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Diagnostic and Interventional Imaging Oct 2017Recent advances in imaging have resulted in marked changes in the investigation of the duodenum, which still remains primarily evaluated with videoendoscopy. However,... (Review)
Review
Recent advances in imaging have resulted in marked changes in the investigation of the duodenum, which still remains primarily evaluated with videoendoscopy. However, improvements in computed tomography (CT) and magnetic resonance (MR) imaging have made detection and characterization of duodenal mass-forming abnormalities easier. The goal of this pictorial review was to illustrate the most common conditions of the duodenum that present as mass-forming lesions with a specific emphasis on CT and MR imaging. MR imaging used in conjunction with duodenal distension appears as a second line imaging modality for the characterization of duodenal mass-forming lesions. CT remains the first line imaging modality for the detection and characterization of a wide range of duodenal mass-forming lesions.
Topics: Adenocarcinoma; Adenoma; Arteriovenous Malformations; Brunner Glands; Choristoma; Diverticulum; Duodenal Diseases; Duodenum; Gastrointestinal Stromal Tumors; Hamartoma; Hemangioma; Humans; Hyperplasia; Intestinal Polyposis; Leiomyoma; Lipoma; Lymphoma; Magnetic Resonance Imaging; Neuroendocrine Tumors; Pancreas; Tomography, X-Ray Computed; Tuberculosis, Gastrointestinal
PubMed: 28185840
DOI: 10.1016/j.diii.2017.01.004 -
The Journal of Histochemistry and... Nov 2021Non-ampullary duodenal adenocarcinoma (DAC) is a rare malignancy. Little information is available concerning the histopathological prognostic factors associated with...
Non-ampullary duodenal adenocarcinoma (DAC) is a rare malignancy. Little information is available concerning the histopathological prognostic factors associated with DAC. Carbonic anhydrases (CAs) are metalloenzymes catalyzing the universal reaction of CO hydration. Isozymes CAII, CAIX, and CAXII are associated with prognosis in various cancers. Our aim was to analyze the immunohistochemical expressions of CAII, CAIX, and CAXII in normal duodenal epithelium, duodenal adenomas, and adenocarcinoma and their associations with clinicopathological variables and survival. Our retrospective study included all 27 DACs treated in Oulu University Hospital during years 2000-2020. For comparison, samples of 42 non-ampullary adenomas were collected. CAII expression was low in duodenal adenomas and adenocarcinoma. CAIX expression in adenomas and adenocarcinoma was comparable with the high expression of normal duodenal crypts. Expression patterns in carcinomas were largely not related to clinicopathological features. However, low expression of CAII associated with poorer differentiation of the tumor (=0.049) and low expression of CAIX showed a trend for association with nodal spread, although statistical significance was not reached (=0.091). CAII and CAIX lost their epithelial polarization and staining intensity in adenomas. CAXII expression was not detected in the studied samples. CAs were not associated with survival. The prognostic value of CAII and CAIX downregulation should be further investigated. Both isozymes may serve as biomarkers of epithelial dysplasia in the duodenum.
Topics: Adenocarcinoma; Adult; Aged; Antigens, Neoplasm; Carbonic Anhydrase II; Carbonic Anhydrase IX; Cell Differentiation; Cohort Studies; Duodenal Neoplasms; Female; Humans; Male; Middle Aged
PubMed: 34636283
DOI: 10.1369/00221554211050133 -
The Journal of Pathology Mar 2024Gastroenteropancreatic neuroendocrine tumors (GEP-NETs) are heterogeneous malignancies that arise from complex cellular interactions within the tissue microenvironment....
