11,578 results match your criteria Mesenteric Tumors

A novel classification of portal venous tumor invasion to predict residual tumor status after surgery in patients with pancreatic neuroendocrine neoplasms.

J Cancer Res Clin Oncol 2021 May 13. Epub 2021 May 13.

Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.

Purpose: To elucidate whether portal venous tumor invasion (PVTI) is a prognostic factor for patients with pancreatic neuroendocrine neoplasms (Pan-NENs).

Methods: From 2002 to 2019, 240 patients with Pan-NEN were included to examine prognostic factors. PVTI based on computed tomography (CT) images are classified into four types: no PVTI (Vp0/1), PVTI not invading the superior mesenteric vein (Vp2), PVTI invading the superior mesenteric vein or portal vein (Vp3), and PVTI invading the portal bifurcation (Vp4). Read More

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Cutaneous desmoid-type fibromatosis: a rare case with molecular profiling.

J Cutan Pathol 2021 May 12. Epub 2021 May 12.

Department of Pathology, Stanford University, Stanford, California.

Fibromatoses encompass a broad group of histopathologically similar fibroblastic/myofibroblastic proliferations with divergent clinical manifestations and behavior. Deep (desmoid-type) fibromatoses are typically large, rapidly growing, and locally aggressive tumors that occur in the abdominal wall, mesentery, and extraabdominal soft tissue, principally the musculature of the trunk and extremities. Most sporadic cases of desmoid fibromatosis harbor inactivating mutations in CTNNB1, the gene encoding beta-catenin. Read More

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Primary Small Intestinal Sarcomatoid Carcinoma: Report of a Rare Case and Literature Review.

Case Rep Oncol 2021 Jan-Apr;14(1):538-544. Epub 2021 Mar 22.

Department of Surgery, Yoshida General Hospital, Akitakata, Japan.

Sarcomatoid carcinoma (SC) is a rare malignant tumor with properties of both epithelial and mesenchymal carcinomas. SC has been reported in various organs, but the number of reports for each type is small. Small intestinal tumors make up about 3-6% of gastrointestinal malignancies. Read More

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[A Case of Pancreaticoduodenectomy for Vater Papillary Cancer with Celiac Axis Stricture].

Gan To Kagaku Ryoho 2021 Apr;48(4):572-574

Dept. of Surgery, Ikeda City Hospital.

During the follow‒up of Vater papillary adenoma, a 74‒year‒old man was admitted to our hospital with a chief complaint of upper abdominal pain and diagnosed as cholangitis with obstructive jaundice. Cholestasis had been considered to be caused by papillary adenoma, however, EUS exam showed continuous bile duct wall irregularity from papilla of Vater. So we diagnosed as papillary carcinoma with extension to the distal bile duct. Read More

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[Mucinous Cystadenocarcinoma with a Sarcomatous Component Arising from the Sigmoid Mesocolon-A Case Report].

Gan To Kagaku Ryoho 2021 Apr;48(4):569-571

Dept. of Surgery, Obihiro Daiichi Hospital.

A 53‒year‒old female was referred to our hospital for abdominal pain. A cystic tumor evolving since 12 years, which was suspected of being a lymphocyst, was detected in her left lower abdomen. Computed tomography(CT)revealed the cystic tumor with enhanced 80 mm enlarged regions. Read More

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Functional paraganglioma with tumor thrombus in the inferior vena cava, first case report.

Transl Androl Urol 2021 Apr;10(4):1813-1820

Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.

Pheochromocytoma (PHEO) is a rare neuroendocrine that tumor originated from the adrenal medulla that secrets catecholamines. Tumors from extra-adrenal chromaffin tissues are called extra-adrenal PHEO or paraganglioma (PGL). To our knowledge, adrenal PHEO and subclinical PGL with inferior vena cava (IVC) invasion had been sporadically reported, while functional PGL with IVC tumor thrombus has not been publicly reported yet. Read More

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Pancreaticoduodenectomy for hepatic portal lymph node metastasis after hepatic resection for hepatocellular carcinoma: A clinical case report.

