stone of this investigation. We conducted a thorough search on PubMed and gathered up-to-date information regarding epithelial ovarian cancer therapies. We present, in the current review, all novel treatments that were investigated in this field over the past five years, with a particular focus on local treatment.

A Rare Case of Multiple Gastrointestinal Stromal Tumors Coexisting with a Rectal Adenocarcinoma in a Patient with Attenuated Familial Adenomatous Polyposis Syndrome and a Mini Review of the Literature.

BACKGROUND: Multiple gastrointestinal stromal tumors (GISTs) are extremely rare entities that exist either as spontaneous GISTs or as part of various syndromes, such as Carney's triad and type I neurofibromatosis (NF1). Attenuated familial adenomatous polyposis (AFAP) is a variant of familial adenomatous polyposis (FAP) with a milder clinical presentation. Both GISTs and AFAP have been reported to coexist with colorectal cancer, but the coexistence of GISTs and AFAP has never been reported in the literature before. CASE REPORT: A 45-year-old male patient with known AFAP arrived scheduled for a total colectomy and ileo-rectal anastomosis due to the malignancy of one of the previously biopsied polyps of the upper rectum. Intraoperatively, multiple nodular tumors were found at the jejunum within a length of 45 cm, for which an enterectomy and enteroanastomosis were performed. A histopathological examination of the whole colectomy specimen confirmed the presence of multiple polyps in the large intestine along with a rectal invasive adenocarcinoma. At the same time, in the examined part of the small intestine, 15 GISTs sized from 0.5 to 2.0 cm of prognostic group I, were identified. The patient's postoperative course was uncomplicated. CONCLUSION: Multiple GISTs may present as an asymptomatic disease, and the same thing is true for colorectal cancer. Therefore, the appropriate screening is crucial for entities such as AFAP, since the surgery was performed because of the malignant transformation in one of the polyps and revealed multiple GISTs, as well.

Emergency General Surgery and COVID-19 Pandemic: Are There Any Changes? A Scoping Review.

Background and Objectives: The pandemic of SARS-CoV-19 has affected the overall spectrum of General Surgery, either in the case management part, or in the type of cases. The purpose of this review is to gather all the parameters affected and to compare these changes between the pandemic period and the corresponding time frame of the previous year. Materials and Methods: A review of literature in two electronic databases (PubMed and Scopus) was performed examining studies during the pre-pandemic (March to May 2019) and pandemic (March to May 2020) period about emergency surgeries. The differences in case presentation in emergency rooms, patient characteristics, length of hospitalization, type of surgery, complications and mortality rate were compared. Results: The comparison of the studies revealed significant results highlighting the differences between the two time periods for each parameter. There has been observed an overall decrease in the number of cases presented for emergency and urgent surgery. In terms of age, sex, and BMI, there were no significant variations amongst the patients. About the length of hospitalization, the patients hospitalized longer during the pandemic period. In terms of pathologies, the most common types of surgery were appendectomy, gastrointestinal, and colorectal resection. Mortality did not differ between the two study periods. Conclusions: COVID-19 affected a large part of Emergency General Surgery mainly concerns the type of operations performed. The hospitalization of patients, the complications that may have arisen and the recognition of emergencies were the most important issues faced by health care officials in hospitals during the period of COVID-19; however, there were parameters like mortality and patients' characteristics that did not appear to differ with pre-pandemic era.

Pancreatolithiasis: Does Management Depend on Clinical Manifestations?

BACKGROUND Pancreatic calculi (PC) or pancreatolithiasis refers to the presence of stones in the main pancreatic duct (MPD), side branches, or parenchyma of the pancreas. It is highly associated with chronic pancreatitis (CP), and is present in 50-90% of those patients. The stone formation can be attributed to a diversity of factors, all of them leading to obstruction in the duct, hypertension of its distal part, increased intraductal and parenchymal pressure, and inflammation, causing the standard symptom, epigastric pain. Immediate restoration of pancreatic secretion flow is of utmost importance and can be achieved with both endoscopic and surgical techniques. Endoscopic techniques include endoscopic retrograde cholangiopancreatography (ERCP) combined, if possible, with extracorporeal shock wave lithotripsy (ESWL), while surgical techniques consist of drainage and resection procedures. The choice of treatment for PC depends on the location, size, and number of stones, and the existence of other complications. CASE REPORT We present 2 cases that were diagnosed with PC, in which clinical symptoms, laboratory results, and imaging examinations were different, suggesting the variety of manifestations pancreatolithiasis can cause. Each patient was treated differently, according to their clinical situation and the presence or absence of complications. Both patients were discharged and fully recovered. CONCLUSIONS The management of pancreatolithiasis can be demanding in some cases, mostly when there are complications. The purpose of this case report is to indicate the importance of personalized treatment for each patient, as different approaches to the same medical condition should be easily identified and successfully treated.