Gastroenteropancreatic neuroendocrine tumors (GEP-NETs) are heterogeneous malignancies that arise from complex cellular interactions within the tissue microenvironment. Here, we sought to decipher tumor-derived signals from the surrounding microenvironment by applying digital spatial profiling (DSP) to hormone-secreting and non-functional GEP-NETs. By combining this approach with in vitro studies of human-derived organoids, we demonstrated the convergence of cell autonomous immune and pro-inflammatory proteins that suggests their role in neuroendocrine differentiation and tumorigenesis. DSP was used to evaluate the expression of 40 neural- and immune-related proteins in surgically resected duodenal and pancreatic NETs (n = 20) primarily consisting of gastrinomas (18/20). A total of 279 regions of interest were examined between tumors, adjacent normal and abnormal-appearing epithelium, and the surrounding stroma. The results were stratified by tissue type and multiple endocrine neoplasia I (MEN1) status, whereas protein expression was validated by immunohistochemistry (IHC). A tumor immune cell autonomous inflammatory signature was further evaluated by IHC and RNAscope, while functional pro-inflammatory signaling was confirmed using patient-derived duodenal organoids. Gastrin-secreting and non-functional pancreatic NETs showed a higher abundance of immune cell markers and immune infiltrate compared with duodenal gastrinomas. Compared with non-MEN1 tumors, MEN1 gastrinomas and preneoplastic lesions showed strong immune exclusion and upregulated expression of neuropathological proteins. Despite a paucity of immune cells, duodenal gastrinomas expressed the pro-inflammatory and pro-neural factor IL-17B. Treatment of human duodenal organoids with IL-17B activated NF-κB and STAT3 signaling and induced the expression of neuroendocrine markers. In conclusion, multiplexed spatial protein analysis identified tissue-specific neuro-immune signatures in GEP-NETs. Duodenal gastrinomas are characterized by an immunologically cold microenvironment that permits cellular reprogramming and neoplastic transformation of the preneoplastic epithelium. Moreover, duodenal gastrinomas cell autonomously express immune and pro-inflammatory factors, including tumor-derived IL-17B, that stimulate the neuroendocrine phenotype. © 2024 The Pathological Society of Great Britain and Ireland.
Topics: Humans; Neuroendocrine Tumors; Gastrinoma; Neuroimmunomodulation; Interleukin-17; Duodenal Neoplasms; Pancreatic Neoplasms; Tumor Microenvironment; Intestinal Neoplasms; Stomach Neoplasms
PubMed: 38229586
DOI: 10.1002/path.6241 -
Oncology 2022Nonampullary duodenal adenocarcinoma (NADA) is a rare disease. Although several prognostic factors have been reported for this disease, they remain controversial due to...
PURPOSE
Nonampullary duodenal adenocarcinoma (NADA) is a rare disease. Although several prognostic factors have been reported for this disease, they remain controversial due to their rarity. In this study, we retrospectively analyzed 54 cases of invasive NADA, focusing on the microsatellite instability (MSI) phenotype, programmed cell death-ligand 1 (PD-L1) expression, and prognostic factors.
METHODS
Expression of the PD-L1 protein and cell differentiation markers in tumors was detected by immunohistochemistry. Microsatellite markers (NR-21, NR-22, NR-24, BAT-25, and BAT-26) were amplified for MSI assessment by PCR.
RESULTS
The incidence of MSI in invasive NADA was 35.2%. No significant correlation between the MSI phenotype and clinicopathological factors was observed. Positive expression of PD-L1 by immune cells was common in advanced-stage disease (p = 0.054), and positive expression of PD-L1 in cancer cells correlated significantly with the histologically undifferentiated type (p = 0.016). Kaplan-Meier survival analysis demonstrated a significantly better overall survival (OS) in patients with MSI (p = 0.013) and at early-stage disease (p = 0.000) than in those with microsatellite-stable or at late tumor stages. Univariate and multivariate analyses showed that MSI (hazard ratio [HR]: 0.282, 95% confidence interval [CI]: 0.106-0.751, p = 0.011) and early tumor stage (stage I-II) (HR: 8.81, 95% CI: 2.545-30.500, p = 0.001) were independent better prognostic factors of OS.