Int J Surg Case Rep 2021 Apr 27;82:105921. Epub 2021 Apr 27.

Center for Pathology and Cytology, Bach Mai Hospital, Viet Nam.

Introduction: In 2018, Hepatocellular carcinoma (HCC) was predicted to be the sixth most commonly diagnosed cancer. Extra-hepatic metastasis due to HCC is a poor prognostic factor, depending on the stage of the disease.

Presentation Of Case: We report a case of a 52-years old male who had undergone Segment 5 (S5) hepatectomy for HCC of 4. Read More

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Impact of Inferior Mesenteric Artery Lymph Node Metastasis on the Prognosis of Left-sided Colorectal Cancer.

Anticancer Res 2021 May;41(5):2533-2542

Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan.

Background/aim: This study aimed to investigate the impact of the inferior mesenteric artery (IMA) lymph node metastasis [IMALN (+)] on prognosis in left-sided colorectal cancer (LCRC).

Patients And Methods: A total of 285 patients with stage III LCRC and 118 patients with stage IV LCRC who underwent resection of primary tumor between 2005 and 2016 were included.

Results: IMALN (+) patients (n=10) had worse overall survival (OS) than patients without IMA lymph node metastasis [IMALN (-); n=275] in stage III LCRC (p=0. Read More

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Laparoscopic distal pancreatectomy in a patient with aberrant splenic artery originating from the superior mesenteric artery: A case report.

Medicine (Baltimore) 2021 May;100(18):e25704

Department of Hepatobiliary and Pancreatic Surgery.

Rationale: Splenic artery originating from the superior mesenteric artery is extremely rare. Because of this, its significance in laparoscopic distal pancreatectomy has never been reported. Here, we present the first case of laparoscopic distal pancreatectomy in a patient with a splenic artery arising from the superior mesenteric artery. Read More

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Influence of TRAIL Deficiency on Th17 Cells and Colonic Microbiota in Experimental Colitis Mouse Model.

Am J Med Sci 2021 Apr 28. Epub 2021 Apr 28.

Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China. Electronic address:

Background: The abnormalities of tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) are implicated in various autoimmune disorders and tumors. This study investigated the influence of TRAIL deficiency on Th17 cells and colonic microbiota in experimental colitis mouse model.

Methods: Mice were randomly divided into 4 groups: wild-type, TRAIL gene knock-out (TRAIL), wild-type colitis and TRAIL colitis groups. Read More

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An accidental finding of a giant intra-abdominal mass.

Acta Chir Belg 2021 Apr 27:1-10. Epub 2021 Apr 27.

Department of Surgery, Antwerp University Hospital, Antwerp, Antwerp, Belgium.

Introduction: Mesenteric cysts are rare intra-abdominal tumours often found incidentally on imaging studies or during surgery. The clinical presentation is various with most subjects being asymptomatic, but complications can occur such as torsion, rupture, hemorrhage or obstruction of nearby structures. The etiology of mesenteric cysts remains uncertain. Read More

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INI1-negative colorectal undifferentiated carcinoma with rhabdoid features and postoperative rapidly growing liver metastases: a case report and review of the literature.

Surg Case Rep 2021 Apr 27;7(1):104. Epub 2021 Apr 27.

Division of Gastrointestinal, Breast and General Surgery, Department of Surgery, Shiga University of Medical Science, Tsukinowa-cho, Seta, Otsu, Shiga, 520-2192, Japan.

Background: Malignant tumors with rhabdoid features are extremely rare. They can occur in various organs, including the gastrointestinal tract, with common clinical features of high malignancy and poor prognosis.

Case Presentation: A 41-year-old man visited our hospital complaining of lower abdominal pain and fever. Read More

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Impact of Esophagojejunal Reconstruction without Division of the Mesentery for Total Laparoscopic Total Gastrectomy.

J Gastric Cancer 2021 Mar 25;21(1):63-73. Epub 2021 Mar 25.

