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Asian Journal of Surgery Nov 2023
Topics: Humans; Male; Neoplasms, Multiple Primary; Colon; Stomach; Prostatic Neoplasms; Colonic Neoplasms; Stomach Neoplasms
PubMed: 37308385
DOI: 10.1016/j.asjsur.2023.05.142 -
Pharmaceuticals (Basel, Switzerland) Aug 2023The microbiome of the colon is characterized by its great diversity. This varies not only intra- but also interindividually and is influenced by endogenous and exogenous...
The microbiome of the colon is characterized by its great diversity. This varies not only intra- but also interindividually and is influenced by endogenous and exogenous factors, such as dietary and lifestyle factors. The aim of this work was to investigate the extent to which the degradation of the drug sulfasalazine is influenced by different microbiota. Therefore, the in vitro model MimiCol was used, which represents the physiological conditions of the ascending colon. In addition to a representative physiological volume, the pH value, redox potential and an anaerobic atmosphere are important to provide the bacteria with the best possible growth conditions. Stool samples were taken from three healthy subjects, comparing omnivorous, vegetarian and meat-rich diets, and cultured for 24 h. However, the nutrient medium used for cultivation led to the alignment of the bacterial composition of the microbiota. The previously observed differences between the diets could not be maintained. Nevertheless, the similar degradation of sulfasalazine was observed in all microbiota studied in MimiCol. This makes MimiCol a suitable in vitro model for metabolism studies in the gut microbiome.
PubMed: 37631043
DOI: 10.3390/ph16081128 -
Cureus Feb 2024Intussusception in adults is rare and is often associated with a pathologic lead point. While colonic adenocarcinoma is a common cause, well-differentiated colonic...
Intussusception in adults is rare and is often associated with a pathologic lead point. While colonic adenocarcinoma is a common cause, well-differentiated colonic neuroendocrine tumors are exceedingly rare. We present a unique case of an ileocolic intussusception due to a distal ascending colonic neuroendocrine tumor, emphasizing the diagnostic challenges and importance of prompt intervention. A 60-year-old male with a previous screening colonoscopy in June of 2022 presented to the Emergency Department with two days of cramping, right upper abdominal pain with associated nausea and two episodes of emesis. A Computed Tomography (CT) scan of the abdomen and pelvis revealed an ileocolic intussusception noted at the level of the hepatic flexure with a lead point. Emergent surgical intervention identified a mass in the distal ascending colon, and a right hemicolectomy with successful side-to-side functional end-to-end anastomosis was performed. Final pathology confirmed a well-differentiated stage III colonic neuroendocrine tumor. After a successful postoperative recovery, a full body Positron Emission Tomography (PET) scan was completed and resulted in no evidence of avid metastatic disease. The patient was placed in cancer remission. Intussusceptions in the adult population are uncommon, and the etiology typically involves a pathologic lead point causing intestinal invagination. In this case, prompt diagnosis and management resulted in successful health outcomes with reduced mortality and morbidity, as untreated intussusception can have devastating results. Given this patient's colonoscopy was approximately one year ago, the probability of a colonic neoplasm acting as the lead point was low. However, identification of the intussusception resulted in a timely and lifesaving emergent right hemicolectomy, as this stage III tumor has a five-year median survival rate of only 50% if left untreated. This case report highlights a rare case of adult ileocolic intussusception involving a lead point at the distal ascending colon identified as an uncommon, well-differentiated stage III neuroendocrine tumor. It showcases the importance of considering intussusception as a diagnosis when evaluating adults with abdominal pain for prompt and adequate intervention, especially when malignant lead points and bowel necrosis are suspected.
PubMed: 38529438
DOI: 10.7759/cureus.54823 -
The Kobe Journal of Medical Sciences Aug 2023Synchronous isolated external iliac lymph node metastasis of ascending colon cancer is extremely rare, and its treatment strategy has not been established. In this...
BACKGROUND
Synchronous isolated external iliac lymph node metastasis of ascending colon cancer is extremely rare, and its treatment strategy has not been established. In this report, we present a case of long-term survival after surgical resection and adjuvant chemotherapy for ascending colon cancer with synchronous isolated right external iliac lymph node metastasis.