Negative and Positive Predictors of Anastomotic Leakage in Colorectal Cancer Patients-The Case of Neutrophil-to-Lymphocyte Ratio.

Colorectal surgery for cancer is associated with a high rate of surgical complications, including anastomotic leakage. The ability to predict the risk of leakage early enough seems to be of high value, since it would facilitate the design of personalized treatment and duration of hospitalization. Although different studies present the neutrophil-to-lymphocyte ratio [NLR] as having a strong predictive value, there is a discrepancy with respect to which postoperative day is the most reliable. We evaluated a series of NLR values, from the day before surgery up to the POD7, in a cohort of 245 colorectal surgery patients in order to clarify the best predictable score for the identification of the risk of anastomotic leakage. There were 28 patients with leaks. ROC curve analysis of NLR on POD1 indicates that a cut-off point ≥ 7.4 exerts a negative prediction for leakage (AUC 0.881, sensitivity 68.7%, specificity 96.4%, PPV 28.4%, and NPV of 99.3%), thus excluding 150 patients from the risk of leakage. Furthermore, the ROC curve analysis of NLR on POD4 indicates that a cut-off point ≥ 6.5 gives a positive prediction of leakage (AUC 0.698, sensitivity 82.1%, specificity 51.6%, PPV 17.6%, and NPV of 95.6%), thus indicating 52 patients as being at high risk of leakage. Finally, NLR failed to identify five leaks out of twenty-eight. These results strongly indicate the ability of NLR on POD1 to predict patients at low risk of developing a leak and then on POD4 to predict the high-risk patients. This makes our study particularly innovative, in that it enables doctors to concentrate on potential high-risk patients from POD1.

The Effect of Probiotics on the Prognostication of the Neutrophil-to-Lymphocyte Ratio in Severe Multi-Trauma Patients.

BACKGROUND: The ratio of neutrophils to lymphocytes [NLR] is one of the most accepted prognostic indices and demonstrates a positive correlation with the severity of a disease. Given that probiotics exerted immunomodulatory properties and thus positively affected lymphocytopenia induction in severely ill patients, we performed a post hoc analysis in the ProVAP protocol to investigate whether probiotics affected the prognostication of NLR in respect to ventilator-associated pneumonia in multi-trauma patients. This cohort mandatorily involved severe traumatic brain injury patients. METHODS: The white blood cell data of all patients, after being retrieved for the days 0 and 7, were statistically assessed in respect to neutrophils, lymphocytes and NLR among the 4 sub-groups of the study: placebo/no-VAP, placebo/VAP, probiotics/no-VAP, and probiotics/VAP. RESULTS: Lymphopenia was dominant in placebo sub-groups, while an increased level of lymphocytes was prominent in probiotics sub-groups. This resulted in an increase [p = 0.018] in the NLR value in the probiotics/VAP group in relation to the probiotics/no-VAP cohort; this was an increase of half the value of the placebo/VAP [p < 0.001], while the NLR value in placebo/no-VAP group increased almost four-fold in relation to probiotics/no-VAP [p < 0.001]. Additionally, the ROC curve for probiotic-treated patients revealed a NLR7 cut-off value of 7.20 as a prognostic factor of VAP (AUC: 78.6%, p = 0.015, 95% CI: 62.6-94.5%), having a high specificity of 90.2% and a sensitivity of 42.9%. CONCLUSIONS: NLR may considered a credible prognostic biomarker in multi-trauma patients since it can evaluate the immunomodulatory benefits of probiotic treatment. However, the results of the present post hoc analysis should be interpreted meticulously until further evaluation, since they may be basically species- or strain-specific.

A Simple and Effective Mechanical Method for Adipose-Derived Stromal Vascular Fraction Isolation.

