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Cystic pancreatic tumors

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https://www.readbyqxmd.com/read/29022085/rare-pancreatic-tumors
#1
Jonathan Steinman, Atif Zaheer, Michael D Kluger, Helen Remotti, Elizabeth M Hecht
In this review, we will focus on rare pancreatic tumors. Most of these tumors do not have distinct characteristic appearances so the key to diagnosis requires a combination of imaging appearance, laboratory data, patient demographics, and associated medical syndromes in order to narrow the differential diagnosis. Nonetheless, imaging plays a vital role in narrowing the differential and guiding management. While there are many variant pathologic entities that cannot be encompassed by a single review, we aim to illustrate the imaging appearance of less common pancreatic tumors highlighting key distinctive diagnostic characteristics and discuss the implications for management...
October 11, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28990381/enucleation-of-non-invasive-tumors-in-the-proximal-pancreas-indications-and-outcomes-compared-with-standard-resections
#2
Wen-Jie Lu, Hao-Lei Cai, Ma-Dong Ye, Yu-Lian Wu, Bin Xu
OBJECTIVE: The aim of this study was to evaluate the safety and efficiency of enucleation (EU) for proximal pancreatic non-invasive neoplasms. METHODS: Patients with solitary non-invasive neoplasms in the proximal pancreas from January 1998 to April 2014 at the Second Affiliated Hospital of Zhejiang University, Hangzhou, China were included. Different operations and outcomes were analyzed. RESULTS: A total of 123 patients were enrolled. Forty patients (32...
2017: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/28983920/transcriptional-variations-in-the-wider-peritumoral-tissue-environment-of-pancreatic-cancer
#3
Andrea S Bauer, Petr V Nazarov, Nathalia A Giese, Stefania Beghelli, Anette Heller, William Greenhalf, Eithne Costello, Arnaud Muller, Melanie Bier, Oliver Strobel, Thilo Hackert, Laurent Vallar, Aldo Scarpa, Markus W Büchler, John P Neoptolemos, Stephanie Kreis, Jörg D Hoheisel
Transcriptional profiling was performed on 452 RNA preparations isolated from various types of pancreatic tissue from tumour patients and healthy donors, with a particular focus on peritumoral samples. Pancreatic ductal adenocarcinomas (PDAC) and cystic tumours were most different in these non-tumorous tissues surrounding them, whereas the actual tumours exhibited rather similar transcript patterns. The environment of cystic tumours was transcriptionally nearly identical to normal pancreas tissue. In contrast, the tissue around PDAC behaved a lot like the tumour, indicating some kind of field defect, while showing far less molecular resemblance to both chronic pancreatitis and healthy tissue...
October 6, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28948530/pancreatic-neuroendocrine-tumor-with-complete-replacement-of-the-pancreas-by-serous-cystic-neoplasms-in-a-patient-with-von-hippel-lindau-disease-a-case-report
#4
Shimpei Maeda, Fuyuhiko Motoi, Shuhei Oana, Kyohei Ariake, Masamichi Mizuma, Takanori Morikawa, Hiroki Hayashi, Kei Nakagawa, Takashi Kamei, Takeshi Naitoh, Michiaki Unno
BACKGROUND: von Hippel-Lindau disease is a dominantly inherited multi-system syndrome with neoplastic hallmarks. Pancreatic lesions associated with von Hippel-Lindau include serous cystic neoplasms, simple cysts, and neuroendocrine tumors. The combination of pancreatic neuroendocrine tumors and serous cystic neoplasms is relatively rare, and the surgical treatment of these lesions must consider both preservation of pancreatic function and oncological clearance. We report a patient with von Hippel-Lindau disease successfully treated with pancreas-sparing resection of a pancreatic neuroendocrine tumor where the pancreas had been completely replaced by serous cystic neoplasms, in which pancreatic function was preserved...
September 25, 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28942226/intraductal-papillary-mucinous-neoplasm-of-the-pancreas-associated-with-neuroendocrine-tumor-a-case-report
#5
M Boge, B Gurses, M Vural, S Yilmaz, S Goksel, O Bilge
INTRODUCTION: Intraductal papillary mucinous neoplasm is an uncommon cystic tumor of pancreas that can be associated with ductal adenocarcinoma. Coexistence of pancreatic IPMN and neuroendocrine tumor is very rare. Here, we report the imaging features of mixed type intraductal papillary mucinous neoplasia of the pancreas with high grade dysplasia together with neuroendocrine carcinoma and perform review of the literature. PRESENTATION: A 68-year old patient has been evaluated for possible IPMN that was suspected during ultrasound...