CLINICAL CASE
A 65-year-old woman with anorexia and anemia was referred to our hospital. Colonoscopy and computed tomography revealed a three-quarter circumferential type 2 tumor from the cecum to the ascending colon, along with regional and right external iliac lymph node swelling. We diagnosed ascending colon cancer with right external iliac artery lymph node metastasis. An open right hemicolectomy with D3 and right external iliac lymph node dissections were performed. Results of histopathological examination showed that both lymph nodes were metastasized from ascending colon cancer. The patient received eight courses of capecitabine and oxaliplatin therapy as adjuvant chemotherapy. At 60 months after surgery, the woman has not had a recurrence.
CONCLUSIONS
Surgical resection and adjuvant chemotherapy may be an effective treatment strategy for synchronous isolated right external iliac lymph node metastases from ascending colon cancer.
Topics: Colon, Ascending; Lymphatic Metastasis; Lymph Nodes; Humans; Colonic Neoplasms; Ilium; Female; Aged; Colectomy; Chemotherapy, Adjuvant; Neoplasm Recurrence, Local; Capecitabine; Oxaliplatin; Antineoplastic Agents
PubMed: 37661703
DOI: No ID Found -
Journal of Medical Case Reports Jul 2023Adult Intussusception is an uncommon diagnosis, with one to three cases occurring in a population of 1,000,000 per year, primarily due to underlying pathological lead...
INTRODUCTION
Adult Intussusception is an uncommon diagnosis, with one to three cases occurring in a population of 1,000,000 per year, primarily due to underlying pathological lead points, of which 70% are malignant. Lipoma is the most common benign tumour, and primary adenocarcinoma is the most common malignant one. Early diagnosis and treatment are essential to reducing poor outcomes, including ischemia, perforation, and sepsis. Computed tomography imaging is a modality of choice for diagnosis. With a diagnostic accuracy of up to 100% and a specificity of up to 71%. Surgical intervention is the definitive treatment, and the decision is taken according to the situation.
CASE PRESENTATION
A 61-year-old Black African female presented to our surgical casualty with intermittent colicky abdominal pain for 1 month. After that, she started to experience abdominal swelling in the right iliac fossa. A CT scan confirmed the presence of colo-colic Intussusception, cecum-ascending-transverse colon. Laparotomy was scheduled, and a right hemicolectomy was done accordingly. Diagnosis of adenocarcinoma (Dukes stage B2) was made histologically.
CONCLUSION
Intussusception in adults is a challenging diagnosis requiring high clinical suspicion and has a high incidence of fatal complications. Colonic cancer can be worsening by any infection and chronic medical problem. CT imaging is the lifesaving modality of choice for diagnosis. Good patient outcomes depend on timely diagnosis and recruitment of a multi-disciplinary team.
Topics: Adult; Humans; Female; Middle Aged; Intussusception; Colonic Neoplasms; Abdominal Pain; Colectomy; Adenocarcinoma
PubMed: 37443097
DOI: 10.1186/s13256-023-04027-4 -
Clinical and Translational... May 2024Factors affecting mucosal permeability (MP) in ulcerative colitis (UC) are largely unknown. We aimed to investigate the difference in MP among patients with UC...
INTRODUCTION
Factors affecting mucosal permeability (MP) in ulcerative colitis (UC) are largely unknown. We aimed to investigate the difference in MP among patients with UC classified according to the colonic locations and to evaluate the correlations between local MP and endoscopic or histological activity of UC.
METHODS
The transepithelial electrical resistance (TER), which is inversely proportional to permeability, of tissue samples from the mucosa of the ascending colon, descending colon, and rectum of patients with UC and healthy individuals (HIs) was measured by using the Ussing chamber. TERs were compared between patients with UC and HIs and evaluated according to colonic locations and disease activity of UC.
RESULTS
Thirty-eight patients with UC and 12 HIs were included in this study. Both in HIs and patients with UC, MP tends to be higher in the anal side. TER in the ascending colon was significantly lower in patients with UC than in HIs (45.3 ± 9.0 Ω × cm 2 vs 53.5 ± 9.7 Ω × cm 2 , P = 0.01). The increased permeability in UC was observed also in the descending colon, only when the inflammation involved the location. A significant correlation between TER and endoscopic activity was found in the rectum only ( r = -0.49, P = 0.002). There were no significant correlations between TERs and UC histology.