Over the last decades, there has been ongoing and evolving research concerning regenerative medicine, specifically, stem cells. The most common source of adult mesenchymal stem cells (MSCs) remains the adipose tissue and the easiest way to obtain such tissue is lipoaspirate. The fatty tissue obtained can be processed either in an enzymatic way, which is time-consuming and expensive and carries several dangers for the viability of the stem cells included, or with mechanical means which are fast, inexpensive, yield enough viable cells, and can be readily used for autologous transplantation in one-stage procedures. Herein, we demonstrate our non-enzymatic method for obtaining adipose-derived stromal vascular fraction comprising MSCs. The stromal vascular fraction was isolated via centrifugation, and the characteristics and numbers of the cells isolated have been tested with flow cytometry assay, cell culture, and differentiation. Over 91% of viable MSCs were isolated using the mechanical method. The cells retained the ability to differentiate into osteocytes, adipocytes, and chondrocytes. The method presented is simple, requiring no special equipment, and yields a viable population of stem cells in large numbers. These cells can be readily used in several operations (orthopedic, dentistry, fistulas, etc.) making feasible "one-stage" procedures, thus proving their benefits for the patient and the health care system.

Feasibility of Synchronous Liver Metastasectomy During Emergency Colorectal Surgery: A Case Report.

Colorectal cancer (CRCa) is the most frequent gastrointestinal (GI) malignancy, while the liver is the most common site of distant metastases from CRCa, arising from hematogenous spread mainly via the portal venous system. The multiform nature of tumor presentation necessitates a comprehensive approach to diagnosis, perioperative care, and oncological treatment strategy. Herein, we present a case of a 76-year-old male patient diagnosed with obstructive bowel ileus due to a sigmoid tumor with synchronous, suspicious for metastasis, liver lesion who underwent Hartmann's sigmoidectomy in conjunction with left lateral hepatic resection at the same time. Intraoperatively significant blood loss occurred, while the postoperative course of the patient included pulmonary embolism (PE) six days after the procedure, being discharged on postoperative day (POD) 21. After oncological consensus, the patient underwent adjuvant chemotherapy and his reevaluation nine months after surgery confirmed that he is free of active disease. It is evident, however, that the number of existing studies concerning synchronous metastasectomy alongside CRCa resection in an emergency setting is limited and the literature gaps on this matter emphasize the need for further research.

A Rare Case of a Direct Incarcerated Inguinal Hernia Containing an Epiploic Appendage and a Literature Review.

Inguinal hernias are a widespread condition, responsible for a large number of acute abdomen cases. Typically, indirect, rather than direct, hernias lead to complications, as a consequence of their narrower hernial defect. We report a 71-year-old male patient with a rather rare incidence of a direct incarcerated hernia who presented with acute pain in the left inguinal area at a university general hospital in Thessaloniki, Greece, in 2017. Upon clinical examination, an irreducible inguinal mass was palpated. Therefore, the existence of a complicated hernia was suspected. The patient underwent an emergency repair, during which it was established that the hernia was direct and incarcerated and that its sac contained an ischaemic epiploic appendage. The hernia was successfully repaired with mesh, the patient recovered uneventfully and was discharged five days later. Despite the rarity of complicated direct inguinal hernias, they should always be included in the differential diagnosis of irreducible groin masses as they can increase severe complications.

Pancreatic Intraductal Papillary Mucinous Neoplasms: A Narrative Review.

Introduction: Intraductal papillary mucinous neoplasms (IPMNs) are the most frequent cystic pancreatic neoplasm. They derive from the main pancreatic duct or branch ducts. Aim: This narrative review aims to present and compare the current guidelines on the management of IPMNs. Materials and methods: We reviewed the most important scientific literature on the management of IPMNs. Discussion: The clinical presentation of IPMNs is usually nonspecific; common symptoms are abdominal pain, weight loss, and jaundice. There are no sex differences, and the incidence increases with age. It is considered a premalignant lesion associated with synchronous or metachronous carcinomas. Multifocal sites within the pancreas and the presence of solid components, like mural nodules, are predictive factors for developing malignancy. Magnetic resonance imaging (MRI) is the imaging technique of choice. However, computed tomography (CT) and endoscopic ultrasound (EUS) with fine-needle aspiration (FNA) can also contribute to the diagnosis. Resection is the optimal treatment for IPMNs that arise from the main duct, while several indications are suggested for the surgery on IPMNs of branch ducts. Conclusion: The decision on surgery is not always a simple task and should be based on high-risk features of the neoplasm. In any case, re-examination and follow-up are highly recommended.