September 14, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28890216/my-treatment-approach-pancreatic-cysts
#6
Omer Basar, William R Brugge
Our treatment approach for either symptomatic or incidentally found pancreatic cysts continues to improve. The true incidence of pancreatic cysts is not known, and pancreatic cystic neoplasms, especially intraductal papillary mucinous neoplasms, are currently most commonly diagnosed and resected. This is a result of increasing awareness, widespread availability of imaging, and better understanding of the nature of pancreatic cysts as well. Recent studies on molecular analysis and devices such as microbiopsy forceps help us better define and select the treatment approach to alleviate symptoms and to prevent malignant tumors while avoiding unnecessary surgery...
September 7, 2017: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/28883297/a-case-of-serous-cystic-neoplasm-with-form-changes-on-an-image-obtained-during-long-term-follow-up
#7
Katsunori Matsueda, Tatsuya Toyokawa, Takafumi Makino, Yuya Ueda, Masahiro Sakata, Isao Fujita, Jouichiro Horii, Takako Murakami, Masaru Inagaki
A 45-year-old man presented with a 24-mm macrocystic lesion at the pancreatic head, which was detected by computed tomography (CT). During six years of follow-up, CT, MRI, and endosonographic images of the cystic lesion showed that the cystic lesion had enlarged to 42mm, with the appearance of a thick cyst wall. Since a cystic tumor could not be ruled out, surgery was performed. Pathological examination of the resected specimen revealed microcystic-type serous cystadenoma of the pancreas, with the presence of internal bleeding in the cyst and hemorrhage and thick fibrous tissue in the cyst wall...
2017: Nihon Shokakibyo Gakkai Zasshi, the Japanese Journal of Gastro-enterology
https://www.readbyqxmd.com/read/28875972/-gastroenterological-manifestations-of-von-hippel-lindau-disease-a-case-report
#8
Joanna Koniusz, Krzysztof Dąbkowski, Katarzyna Buczek, Aleksandra Gomółka, Teresa Starzyńska
Gastrointestinal organs are involved in the course of von Hippel Lindau disease. Typically pancreas in von Hippel Lindau syndrome is a site of cystic and solid tumors. Differential diagnosis of pancreatic lesions includes benign lesions (cysts, serous cystic adenomas), potentially malignant (neuroendocrine) and malignant tumors(metastases).In this work we present a patient with VHL syndrome with pancreatic cysts and neuroendocrine tumor.
August 21, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28868481/the-role-of-endoscopic-ultrasound-in-the-diagnostic-assessment-of-subepithelial-lesions-of-the-upper-gastrointestinal-tract
#9
Francisca Dias de Castro, Joana Magalhães, Sara Monteiro, Sílvia Leite, José Cotter
INTRODUCTION: The identification of subepithelial lesions is a relatively frequent finding at endoscopy however their natural history is not well known. Our aim was to analyze the role of endoscopic ultrasound (EUS) in the diagnostic approach of subepithelial lesions of the upper gastrointestinal tract. METHODS: Retrospective study which included 324 patients undergoing upper radial EUS for evaluation of subepithelial lesions from 2008 to 2014. The EUS features, presumptive diagnosis and management decision were analyzed...
November 2016: GE Port J Gastroenterol
https://www.readbyqxmd.com/read/28842736/-minimally-invasive-and-robot-assisted-surgery-for-pancreatic-cystic-tumors
#10
REVIEW
T Welsch, M Distler, J Weitz
BACKGROUND: The indications for resection of pancreatic cystic lesions (PCL) are often complex and the operative risk has to be balanced against the risk of malignant transformation. The aim of the study was to provide a synopsis of the current treatment results of minimally invasive surgery for PCL. METHODS: A systematic literature search was performed using the Medline database (PubMed). Subsequently, the retrieved literature was selectively reviewed. RESULTS: No published prospective randomized controlled trials have yet addressed the comparison of open and minimally invasive surgery of PCL; however, retrospective case studies have demonstrated the feasibility, safety and a comparable morbidity after minimally invasive distal pancreatectomy (DP), pancreatoduodenectomy (PD), central (CP) or total pancreatectomy and enucleation...