CONCLUSIONS
MSI and early tumor stage (stage I-II) were independent better prognostic factors of OS. A high proportion of MSI phenotypes and positive PD-L1 expression may be helpful for identifying immune checkpoint inhibitors as a novel therapeutic strategy.
Topics: Adenocarcinoma; B7-H1 Antigen; Biomarkers, Tumor; Humans; Microsatellite Instability; Prognosis; Retrospective Studies
PubMed: 35350032
DOI: 10.1159/000519805 -
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 -
Korean Journal of Radiology 2015This pictorial review aims to illustrate the magnetic resonance imaging (MRI) findings and presentation patterns of anatomical variations and various benign and... (Review)
Review
This pictorial review aims to illustrate the magnetic resonance imaging (MRI) findings and presentation patterns of anatomical variations and various benign and malignant pathologies of the duodenum, including sphincter contraction, major papilla variation, prominent papilla, diverticulum, annular pancreas, duplication cysts, choledochocele, duodenal wall thickening secondary to acute pancreatitis, postbulbar stenosis, celiac disease, fistula, choledochoduodenostomy, external compression, polyps, Peutz-Jeghers syndrome, ampullary carcinoma and adenocarcinoma. MRI is a useful imaging tool for demonstrating duodenal pathology and its anatomic relationships with adjacent organs, which is critical for establishing correct diagnosis and planning appropriate treatment, especially for surgery.
Topics: Ampulla of Vater; Choledochal Cyst; Diverticulum; Duodenal Diseases; Duodenum; Humans; Magnetic Resonance Imaging; Pancreas; Pancreatic Diseases; Radiography
PubMed: 26576112
DOI: 10.3348/kjr.2015.16.6.1240 -
Der Chirurg; Zeitschrift Fur Alle... Sep 2021Periampullary neoplasms are a heterogeneous group of different tumor entities arising from the periampullary region, of which pancreatic ductal adenocarcinoma (PDAC) is... (Review)
Review
Periampullary neoplasms are a heterogeneous group of different tumor entities arising from the periampullary region, of which pancreatic ductal adenocarcinoma (PDAC) is the most common subgroup with 60-70%. As typical for pancreatic adenocarcinomas, periampullary pancreatic cancer is characterized by an aggressive growth and early systemic progression. Due to the anatomical location in close relationship to the papilla of Vater symptoms occur at an earlier stage of the disease, so that treatment options and prognosis are overall more favorable compared to pancreatic carcinomas at other locations. Nevertheless, the principles of treatment for periampullary pancreatic cancer are not substantially different from the standards for pancreatic cancer at other locations. A potentially curative approach for non-metastatic periampullary pancreatic cancer is a multimodal therapy concept, which includes partial pancreatoduodenectomy as a radical oncological resection in combination with a systemic adjuvant chemotherapy. As a result, long-term survival can be achieved in patients with favorable prognostic factors. In addition, with the continous development of surgery and systemic treatment potentially curative treatment concepts for advanced initially nonresectable tumors were also established, after completion of neoadjuvant treatment. This article presents the current surgical principles of a radical oncological resection for periampullary pancreatic cancer in the context of a multimodal treatment concept with an outlook for future developments of treatment.
Topics: Adenocarcinoma; Ampulla of Vater; Common Bile Duct Neoplasms; Duodenal Neoplasms; Humans; Pancreatic Neoplasms
PubMed: 34259884
DOI: 10.1007/s00104-021-01462-1 -
World Journal of Surgical Oncology Mar 2023The most recent edition of the American Joint Committee on Cancer Staging Manual (AJCC, 8th edition) relies only on tumor size for staging resectable pancreatic... (Review)
Review
OBJECTIVE
The most recent edition of the American Joint Committee on Cancer Staging Manual (AJCC, 8th edition) relies only on tumor size for staging resectable pancreatic adenocarcinoma, and the presence of duodenal wall invasion (DWI) no longer has an impact on staging. However, very few studies have evaluated its significance. In this study, we aim to evaluate the prognostic significance of DWI in pancreatic adenocarcinoma.