Minimally Invasive Treatments of Benign Thyroid Nodules: A Network Meta-Analysis of Short-Term Outcomes.

Background: Image-guided thermal ablation interventions are novel thermal-based modalities used for the treatment of benign thyroid nodules. Methods: We conducted a systematic review and a Bayesian network meta-analysis, examining studies using thermal ablation interventions in the treatment of benign nodular thyroid disease (PROSPERO CRD42022367680). The primary endpoints included volume reduction rate (VRR), and symptomatic score and cosmetic score improvement. Secondary endpoints included vocal disturbances, laryngeal nerve palsy, hypothyroidism, and nodular regrowth (defined by increased nodular volume of >50% for thermal ablation or new nodules arising in remaining thyroid tissue conventional surgery [CS]). Results: We included 16 studies (3 randomized controlled trials [RCTs] and 13 comparative case series), describing radiofrequency ablation (RFA), laser ablation (LA), microwave ablation (MWA), high-intensity focus ultrasound (HIFU), and CS, respectively. The review included data from 4112 patients followed for a mean of 11.9 months. Meta-analyses showed no significant differences among RFA, LA, MWA, HIFU, and CS regarding any of the primary endpoints of VRR, symptomatic score, and cosmetic score. In examining the surface under the cumulative ranking area (SUCRA) ranking, CS (SUCRA, 98.49), LA (SUCRA, 51.58), and MWA (SUCRA, 57.0) were identified as the three interventions that were most likely to result in the largest VRR, symptomatic and cosmetic score reduction. RFA, relative risk (RR) 0.19 [95% credibility interval (CI): 0.06 to 0.48], LA RR 0.23 [CI: 0.06 to 0.79], and MWA RR 0.25 [CI: 0.09 to 0.60] were associated with the greatest reduction in risk for postintervention vocal complications compared with CS, with RFA (SUCRA, 61.62) being ranked as the highest in safety. RFA RR 0.05 [CI: 0.00 to 0.40] and MWA RR 0.16 [CI: 0.02 to 0.73] were associated with a reduced risk of transient laryngeal nerve injury compared with CS. RFA RR 0.00 [CI: 0.00 to 0.00] and MWA RR 0.00 [CI: 0.00 to 0.03] were associated with a reduced risk of hypothyroidism occurrence compared with CS, with RFA (SUCRA, 99.86) yielding the highest safety ranking. RFA was associated with a reduced risk for nodular regrowth RR 0.09 [CI: 0.00 to 0.85], compared with CS. Conclusion: We have comprehensively reviewed the published literature on the efficacy and safety of thermal ablation modalities for benign thyroid nodules. Important research gaps remain regarding a paucity of both long-term data and high-quality RCTs.

Surgical Management of Groove Pancreatitis: A Case Report.

Groove pancreatitis (GP) is a chronic type of pancreatitis involving the groove area between the head of the pancreas, the duodenum, and the common bile duct. Alcohol abuse is one of the main pathogenetic factors, although its etiology is not clearly defined. Differential diagnosis of pancreatic disorders remains difficult. The lack of diagnostic management and the restrictive number of patients are the main barriers. This article presents a case of a 37-year-old male diagnosed with GP after several episodes of epigastric pain and vomiting, with a history of chronic alcohol consumption. The patient's radiological and laboratory results excluded the possibility of malignancy and suggested the diagnosis of groove pancreatitis with duodenal stenosis. After initial conservative treatment failed, surgical management was decided. A gastroenteroanastomosis was made in order to bypass the duodenum aiming for a total resolution of the symptoms and an uneventful recovery of the patient. Although most studies suggest pancreatoduodenectomy (Whipple's procedure) as the treatment of choice, a less major procedure can be performed in evidence of malignancy absence.

Uroperitoneum as a Complication of Laparoscopic Cholecystectomy: A Case Report.

