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Splenic segmentation

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https://www.readbyqxmd.com/read/29462751/primary-splenic-malignant-lymphoma-mimicking-metastasis-of-rectosigmoid-cancer-a-case-report
#1
Masaki Wakasugi, Yumiko Yasuhara, Yujiro Nakahara, Takashi Matsumoto, Hiroyoshi Takemoto, Ko Takachi, Kiyonori Nishioka, Kyotaro Yoshida, Satoshi Oshima
INTRODUCTION: Primary splenic malignant lymphoma is quite a rare disease, and its preoperative diagnosis is difficult. CASE PRESENTATION: An 80-year-old man was diagnosed with advanced rectosigmoid cancer with liver and splenic metastases, for which he underwent single-incision laparoscopic high anterior resection for the primary rectosigmoid cancer. After chemotherapy, he underwent laparoscopy-assisted splenectomy and open partial hepatectomy of segment 3 and segment 5/6 of the liver...
February 9, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29446669/segmental-arterial-mediolysis-abdominal-imaging-of-and-disease-course-in-111-patients
#2
Sailen G Naidu, Christine O Menias, Rahmi Oklu, Robert S Hines, Kinan Alhalabi, Gerges Makar, Fadi E Shamoun, Stanislav Henkin, Robert D McBane
OBJECTIVE: The purpose of this study is to identify the imaging characteristics of segmental arterial mediolysis (SAM) at presentation and establish the longitudinal course of disease. MATERIALS AND METHODS: We retrospectively identified patients with SAM at a single institution from 2000 through 2015. Diagnosis was based on published guidelines with multidisciplinary consensus. Imaging studies obtained at initial evaluation were reviewed to evaluate imaging findings and vascular territory distribution...
February 15, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29423167/a-rare-case-of-massive-lower-gastrointestinal-bleeding-from-a-ruptured-splenic-artery-aneurysm
#3
Ravi Maharaj, Barry Raghunanan, Wayne Mohammed, Rakesh Rambally, Vandana Devika Sookdeo, Dave Harnanan, Wayne A Warner
Splenic artery aneurysms (SAAs) are an extremely rare cause of asymptomatic massive lower gastrointestinal bleeding with less than a handful of patients surviving such a presentation. A 24-year-old female presented in shock after multiple episodes of massive rectal bleeding. Imaging revealed a heterogeneous mass arising from the tail of the pancreas eroding into the splenic flexure of the colon. Further episodes of bleeding led to an exploratory laparotomy. Intraoperatively, a suspected neoplastic process arising from the tail of the pancreas with contiguous involvement of the splenic flexure of the colon and the greater curvature of the stomach was noted...
February 2018: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/29377873/arc-of-riolan-preserving-splenic-flexure-takedown-during-anterior-resection-potentially-critical-to-prevent-acute-anastomotic-ischemia
#4
James Wei Tatt Toh, Ronnie Matthews, Seon-Hahn Kim
INTRODUCTION: The Arc of Riolan is a strategic vessel that provides collateral mesenteric circulation in 10% of individuals. The importance of identifying and preserving the arc of Riolan in reducing the risk of ischemia to the proximal anastomotic segment after high ligation anterior resection was evaluated. TECHNIQUE: The arc of Riolan is a vessel that crosses anterior to the inferior mesenteric vein horizontally below the level of the pancreas. A retrospective review of all recorded videos of laparoscopic and robotic low and ultra-low anterior resections was performed in September to December 2012 and prospective evaluation in April to July 2013...
March 2018: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/29361367/management-of-the-colorectal-polyp-referred-for-resection-a-case-matched-comparison-of-advanced-endoscopic-surgery-and-laparoscopic-colectomy
#5
Maysoon Gamaleldin, Cigdem Benlice, Conor P Delaney, Scott Steele, Emre Gorgun
BACKGROUND: Colonoscopy is the gold standard for colorectal screening and surveillance. Advanced endoscopic polypectomy techniques such as endoscopic submucosal dissection (ESD) have been introduced to remove large colorectal polyps. Our aim was to compare the outcomes of patients who underwent ESD with those of who underwent laparoscopic colectomy for benign colorectal polyps. METHODS: Patients with a preoperative diagnosis of benign colorectal polyp who underwent ESD or colectomy between 2011 and 2016 were case matched for age, sex, body mass index, American Society of Anesthesiologists status, polyp size, and location...