DISCUSSION
The MP in the colon differs according to the colonic location. The ascending colon among patients with UC showed disease-specific changes in MP, whereas the MP is increased in proportion to the endoscopic activity in the rectum.
Topics: Humans; Colitis, Ulcerative; Male; Intestinal Mucosa; Female; Adult; Permeability; Middle Aged; Rectum; Electric Impedance; Colon, Ascending; Colonoscopy; Colon, Descending; Case-Control Studies; Severity of Illness Index; Colon; Aged; Young Adult
PubMed: 38363861
DOI: 10.14309/ctg.0000000000000692 -
European Review For Medical and... Oct 2023This study aims to investigate the correlation between the presence of microsatellite instability (MSI) and tumor budding, as well as their relationship with...
OBJECTIVE
This study aims to investigate the correlation between the presence of microsatellite instability (MSI) and tumor budding, as well as their relationship with histopathological parameters in patients diagnosed with colorectal adenocarcinoma.
PATIENTS AND METHODS
The study encompassed patients who underwent curative surgery to treat colorectal cancer. These patients were classified into groups based on their MSI status. The International Tumor Budding Consensus Conference (ITBCC) 2016 guidelines were utilized to identify tumor budding. Demographics, clinical data, tumor budding, and histopathological attributes were assessed across study groups.
RESULTS
The study analyzed 268 patients, out of which 32 (11.9%) were identified as having MSI. Microsatellite Stable (MSS) patients were placed in Group 1, and those with MSI were classified into Group 2. The average age was lower in Group 2 compared to Group 1 (55.9 years vs. 61.4 years, p=0.034). Tumor localizations in the caecum (5.9% vs. 18%) and the ascending colon (11.9% vs. 25%) were more prevalent in Group 2 (p=0.019). The occurrence of tumor budding (75% vs. 62.5%, p=0.133) and the budding degree in those with tumor budding were comparable between the groups. Poorly differentiated tumors were more prevalent in Group 2 (5.5% vs. 25%, p=0.001). Additionally, the tumor diameter was larger in Group 2 (3.58 cm vs. 4.35 cm, p=0.007).
CONCLUSIONS
MSI is a significant biomarker, possessing diagnostic, prognostic, and predictive value in colorectal cancer (CRC). Understanding the connection between MSI and tumor budding in CRC may provide clinicians with insights to enhance patient management.
Topics: Humans; Infant; Microsatellite Instability; Microsatellite Repeats; Colorectal Neoplasms; Adenocarcinoma; Prognosis
PubMed: 37916344
DOI: 10.26355/eurrev_202310_34154 -
The American Journal of Case Reports Mar 2024BACKGROUND Endoscopic biliary stent implantation is a recognized and effective method for the treatment of benign and malignant diseases of the bile duct and pancreas,...
BACKGROUND Endoscopic biliary stent implantation is a recognized and effective method for the treatment of benign and malignant diseases of the bile duct and pancreas, ensuring smooth bile drainage. Currently, stent migration is considered a long-term and complex process, and in most cases, stents are removed through endoscopy or expelled from the body through the intestinal cavity. In rare cases, stents lead to formation of duodenocolic fistulas. CASE REPORT We report a case of duodenal colon fistula caused by a biliary stent penetrating the duodenum and entering the ascending colon. We removed the stent through endoscopy and clamped the fistulas of the colon and duodenum separately with titanium clips. Due to the presence of large common bile duct stones, nasobiliary drainage was performed again. Later, laparoscopic choledocholithotomy was performed, and the patient was discharged after rehabilitation. CONCLUSIONS ERCP endoscopy must consider the possibility of stent displacement in patients with biliary stents. In the case of CBD biliary stent dislocation in the patient, continuous abdominal plain films and physical examinations are required until spontaneous discharge is confirmed. In addition, for patients with benign bile duct stenosis undergoing biliary drainage, doctors should urge them to return to the hospital on time to remove the stent. For patients with postoperative abdominal pain or peritonitis symptoms, abdominal CT scan confirmation is required and early intervention should be considered.