BACKGROUND: Bladder rupture is more frequently encountered in blunt pelvic trauma, but can also be spontaneous or iatrogenic. Laparoscopic repair has been widely used during the last few years as a treatment for intraperitoneal bladder perforation. The bladder is the genitourinary organ most often affected by iatrogenic injury. The purpose of this article is to report what is, to our knowledge, the first documented case of bladder rupture as a complication of laparoscopic cholecystectomy. CASE DESCRIPTION: A 51-year-old female presented to the emergency department complaining about generalized abdominal pain on the sixth postoperative day after laparoscopic cholecystectomy. Laboratory results highlighted a significant impact on renal function while the abdominal CT scan demonstrated free intraperitoneal fluid collection and surgical clips in the anatomic region of the liver and in an ectopic position near the ileocecal valve. An explorative laparoscopy revealed a 2 cm defect in the superior bladder wall, which was repaired in one layer in a continuous-locking fashion. The patient was discharged home on the fifth postoperative day having an uneventful recovery. CONCLUSION: Bladder rupture frequently presents with non-specific clinical signs; as a result, it is easily misdiagnosed, especially when it occurs with a non-typical mechanism of injury. Pseudorenal failure is a relatively obscure entity that may help the clinician suspect a bladder perforation. Laparoscopic repair with a single-layer continuous suture technique is a safe and feasible treatment in hemodynamically stable patients. Prospective research is required to specify the optimal timing of catheter removal after bladder repair.

Gastrointestinal Stromal Tumors: Our Ten-Year Experience of a Single-Center Tertiary Hospital.

BACKGROUND: Gastrointestinal stromal tumors (GISTs) are the most frequent mesenchymal neoplasms of the gastrointestinal tract. They have variable clinical presentation, prognosis, and molecular characteristics. Here, we present the results of our retrospective study including patients operated on for GIST during the last decade. METHODS: All the patients who underwent GIST resection during the decade 2008-2018 were included in the study. The diagnosis was based on the pathology report. All the data were collected and analyzed statistically using the Statistical Package for Social Science v25.0. Finally, after having applied the proper search terms, a comprehensive review of articles published in the Medline database was held. RESULTS: Thirty-two patients (sixteen women) were included in the study with a mean age of 69.6 years old (SD = 13.9). Twenty-one patients had a GIST in the stomach, eight in the small intestine, and three had an extra GIST. Of the 29 patients contacted, 21 were alive with a mean survival time of 74.3 months (SD = 49.6 months, min: 3.0 months, max: 161.0 months), whereas eight patients passed away. Finally, 13 patients were treated with tyrosine kinase inhibitors (TKIs) of whom only one died, while 9 patients passed away from those treated with surgery alone (p = 0.031). CONCLUSIONS: Our results were in concordance with the existing data in the literature. GISTs require patient-based therapeutical management depending on the histology of the tumors. Gastric tumors present a better prognosis than those localized in the intestine, while the use of TKIs has led to an improvement in patient survival rate.

The rare entity of ectopic pancreatic tissue in the gallbladder: A case report.

Introduction: and importance: Ectopic pancreatic tissue (EPT) is a rare clinical entity, which is defined as the presence of pancreatic tissue without any anatomic or vascular connection with the main body of the pancreas. EPT could be found anywhere in the gastrointestinal tract; most commonly in stomach. The aim of this study is to present a rare case report of EPT located in the gallbladder. Case presentation: A 37-year-old woman was scheduled in our surgical department for elective laparoscopic cholecystectomy due to symptomatic chololithiasis. Preoperative ultrasound imaging was indicative only for the presence of multiple stone tin the gallbladder's fundus. The patient had an uneventful recovery and discharged the first postoperative day. Surprisingly, the final pathology report of the specimen referred the existence of EPT in the subserosa territory, as an incidental finding. Clinical discussion: EPT is almost impossible to be diagnosed preoperatively due to its various clinical presentation and the low discriminating power of all the usual imaging tests. However, given the potential malignant transformation of the EPT, physicians should be aware of this clinical entity and consider cholecystectomy immediately when it is highly suspected. Conclusion: EPT in the gallbladder is a very rare finding. There are no established "gold standard" techniques to identify it preoperatively. The patients are either asymptomatic or presenting with non-specific symptoms and almost always the pathology examination, after cholecystectomy, establishes the definite diagnosis.

Meckel's diverticulum abscess in the elderly population: A case report.