January 17, 2018: Surgery
https://www.readbyqxmd.com/read/29320559/characterization-of-the-naive-murine-antibody-repertoire-using-unamplified-high-throughput-sequencing
#6
Trisha A Rettig, Claire Ward, Bailey A Bye, Michael J Pecaut, Stephen K Chapes
Antibody specificity and diversity are generated through the enzymatic splicing of genomic gene segments within each B cell. Antibodies are heterodimers of heavy- and light-chains encoded on separate loci. We studied the antibody repertoire from pooled, splenic tissue of unimmunized, adult female C57BL/6J mice, using high-throughput sequencing (HTS) without amplification of antibody transcripts. We recovered over 90,000 heavy-chain and over 135,000 light-chain immunoglobulin sequences. Individual V-, D-, and J-gene segment usage was uniform among the three mouse pools, particularly in highly abundant gene segments, with low frequency V-gene segments not being detected in all pools...
2018: PloS One
https://www.readbyqxmd.com/read/29313164/treatment-of-nonocclusive-mesenteric-ischemia-with-type-b-aortic-dissection-using-intra-arterial-catheterization-after-trauma-surgery-case-report
#7
Sho Fujiwara, Yuki Sekine, Ryuichi Nishimura, Kazuya Tadasa, Shukichi Miyazaki
BACKGROUND: Nonocclusive mesenteric ischemia (NOMI) is a mesenteric arterial spasm and intestinal ischemia. This disease is a highly lethal disease because diagnosis and decision of appropriate treatments are often difficult. Operations cannot resolve the spasms and may worsen the situation. However, the safety and effectiveness of catheterization for NOMI with aortic dissection (AD) have not yet been elucidated. Here, we report a successful case of early diagnosis and treatment of NOMI with type B AD involving the superior mesenteric artery (SMA) using the intra-arterial infusion of a vasodilator via the SMA...
January 8, 2018: Surgical Case Reports
https://www.readbyqxmd.com/read/29197396/new-laparoscopic-procedure-for-left-sided-pancreatic-cancer-artery-first-approach-laparoscopic-ramps-using-3d-technique
#8
Michihiro Yamamoto, Masazumi Zaima, Hidekazu Yamamoto, Hideki Harada, Junichiro Kawamura, Masahiro Yamada, Tekefumi Yazawa, Junya Kawasoe
BACKGROUND: For left-sided pancreatic ductal adenocarcinoma (PDAC), radical antegrade modular pancreatosplenectomy (RAMPS) is a reasonable surgical approach for tumor-free margin resection and systemic lymph node clearance. In pancreaticoduodenectomy for PDAC, the superior mesenteric artery (SMA)-first approach (or the "artery-first approach") has become the standard procedure. With improvements in laparoscopic instruments and techniques, some surgeons attempted to apply laparoscopic RAMPS (L-RAMPS) for carefully selected patients with left-sided PDAC...
December 2, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29190873/-segmental-portal-hypertension-with-splenic-vein-thrombosis-caused-by-pancreatitis
#9
Luis Franco-Avilés, Federico I Hernández-Rocha, Ulises Mercado, Cristian G Malvido-Torres
BACKGROUND: Splenic vein thrombosis is a complication of pancreatic carcinoma, pancreatitis or pancreatic pseudocyst. It may lead to segmental portal hypertension and bleeding from gastric varices. CLINICAL CASE: A 31 year-old man was diagnosed with pancreatitis of two weeks of evolution and was referred to our hospital in 2013. He had a history of alcohol consumption. Physical examination showed no stigmata of liver cirrhosis. Laboratory analyses revealed hemoglobin 9...
November 2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/29078654/unusual-case-of-subxiphoid-uniportal-vats-right-upper-lobectomy-in-a-patient-with-interrupted-inferior-vena-cava-with-azygous-continuation
#10
Firas Emad Abu Akar, Chenlu Yang, Yiming Zhou, Lei Lin, Diego Gonzalez-Rivas, Lei Jiang
Interrupted IVC (also known as Azygos continuation of the inferior vena cava) is a relatively uncommon congenital condition with prevalence 1.5% (0.2-3%) of the general population (Bass et al.). Although it's usually asymptomatic condition, splenic or cardiac abnormalities could be associated (Hardwick et al.). Incidental diagnosis during prenatal ultrasound screening or by routine imaging is the most common scenario. Special attention is required during right side thoracic procedures surgical resections in order to avoid scarifying the azygos vein that could lead to fatal results (Effler et al...