Department of Stomach Surgery, Asan Medical Center, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.

Purpose: This study aimed to compare the surgical outcomes of total laparoscopic total gastrectomy without mesentery division (LTG without MD) and conventional total laparoscopic total gastrectomy (CLTG), as well as evaluate the appropriate method for esophagojejunostomy (EJ) reconstruction after total laparoscopic total gastrectomy (TLTG).

Materials And Methods: We retrospectively analyzed data from 301 consecutive patients who underwent TLTG for upper or middle third gastric cancer between January 2016 and May 2019. After propensity score matching, 95 patients who underwent LTG without MD and 95 who underwent CLTG were assessed. Read More

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Robotic complete mesocolic excision with central vascular ligation for right colonic tumours - a propensity score-matching study comparing with standard laparoscopy.

BJS Open 2021 Mar;5(2)

Pathology & Data Analytics, Leeds Institute of Medical Research at St. James's, University of Leeds, UK.

Background: Laparoscopic complete mesocolic excision (CME) of the right colon with central vascular ligation (CVL) is a technically demanding procedure. This study retrospectively evaluated the feasibility, safety and oncological outcomes of the procedure when performed using the da Vinci® robotic system.

Methods: A prospective case series was collected over 3 years for patients with right colonic cancers treated by standardized robotic CME with CVL using the superior mesenteric vessels first approach. Read More

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Abdominal elastotic lesions. A clinicopathologic study of 23 cases.

Rom J Morphol Embryol 2020 Jul-Sep;61(3):841-851

Department of Medical and Surgical Sciences, University of Cantabria, Santander, Spain;

Abdominal elastotic deposits are uncommon lesions that often presents as polyps. They show three histological patterns: fibroelastosis, angioelastosis, and elastofibroma. We describe 23 cases including rare locations, such as mesentery, greater omentum, hernia sac, spleen, peripancreatic fat, and hypodermal fat. Read More

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Gastrointestinal Stromal Tumors (GISTs) as Incidental Findings in Gynecological Surgery.

Int J Gynecol Pathol 2021 Apr 1. Epub 2021 Apr 1.

Department of Cellular Pathology, Birmingham Women's and Children's NHS Foundation Trust, Birmingham (W.B., J.V., A.W., R.G.) Derby Gynaecological Cancer Centre, Department of Obstetrics and Gynaecology, Royal Derby Hospital, Derby (A.P.), UK.

Gastrointestinal stromal tumors (GISTs) are mesenchymal tumors of the gastrointestinal tract that may be diagnosed incidentally as a part of intra-abdominal surgery for other diseases. This is a single center review to document the incidental finding of GIST at surgery for gynecological malignancies during a 10-yr period. Sixteen cases of incidental GISTs were identified in women ranging in age from 39 to 82 yr. Read More

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Hepatic Arterial Buffer Response in Liver Radioembolization and Potential Use for Improved Cancer Therapy.

Cancers (Basel) 2021 Mar 26;13(7). Epub 2021 Mar 26.

Nuclear Medicine Department, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium.

Liver radioembolization is a treatment option for unresectable liver cancers, performed by infusion of Y or Ho loaded spheres in the hepatic artery. As tumoral cells are mainly perfused via the liver artery unlike hepatic lobules, a twofold tumor to normal liver dose ratio is commonly obtained. To improve tumoral cell killing while preserving lobules, co-infusion of arterial vasoconstrictor has been proposed but with limited success: the hepatic arterial buffer response (HABR) and hepatic vascular escape mechanism hamper the arterioles vasoconstriction. Read More

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Neoadjuvant Everolimus for Adult Giant Mesenteric Cystic Lymphangioma with mTOR Pathway Activation.

Oncologist 2021 Apr 2. Epub 2021 Apr 2.

Department of Medical Oncology, Institut Curie Hospital, Paris, France.