Topics: Humans; Intestinal Fistula; Drainage; Bile Ducts; Laparoscopy; Stents
PubMed: 38446721
DOI: 10.12659/AJCR.943020 -
World Journal of Clinical Cases Jan 2024Intestinal malrotation is a congenital defect of embryonic development caused by various teratogenic factors. In this condition, the intestinal tube, along with the...
BACKGROUND
Intestinal malrotation is a congenital defect of embryonic development caused by various teratogenic factors. In this condition, the intestinal tube, along with the superior mesenteric artery serving as the axis for the counterclockwise movement, is incomplete or abnormally rotated due to incomplete attachment of the mesentery and abnormal intestinal tube position. Such a case is usually asymptomatic and thus difficult to detect. Therefore, similar variant malformations are only found during an operation required for other abdominal diseases.
CASE SUMMARY
An elderly male patient was admitted to the hospital due to gastric cancer. An abdominal computed tomography (CT) scan with contrast revealed that the ascending and descending colon were parallel on the right side of the abdominal cavity, while the sigmoid colon extended into the right iliac fossa, allowing the diagnosis of congenital midgut malrotation. Following thorough preoperative preparation, the patient underwent laparoscopic radical gastrectomy to treat his gastric cancer. Intraoperatively, an exploration of the abdominal cavity uncovered the absence of the transverse colon. The distal colon at the hepatic flexure, along with the ascending colon, extended into the right iliac fossa, where it continued as the sigmoid colon. As planned, the laparoscopic radical gastrectomy was performed, and the patient was discharged from the hospital 7 d after the surgery.
CONCLUSION
Asymptomatic intestinal malrotation is best detected by CT, requiring no treatment but possibly interfering with the treatment of other diseases.
PubMed: 38292641
DOI: 10.12998/wjcc.v12.i1.210 -
Indian Journal of Nuclear Medicine :... 2024The primary objective was to establish the reference values for small-bowel and colonic transit within the context of the routine standard solid meal gastric emptying...
PURPOSE OF THE STUDY
The primary objective was to establish the reference values for small-bowel and colonic transit within the context of the routine standard solid meal gastric emptying scintigraphy (GES). The secondary objective was to compare the small-bowel and colonic transit between the anterior view and geometric mean methods.
MATERIALS AND METHODS
Twenty-nine healthy controls underwent routine GES, with additional imaging at 24 h if feasible. Small-bowel transit was assessed using the index of small-bowel transit (ISBT), calculated as the ratio of terminal ileal reservoir counts to total abdominal counts at 4 h. Colonic transit was evaluated using the colonic geometric center (CGC) by dividing the large bowel into four segments, with an additional fifth segment accounting for the eliminated counts. Reference values were established based on the fifth percentile or mean ± 1.96 standard deviations. Rapid small-bowel transit was visually determined. Paired Samples -test or Wilcoxon signed-rank test, as applicable, was used to compare the small-bowel and colonic transit between the anterior view and geometric mean methods. For comparing small-bowel and colonic transit between females and males, the Independent samples -test or Mann-Whitney -test was applied, as appropriate. The correlation between age and small-bowel and colonic transit was assessed using Spearman's rank correlation analysis.
RESULTS
The reference value for small-bowel transit using the geometric mean method was established as ISBT >37% at 4 h, whereas rapid small-bowel transit was defined as the first visualization of activity in the cecum-ascending colon within 2 h. For colonic transit, the reference range was established as CGC 2.8-4.4 at 24 h. Comparing the anterior view and geometric mean methods, there were no significant differences in ISBT and CGC values ( ≥ 0.125). Gender did not affect small-bowel and colonic transit in both methods ( ≥ 0.378), and age showed no significant correlations ( ≥ 0.053).
CONCLUSION
This study determined the reference values for small-bowel and colonic transit in the Indian population using routine GES, avoiding the need for additional complex procedures. The results may be generalized to the Indian population, emphasizing the importance of assessing small-bowel and colonic transit in patients with normal gastric emptying parameters to enhance gastrointestinal transit evaluation.
PubMed: 38817721
DOI: 10.4103/ijnm.ijnm_64_23