2017: Journal of Visualized Surgery
https://www.readbyqxmd.com/read/28971378/endoscopic-ultrasound-guided-transmural-drainage-of-walled-off-pancreatic-necrosis-in-patients-with-portal-hypertension-and-intra-abdominal-collaterals
#11
Surinder S Rana, Ravi Sharma, Sobur Uddin Ahmed, Rajesh Gupta
BACKGROUND: Acute necrotizing pancreatitis (ANP) is complicated with segmental portal hypertension (PHT) and formation of venous collaterals. Presence of collaterals in vicinity of endoscopic transmural tract can lead to potentially catastrophic situation. Here, we report safety and outcome of EUS-guided transmural drainage of walled-off pancreatic necrosis (WOPN) in patients with PHT and intra-abdominal collaterals. METHODS: Retrospective analysis of collected database of patients (n=18; age 40...
September 2017: Indian Journal of Gastroenterology: Official Journal of the Indian Society of Gastroenterology
https://www.readbyqxmd.com/read/28740966/portal-vein-thrombosis-as-a-rare-cause-of-abdominal-pain-when-to-consider
#12
Cengiz Tavusbay, Erdinç Kamer, Turan Acar, İbrahim Kokulu, Haldun Kar, Özlem Gür
Extrahepatic portal vein thrombosis (PVT) is a rare condition that is characterized by the presence of thrombus within any segment of the portal vein, including the right and left intrahepatic branches. It may also extend to the splenic or superior mesenteric veins. Portal vein thrombosis may be related to cirrhosis or liver malignancy as well as to local inflammatory conditions in the abdomen and genetic or acquired thrombophilic diseases. Currently, PVT is being increasingly diagnosed due to advances in modern imaging techniques...
2017: Turkish Journal of Surgery
https://www.readbyqxmd.com/read/28642452/laparoscopic-treatment-of-colo-colic-intussusception-secondary-to-a-lipomatous-polyp
#13
Carlo V Feo, Daniele Marcello, Claudio F Feo
INTRODUCTION: Colo-colic intussusception is extremely rare in adults and few cases have been described secondary to a lypomatous polyp. CASE REPORT: We present the case of a 50-year old man with chronic abdominal pain who was diagnosed a colo-colic intussusception secondary to a lipoma of the left colon. The patient underwent laparoscopic resection of the splenic flexure without reduction, which occurred spontaneously after induction of the pneumoperitoneum, and final histology confirmed a submucosal lipoma with no evidence of malignancy...
June 12, 2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28524640/segmental-colonic-dilation-is-associated-with-premature-termination-of-high-amplitude-propagating-contractions-in-children-with-intractable-functional-constipation
#14
I J N Koppen, B P Thompson, E J Ambeba, V A Lane, D G Bates, P C Minneci, K J Deans, M A Levitt, R J Wood, M A Benninga, C Di Lorenzo, D Yacob
BACKGROUND: Colonic dilation is common in children with intractable functional constipation (FC). Our aim was to describe the association between segmental colonic dilation and colonic dysmotility in children with FC. METHODS: We performed a retrospective study on 30 children with intractable FC (according to the Rome III criteria) who had undergone colonic manometry and contrast enema within a 12-month time period. Colonic diameter was measured at 5 cm intervals from the anal verge up to the splenic flexure...