Cystic lymphangioma are rare benign vascular or lymphatic tumors, diagnosed mostly in newborns or children, that may become life-threatening because of local invasiveness. Surgical "en-bloc" resection with negative margins is the only curative treatment, but some patients are diagnosed with unresectable tumors. We describe the case of a young adult with giant unresectable mesenteric lymphangioma. Read More

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Gastroenteropancreatic neuroendocrine neoplasms: A clinical snapshot.

World J Gastrointest Surg 2021 Mar;13(3):231-255

Department of Endocrinology and Metabolism, Lancashire Teaching Hospitals NHS Trust, PR2 9HT, Preston, The University of Manchester, Oxford Road M13 9PL, Manchester Metropolitan University, All Saints Building M15 6BH, Manchester, United Kingdom.

Our understanding about the epidemiological aspects, pathogenesis, molecular diagnosis, and targeted therapies of neuroendocrine neoplasms (NENs) have drastically advanced in the past decade. Gastroenteropancreatic (GEP) NENs originate from the enteroendocrine cells of the embryonic gut which share common endocrine and neural differentiation factors. Most NENs are well-differentiated, and slow growing. Read More

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[Investigation for Arc of Riolan-Conserving High Ligation Using Simulation CT Colonography in Preoperative Colorectal Cancer].

Gan To Kagaku Ryoho 2021 Mar;48(3):428-430

Dept. of Surgery, International University of Health and Welfare Ichikawa Hospital.

Background And Purpose: Simulation computed tomography colonography(sCTC), which combines CTC and 3-dimensional vascular imaging, is popular for the surgery of colorectal cancer. We experience anomaly, called arc of Riolan(aR), rarely but its definition and details are unclear. Using sCTC, we identified aR and investigated the simulation of aR-conserving high ligation. Read More

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Neoadjuvant Hyperthermia and Chemoradiotherapy for Borderline Resectable Pancreatic Cancer.

Gan To Kagaku Ryoho 2021 Mar;48(3):388-390

Dept. of Surgery, Munakata Suikokai General Hospital.

Pancreatic cancer(PC)is associated with poor prognosis and low resectability rates. Currently, only 15-20% of all patients are candidates for upfront surgery at the time of diagnosis, which offers the chance of long-term survival. In recent years, patients with borderline resectable PC(BR-PC)have been treated with surgery following neoadjuvant chemoradiotherapy or intensive multi-agent chemotherapy. Read More

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Castleman disease and paraneoplastic pemphigus in a pregnant woman: A case report.

Beibei Cui Hui Lin

Medicine (Baltimore) 2021 Apr;100(13):e24990

Department of Rheumatology and Immunology, West China hospital, Sichuan University, Chengdu, Sichuan Province, PR China.

Rationale: Orogenital ulcers can be observed in various conditions, such as Behcet disease, infection and also paraneoplastic pemphigus (PNP). Castleman disease (CD), which is a rare cause of paraneoplastic pemphigus represents a heterogenous lymphoproliferative disorder of unknown etiology. Paraneoplastic pemphigus associated with CD in pregnancy is rare and has not been reported yet. Read More

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Evaluating Nationwide Application of Minimally Invasive Surgery for Treatment of Small Bowel Neuroendocrine Neoplasms.

World J Surg 2021 Mar 30. Epub 2021 Mar 30.

Department of Surgery, Amsterdam UMC, University of Amsterdam, Cancer Center Amsterdam, Amsterdam, The Netherlands.

Aim: Open resection of small bowel neuroendocrine neoplasms (SB-NEN) is still considered standard-of-care, mainly because of frequently encountered multifocality and central mesenteric masses. The aim of this study was to evaluate surgical approach for SB-NEN at a national level and determine predictors for overall survival.

Methods: Patients with SB-NEN who underwent resection between 2005 and 2015 were included from the Netherlands Cancer Registry. Read More

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Infiltrating Angiosarcoma of the Ascending, Arch and Descending Aorta Manifested as Acute Mesenteric Ischemia.

Vasc Specialist Int 2021 Mar;37(1):46-49

Department of Vascular Surgery, Brotzu Hospital, Cagliari, Italy.