METHODS
We reviewed 97 consecutive internal cases of resected pancreatic head ductal adenocarcinoma, and clinicopathologic parameters were recorded. All cases were staged according to the 8th edition of AJCC, and the patients were divided into two groups based on the presence or absence of DWI.
RESULTS
Out of our 97 cases, 53 patients had DWI (55%). In univariate analysis, DWI was significantly associated with lymphovascular invasion and lymph node metastasis (AJCC 8th edition pN stage). In univariate analysis of overall survival, age > 60, absence of DWI, and African American race were associated with worse overall survival. In multivariate analysis, age > 60, absence of DWI, and African American race were associated with worse progression-free survival and overall survival.
CONCLUSION
Although DWI is associated with lymph node metastasis, it is not associated with inferior disease-free/overall survival.
Topics: Humans; Pancreatic Neoplasms; Prognosis; Adenocarcinoma; Lymphatic Metastasis; Carcinoma, Pancreatic Ductal
PubMed: 36872330
DOI: 10.1186/s12957-023-02962-6 -
Diagnostic and Interventional Radiology... May 2020Duodenal tumours are uncommon, but they can cause significant morbidity and mortality. As stomach and colon are a more common site of gastrointestinal malignancies,... (Review)
Review
Duodenal tumours are uncommon, but they can cause significant morbidity and mortality. As stomach and colon are a more common site of gastrointestinal malignancies, radiologists sometimes neglect the duodenum. Multidetector computed tomography (MDCT) and magnetic resonance imaging (MRI) can accurately locate and characterize mass-forming duodenal lesions, making them invaluable for the differential diagnosis and determining management strategies such as biopsy or surgery. Although conventional endoscopy continues to play an important role in the diagnosis of duodenal tumors, MDCT and MRI are very useful for evaluating the duodenal wall, extraduodenal space, and surrounding viscera, as well as the intraluminal content seen on endoscopy. This pictorial review aims to illustrate the most common benign and malignant mass-forming duodenal lesions and to focus on the imaging features that are most helpful in reaching the correct diagnosis.
Topics: Adenocarcinoma; Aged; Aged, 80 and over; Diagnosis, Differential; Duodenal Neoplasms; Endoscopy, Gastrointestinal; Female; Gastrointestinal Neoplasms; Gastrointestinal Stromal Tumors; Humans; Leiomyoma; Lipoma; Lymphoma; Magnetic Resonance Imaging; Male; Middle Aged; Multidetector Computed Tomography; Neoplasm Metastasis; Neuroendocrine Tumors; Polyps; Radiologists
PubMed: 32209505
DOI: 10.5152/dir.2019.19241 -
Radiologia 2023Groove pancreatitis is an uncommon type of chronic pancreatitis that affects the space between the head of the pancreas, the second portion of the duodenum, and the...
Groove pancreatitis is an uncommon type of chronic pancreatitis that affects the space between the head of the pancreas, the second portion of the duodenum, and the common bile duct. The main trigger is chronic alcohol abuse, which eventually leads to leakage of pancreatic juices into the pancreaticoduodenal groove, causing inflammation and fibrosis. The main differential diagnosis is with pancreatic adenocarcinoma, which is more common than groove pancreatitis. Different imaging techniques make it possible to identify various findings (e.g., duodenal thickening or duodenal and paraduodenal cysts, which are characteristic of groove pancreatitis) that sometimes enable differentiation between groove pancreatitis and other entities, although there are no specific findings for each of them. Sometimes biopsy or surgery is required to establish the definitive diagnosis. The treatment of groove pancreatitis is usually conservative, but in cases in which the symptoms do not improve, interventional procedures (biliary drainage) or surgery (Whipple technique) can be done.
Topics: Humans; Pancreatic Neoplasms; Adenocarcinoma; Pancreatitis, Chronic; Pancreas
PubMed: 36842788
DOI: 10.1016/j.rxeng.2021.07.005