August 25, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/28836521/a-prospective-study-of-endoscopic-ultrasonography-features-cyst-fluid-carcinoembryonic-antigen-and-fluid-cytology-for-the-differentiation-of-small-pancreatic-cystic-neoplasms
#11
Ying Wang, Ningli Chai, Jia Feng, Enqiang Linghu
BACKGROUND AND OBJECTIVES: With improvements in imaging technologies, pancreatic cystic lesions (PCLs) have been increasingly identified in recent years. However, the imaging modalities used to differentiate the categories of pancreatic cysts remain limited, which may cause confusion when planning treatment. Due to progress in endoscopic ultrasonography-guided fine-needle aspiration (EUS-FNA) technology, auxiliary diagnosis by the detection of cystic fluid has become a recent trend. METHODS: From March 2015 to April 2016, 120 patients with PCLs were enrolled in this study...
August 24, 2017: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/28835083/-ct-and-mri-findings-of-primary-hepatic-neuroendocrine-neoplasm
#12
J K Li, M Wang, J Yuan, Z G Song
Objective: To study imaging features of primary hepatic neuroendocrine neoplasm (PHNEN) with CT and MRI. Methods: CT/MRI findings of ten patients with pathologically confirmed PHNEN were retrospectively analyzed. The result was compared with pathologic features classified by the 2010 WHO classification of gastro-entero-pancreatic neuroendocrine tumor which was also compared with the conventional method. Results: Six cases of neuroendocrine tumor (NET), all of which were classified as grade 2 (G2), consisted of 5 cases of carcinoid and 1 case of atypical carcinoid...
August 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28831506/-cystic-pancreatic-tumors-diagnostics-and-new-biomarkers
#13
REVIEW
A W Berger, T Seufferlein, A Kleger
Mortality due to pancreatic ductal adenocarcinoma (PDAC) will increase in the near future. The only curative treatment for PDAC is radical resection; however, even small carcinomas exhibit micrometastases leading to early relapse. Accordingly, detection of premalignant precursor lesions is important. In essence, PDAC develops from three precursor lesions: pancreatic intraepithelial lesions (PanIN), intraductal papillary-mucinous neoplasia (IPMN) and mucinous-cystic neoplasia (MCN). Together with serous cystic neoplasia (SCN) and solid pseudopapillary neoplasia (SPN), these cystic lesions constitute the most common cystic neoplasms in the pancreas...
August 22, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/28815810/proteome-characterization-of-human-pancreatic-cyst-fluid-from-intraductal-papillary-mucinous-neoplasm-by-lc-ms-ms
#14
Joonho Park, Dohyun Han, Misol Do, Jongmin Woo, Joseph I Wang, Youngmin Han, Wooil Kwon, Sun-Whe Kim, Jin-Young Jang, Youngsoo Kim
RATIONALE: In recent years, the molecular components of pancreatic cyst fluid has been used for diagnosis and prognosis. Because the protein markers that are currently used in clinical tests are unreliable, proteomic studies to find new protein markers are being conducted. However, such researches have been limited due to the complexity of pancreatic cyst fluid and the immaturity of proteomic techniques. METHODS: To overcome these limitations and provide a pancreatic cyst proteome dataset, we examined cyst fluid proteome with tandem mass spectrometry...
August 15, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28797989/giant-pancreatic-solid-cystic-desmoid-tumor-with-two-ectopic-adrenal-tissues
#15
Neşe Ekinci, Fikret Dirilenoğlu, Arzu Avcı, Oğuzhan Özsay
A 19-year-old woman presented with painless swelling of the abdomen. During surgery, a giant mass measuring 37 cm×26 cm×12 cm within the distal pancreas invading the spleen was noted. The clinical diagnosis of a solid cystic pseudopapillary tumor of the pancreas was suspected. Distal pancreatectomy, splenectomy, and debulking surgery were performed. Histological examination showed that the tumor infiltrated the spleen and pancreatic parenchyma, and sections of the solid areas revealed a proliferation of spindle-shaped or stellate cells growing in fascicular and storiform patterns within a myxoid intercellular matrix...
August 9, 2017: Turkish Journal of Gastroenterology: the Official Journal of Turkish Society of Gastroenterology
https://www.readbyqxmd.com/read/28776935/shorter-telomere-length-increases-age-related-tumor-risks-in-von-hippel-lindau-disease-patients
#16
Jiang-Yi Wang, Shuang-He Peng, Xiang-Hui Ning, Teng Li, Sheng-Jie Liu, Jia-Yuan Liu, Bao-An Hong, Nie-Nie Qi, Xiang Peng, Bo-Wen Zhou, Jiu-Feng Zhang, Lin Cai, Kan Gong
Von Hippel-Lindau (VHL) disease is a rare autosomal dominant cancer syndrome caused by alterations of VHL gene. Patients are predisposed to develop pheochromocytomas and solid or cystic tumors of the central nervous system, kidney, pancreas, and retina. Remarkable phenotypic heterogeneity exits in organ involvement and tumor onset age between and within VHL families. However, no reliable markers have been found to predict the age-related tumor risks in VHL patients. A large Chinese cohort composed of 300 VHL patients and 92 healthy family controls was enrolled in our study...