Primary malignant aortic tumors are rare and aggressive. Most cases are diagnosed at advanced stages or during autopsies with a median overall survival of 8 months from diagnosis. We present the case of a 59-year-old male with angiosarcoma involving all segments of the thoracic aorta and a large floating thrombus causing acute mesenteric ischemia, which was treated successfully with embolectomy. Read More

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Small Intestinal Hemangioma: A Case Report.

Am J Case Rep 2021 Mar 28;22:e929618. Epub 2021 Mar 28.

Department of Internal Medicine, São Paulo State University (Unesp), Medical School, Botucatu, SP, Brazil.

BACKGROUND Hemangiomas are benign vascular neoplasms that originate from fast-growing embryonic mesodermal tissue and have a proliferation of endothelial cells, which manifest themselves in different forms, locations, and dimensions. Owing to its rarity and similarity of symptoms with other chronic bowel diseases, intestinal hemangioma is a differential diagnosis to be considered in patients presenting with symptoms such as abdominal pain and anemia. CASE REPORT A 46-year-old woman with a history of diffuse abdominal pain and abdominal distension for 20 years presented with a worsening of symptoms in the past year. Read More

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Metastatic Infiltration of Anaplastic Carcinoma of the Pancreas Into the Portal Venous System: A Masquerading Cause of Expansive Portal Venous Thrombosis.

Am J Case Rep 2021 Mar 26;22:e929678. Epub 2021 Mar 26.

Department of General Medicine, Saga University Hospital, Saga City, Saga, Japan.

BACKGROUND The portal vein thrombosis caused by a carcinoma of the pancreas or liver could be a diagnostic challenge. There are some cases which could be diagnosed only by observing changes in patients' clinical manifestations or imaging studies over time. CASE REPORT A 63-year-old man experienced exacerbation of chronic low back pain for 1 month, with abdominal distention. Read More

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Boy with Abdominal Pain.

Ann Emerg Med 2021 04;77(4):462-468

Emergency Department, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, Taiwan.

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A case of 18 years disease-free survival after combined pancreatoduodenectomy and hemicolectomy for carcinosarcoma of the transverse colon.

Surg Case Rep 2021 Mar 25;7(1):76. Epub 2021 Mar 25.

Center of Gastroenterology and Oncology, IMS Ota Chuo General Hospital, 875-1 Higashi-imaizumicho, Ota, 373-8513, Japan.

Background: Ascertaining the origin of large tumors located in the region of the pancreas head and adjacent mesocolon can pose a challenge preoperatively. En bloc pancreatoduodenectomy with hemicolectomy is often required towards curative tumor resection (R0) of malignant tumors in this region.

Case Presentation: Herein we report a case of a 48-year-old man with two contiguous masses each 5 cm in size, located in the pancreatic head. Read More

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Aggressive fibromatosis of the right colon mimicking a gastrointestinal stromal tumour: a case report.

J Int Med Res 2021 Mar;49(3):300060521994927

Centre for Radiology and MRI, University Clinical Centre of Serbia, Belgrade, Serbia.

Aggressive fibromatosis is a rare type of intra-abdominal desmoid tumour that usually involves the small bowel mesentery. It is a locally-invasive lesion, with a high rate of recurrence, but without metastatic potential. Aggressive fibromatosis is seen more often in young female patients. Read More

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Leiomyomatosis peritonealis disseminata mimicking peritoneal carcinomatosis 13 years after laparoscopic uterine myomectomy: A case report.

Int J Surg Case Rep 2021 Apr 11;81:105745. Epub 2021 Mar 11.

Division of General Surgery, Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, ROC. Electronic address:

Introduction: Leiomyomatosis peritonealis disseminata (LPD) is a rare clinical condition that can be challenging to diagnose because its clinical features mimic other conditions. We present a case of LPD mimicking peritoneal carcinomatosis 13 years after laparoscopic uterine myomectomy using a power morcellator. The aim of this paper is to report a rare case which surgeons can learn from and to provide more clinical information for further studies to investigate LPD. Read More

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