May 19, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28486175/ileocaecal-and-transverse-colonic-tuberculosis-mimicking-colonic-malignancy-a-case-report
#15
Prashant Lakhe, Asma Khalife, Jayashri Pandya
INTRODUCTION: Gastrointestinal tuberculosis is common in the developing world especially in the lower socioeconomic groups. In elderly, it may mimic malignancy. CASE PRESENTATION: A 46-year-old female presented with a 6 month history of diffuse pain in abdomen with low grade fever and loss of weight and appetite. Clinically, differential of malignancy of the large bowel was considered. The computerized tomography(CT) scan of the abdomen revealed a diffuse concentric long segmental thickening of terminal ileum, ileo ceacal junction, ascending colon and narrowing of the transverse colonic end of the splenic flexure suggesting an infective etiology...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28443482/subarachnoid-and-intraperitoneal-hemorrhage-secondary-to-segmental-arterial-mediolysis-a-case-report-and-review-of-the-literature
#16
Brian T Welch, Waleed Brinjikji, Andrew H Stockland, Giuseppe Lanzino
Background Segmental arterial mediolysis (SAM) is an uncommon or underdiagnosed arteriopathy that presents with life-threatening hemorrhage. SAM can affect the intracranial, spinal, and visceral arteries, with reported cases of concomitant intracranial and visceral hemorrhage. Case description We present the case of a 61-year-old male with concurrent subarachnoid and intraperitoneal hemorrhage caused by simultaneously bleeding posterior spinal artery and splenic artery pseudoaneurysms. The posterior spinal artery pseudoaneurysms were treated with selective injection of polyvinyl alcohol particles into the posterior spinal artery, while the splenic artery pseudoaneurysm was treated with Gelfoam embolization...
August 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28429033/clinics-in-diagnostic-imaging-176-acute-embolic-occlusion-of-the-coeliac-artery
#17
Chinthaka Appuhamy, Justin Kwan, Martin Weng Chin H'ng, Sriram Narayanan, Sundeep Punamiya
A 52-year-old man, who had a background of chronic heart disease and atrial fibrillation, as well as non-compliance with warfarin therapy, presented with a two-week history of worsening upper abdominal pain. Computed tomography mesenteric angiography showed complete embolic occlusion of the coeliac artery with resultant segmental splenic infarction, and thrombus within the left ventricle. A decision was made to proceed with catheter-directed thrombolysis. Subsequent follow-up angiogram at 12 hours showed successful treatment with complete dissolution of the coeliac embolus...
April 2017: Singapore Medical Journal
https://www.readbyqxmd.com/read/28395109/anatomo-radiological-patterns-of-pancreatic-vascularization-with-surgical-implications-clinical-and-anatomical-study
#18
Veronica Macchi, Edgardo Enrico Edoardo Picardi, Andrea Porzionato, Aldo Morra, Romeo Bardini, Marios Loukas, R Shane Tubbs, Raffaele De Caro
The pancreas receives multiple arterial sources that should be considered in patients undergoing pancreatic surgery. The aim of this study is to describe pancreatic vascularization and to explore the anatomical basis of postoperative complications. Ten specimens from unembalmed cadavers, including the retroperitoneal vessels and organs and spleen, were injected with acrylic resins to obtain vascular casts. Thirty computed tomography angiographies (CTA) of subjects with no pancreatic pathology (mean age 70.9 years) were also analyzed...
July 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28367761/segregating-bodily-isomerism-or-heterotaxy-potential-echocardiographic-correlations-of-morphological-findings
#19
Cornelia Tremblay, Rohit S Loomba, Peter C Frommelt, Donald Perrin, Diane E Spicer, Carl Backer, Robert H Anderson
BACKGROUND: Bodily isomerism, also referred to as heterotaxy, involves predominantly the thoracic organs, although other organs are usually abnormally positioned. Previously assessed on the basis of splenic anatomy, it is now understood that isomerism is better segregated on the basis of atrial appendage morphology. This allows for anticipation of associated findings. We aimed to assess the accuracy of segregation based on the morphology of the atrial appendages and other structures more easily identified by echocardiography...
October 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28327420/segmental-arterial-mediolysis-with-5-splenic-artery-aneurysms-a-rare-finding-of-a-rare-disease-case-report-and-literature-review
#20
Salah Termos, Ali Taqi, Hussein Hayati, Ameera J M S Alhasan, Mohammad Alali, Ayman Adi
INTRODUCTION: Splenic artery aneurysms (SAA) are uncommon findings. They are usually single and isolated; however they can be multiple; hence vasculopathy and segmental artery mediolysis may be considered. PRESENTATION OF CASE: In our manuscript we present a case of a 54year old multiparous lady who was discovered incidentally to have a diseased splenic artery containing five SSAs. The largest aneurysm was close to the takeoff of the vessel and the smallest was distal embedded in the splenic hilum...
2017: International Journal of Surgery Case Reports
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