September 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28749170/multidetector-ct-in-detection-of-troublesome-posterior-sectoral-hepatic-duct-communicating-with-cystic-duct
#17
Sumiyoshi Tatsuaki, Shima Yasuo, Okabayashi Takehiro, Hata Yasuhiro, Noda Yoshihiro, Kouno Michihiko, Sui Kenta, Negoro Yuji, Sueda Taijiro
OBJECTIVE: To investigate whether multiple detector CT (MDCT) could detect troublesome aberrant posterior sectoral hepatic duct (PHD) communicating with cystic duct (CD). METHODS: The most troublesome bile duct anomaly during cholecystectomy is an aberrant PHD communicating with CD. It has been suggested that an unenhanced small duct between Rouviere's sulcus and CD on MDCT could be coincident to an aberrant PHD communicating with CD. A total of 224 patients who underwent laparotomy with complete lymph node dissection in the hepatoduodenal ligament for hepatobiliary or pancreatic tumour were enrolled...
October 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28734747/retroperitoneal-fibrosis-associated-with-immunoglobulin-g4-related-disease-in-the-differential-diagnosis-in-retroperitoneal-tumors-case-report
#18
Gabriela Ruiz Mar, Óscar E Cárdenas Serrano, Jorge Roldan García, A Cañavera-Constantino, Víctor M Menéndez Trejo, Óscar Chapa Azuela
The patient was a 55-year-old woman with a 4-month history of pain in left flank that irradiated to the lumbar region. Computed tomography revealed a cystic tumor in the retroperitoneal region that compresses the ureter and left renal pelvis in contact with pancreatic body and tail. Surgery was performed and the definitive pathological report diagnosed nodular retroperitoneal fibrosis associated with IgG4; Ki67-positive in germinal centers (5%) and IgG4-positive (40 plasma cells in 3 fields of 40x) by immunohistochemistry...
July 19, 2017: Reumatología Clinica
https://www.readbyqxmd.com/read/28733741/tips-and-tricks-of-splenic-vessel-preservation-during-laparoscopic-distal-pancreatectomy
#19
Claire Goumard, Satoshi Ogiso, Masayuki Okuno, Jason B Fleming, Michael Kim, Ching-Wei D Tzeng, Jean-Nicolas Vauthey, Jeffrey E Lee, Claudius Conrad
BACKGROUND: While a laparoscopic approach can minimize postoperative morbidity in splenic vessel preserving (SVP) distal pancreatectomy (DP), this procedure can be technically challenging. A systematic approach to SVP minimizes the chances of vascular injury and maximizes the chances of successful splenic preservation. This video demonstrates a laparoscopic DP with SVP, highlighting technical tips and tricks that optimize the chances for SVP. PATIENT: The patient is a 14-year-old male with an incidentally discovered pancreatic tail mass...
July 21, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28698299/neat1-is-a-p53-inducible-lincrna-essential-for-transformation-suppression
#20
Stephano S Mello, Carolyn Sinow, Nitin Raj, Pawel K Mazur, Kathryn Bieging-Rolett, Daniela Kenzelmann Broz, Jamie F Conklin Imam, Hannes Vogel, Laura D Wood, Julien Sage, Tetsuro Hirose, Shinichi Nakagawa, John Rinn, Laura D Attardi
The p53 gene is mutated in over half of all cancers, reflecting its critical role as a tumor suppressor. Although p53 is a transcriptional activator that induces myriad target genes, those p53-inducible genes most critical for tumor suppression remain elusive. Here, we leveraged p53 ChIP-seq (chromatin immunoprecipitation [ChIP] combined with high-throughput sequencing) and RNA-seq (RNA sequencing) data sets to identify new p53 target genes, focusing on the noncoding genome. We identify Neat1, a noncoding RNA (ncRNA) constituent of paraspeckles, as a p53 target gene broadly induced by mouse and human p53 in different cell types and by diverse stress signals...
June 1, 2017: Genes & Development
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