INTRODUCTION: and importance: Meckel's Diverticulum (MD) is the most usual congenital anatomic abnormality of the gastrointestinal tract. It is present in almost 2% of the population and it rarely becomes symptomatic in adults. Herein, we report a rare case of an elderly woman with MD, its diagnostic algorithm and treatment, pointing out the significance of this pathology in the differential diagnosis of right lower quadrant pain. CASE PRESENTATION: A 75-year-old woman presented in the emergency department due to sudden right lower quadrant abdominal pain and fever. After a comprehensive clinical and imaging evaluation, a diagnostic laparoscopy under general was performed. The appendix presented without inflammation, and a MD abscess was found about 50cm from the ileocaecal valve. The resection of the MD abscess, the appendix and the gallbladder (due to synchronous chololithiasis) were performed. The patient had an uncomplicated post-operative course and she was discharged from hospital on the fifth postoperative day after having been fed and mobilized enough. CLINICAL DISCUSSION: A complicated MD can be a life-threatening situation. Generally, the MD cannot be easily diagnosed through obtaining patient's medical history, clinical examination and laboratory testing and it is undiagnosed to up to 60% of the cases, while it is usually an incidental finding during a diagnostic laparoscopy or laparotomy. CONCLUSION: Clinicians should be aware that MD complications in the elderly population can vary. However, having under consideration the very low but true possibility of the MD in the old age may lead to an early and accurate diagnosis.

Right Paraduodenal Hernia as a Cause of Acute Abdominal Pain in the Emergency Department: A Case Report and Review of the Literature.

Paraduodenal hernias (PDHs) represent an unusual cause of acute abdominal pain in the Emergency Department (ED) and are associated with high morbidity attributable to a challenging clinical and radiological diagnosis, as signs and symptoms mimic other frequent causes of acute abdominal pain. We report a right paraduodenal hernia in a 37-year-old female patient who presented to the ED complaining of abdominal pain located in the right lower abdomen and hypogastrium, accompanied by nausea. During diagnostic work up, the abdominal computed tomography scan revealed the presence of small bowel malrotation with concomitant right paraduodenal hernia. These findings were confirmed intraoperatively. We performed a brief literature review about the clinical manifestations and treatment options of right paraduodenal hernias, which retrieved only 30 articles related to this condition. Prompt diagnosis, radiological or intraoperative, of paraduodenal hernias is crucial because nearly 50% will progress to small bowel obstruction. Therefore, it is essential for every clinician to account for them in the differential diagnosis of acute abdominal pain in the ED.

Ampullary Large-Cell Neuroendocrine Carcinoma, a Diagnostic Challenge of a Rare Aggressive Neoplasm: A Case Report and Literature Review.

Ampullary large-cell neuroendocrine carcinomas (LCNECs) are extremely rare, and available data are limited on case reports. They present with jaundice, non-specific abdominal pain, or weight loss, imitating adenocarcinoma. Their incidence increases due to the improved diagnostic techniques. However, preoperative diagnosis remains challenging. We report the case of a 70-year-old man with a history of metabolic syndrome, cholecystectomy, and right hemicolectomy, presenting with jaundice. Laboratory results showed increased liver biochemistry indicators and elevated CA 19-9. Esophagogastroduodenoscopy revealed an ulcerative tumor on the ampulla of Vater, and the biopsy revealed neuroendocrine carcinoma. Although computed tomography (CT) detected enlarged regional lymph nodes, the positron emission tomography (PET) showed a hyperactive lesion only in this area. Pylorus-preserving pancreatoduodenectomy with R0 resection was performed. Pathologic evaluation of the 3.1 × 1.9 cm tumor revealed an LCNEC with immunohistochemical positivity at Synaptophysin, EMA, CD56, and cytokeratin CK8/18. The Ki-67 index was 45%. Two out of the nine dissected lymph nodes were occupied by the neoplasm. The patient was discharged home free of symptoms, and adjuvant chemotherapy with carboplatin + etoposide was initiated. A comprehensive review of the reported cases showed that the preoperative biopsy result was different from the final diagnosis in few cases, regarding the subtypes. Conventional radiology cannot identify small masses, and other methods, such as endoscopy, magnetic resonance cholangiopancreatography (MRCP), and FDG-PET scan, might aid the diagnosis. Diagnosis is based on histology and immunohistochemical markers of the surgical specimens. The treatment of choice is pancreatoduodenectomy, followed by adjuvant chemotherapy. However, recurrence is frequent, and the prognosis remains poor.