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https://www.readbyqxmd.com/read/29230130/periampullary-carcinoma-unusual-sites-of-metastasis
#1
Anju Bansal, Varsha Dalal, Manveen Kaur, Fouzia Siraj
Background: Periampullary neoplasms include carcinomas of the duodenum, ampulla of Vater, distal common bile duct, and pancreas. The aggressive course of these neoplasms is attributable to the delay in diagnosis, as patients have no symptoms until advanced stages of the disease. More than half of patients have distant metastasis at the time of diagnosis. The most frequent sites of metastasis are the liver, lymph nodes, peritoneum, lung, bone, kidney, and, rarely the skin. Case Report: We report the case of a 45-year-old female patient with adenocarcinoma of the ampulla of Vater metastasizing to the right parietal skull with overlying cutaneous involvement 1 year after a Whipple procedure...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/29230117/outcomes-of-patients-with-late-relapse-metastatic-renal-cell-carcinoma-treated-with-targeted-therapies-a-single-institution-experience
#2
John Kucharczyk, Kamal Mandalapu, Suma Satti, Marc R Matrana
Background: Late relapse with presentation of metastatic disease >5 years after nephrectomy with curative intent is a known behavior of renal cell carcinoma (RCC), but data on outcomes, especially regarding targeted therapies, are limited. In this study, we analyze clinicopathologic features and response to targeted therapy in patients with late-relapse metastatic RCC (mRCC). Methods: We retrospectively reviewed clinical data on consecutive patients treated with targeted therapy for mRCC diagnosed >5 years after nephrectomy with curative intent...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/29221165/angiogenesis-in-adenosquamous-cancer-of-pancreas
#3
Nicola Silvestris, Katia Danza, Vito Longo, Oronzo Brunetti, Livia Fucci, Antonella Argentiero, Angela Calabrese, Ivana Cataldo, Roberto Tamma, Domenico Ribatti, Stefania Tommasi
Adenosquamous carcinoma of the pancreas (ASCP) is an uncommon variant of exocrine pancreatic malignancies, characterized by a histological admixture of adenomatous and squamous cell elements. This cancer is characterized by a poorly differentiated histology and a poorer clinical outcome compared to pancreatic ductal adenocarcinoma (PDAC). Unlike PDAC, that is characterized by a low microvascular density (MVD) and collapsed vasculature, no data are available about angiogenesis in ASPC. Immunohistochemical evaluation of MVD and trypatse-positive mast cells (MCs) were performed on a single case of ASCP compared to PDAC...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29218663/laparoscopic-extended-cholecystectomy-for-t3-gallbladder-cancer
#4
Sungho Kim, Yoo-Seok Yoon, Ho-Seong Han, Jai Young Cho, YoungRok Choi
BACKGROUND: Gallbladder cancer (GBC) has been contraindicated for laparoscopic surgery since this procedure was introduced [1, 2]. Recently, however, there have been several reports of laparoscopic extended cholecystectomy for GBC, but most cases involved early GBC confined to the GB [3, 4]. This video describes our technique of laparoscopic extended cholecystectomy for T3 GBC. METHODS: A 77-year-old female presented with a gallbladder mass, which was incidentally detected during evaluation of back pain...
December 7, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/29216532/spontaneous-regression-of-pancreatic-cancer-a-case-report-and-literature-review
#5
Ken Min Chin, Chung Yip Chan, Ser Yee Lee
INTRODUCTION: Spontaneous regression of cancer is defined as the partial or complete disappearance of malignant disease without treatment, or in the presence of therapy that is deemed inadequate to exert an influence on malignant disease, as composed by Tilden Everson and Warren Cole in the 1960s. It has been a topic of major interest in the field of medical and surgical oncology. It is poorly understood and scantily documented. Factors associated and postulated pathogeneses are at best, hypothetical...
December 2, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29211313/comparative-study-of-lung-and-extrapulmonary-poorly-differentiated-neuroendocrine-carcinomas-a-seer-database-analysis-of-162-983-cases
#6
Arvind Dasari, Kathan Mehta, Lauren A Byers, Halfdan Sorbye, James C Yao
BACKGROUND: Extrapulmonary neuroendocrine carcinomas (NECs) are poorly studied and are managed similar to lung NECs, which may not account for differences between the 2 groups of tumors as well as the heterogeneity within extrapulmonary NEC. METHODS: Data from the Surveillance, Epidemiology, and End Results program between 1973 and 2012 were used to estimate the relative percentages of lung NECs and subgroups of extrapulmonary NECs, epidemiological patterns at these sites, and the median and 5-year overall survival rates...
December 6, 2017: Cancer
https://www.readbyqxmd.com/read/29208039/effects-of-metamizole-maa-and-paracetamol-on-proliferation-apoptosis-and-necrosis-in-the-pancreatic-cancer-cell-lines-patu-8988%C3%A2-t-and-panc-1
#7
Manuela Malsy, Bernhard Graf, Anika Bundscherer
BACKGROUND: Adenocarcinoma of the pancreas is one of the most aggressive cancer diseases affecting the human body. Recent research has shown the importance of the perioperative phase in disease progression. Particularly during this vulnerable phase, substances such as metamizole and paracetamol are given as general anesthetics and postoperative analgesics. Therefore, the effects of metamizole and paracetamol on tumor progression should be investigated in more detail because the extent to which these substances influence the carcinogenesis of pancreatic carcinoma is still unclear...
December 6, 2017: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/29202352/intrahepatic-portal-vein-thrombosis-due-to-postoperative-biliary-obstruction-successfully-treated-by-a-partial-thrombectomy-combined-with-thrombolytic-drug-therapy
#8
Naoya Imamura, Atsushi Nanashima, Yuki Tsuchimochi, Takeomi Hamada, Koichi Yano, Masahide Hiyoshi, Yoshiro Fujii, Kunihide Nakamura
INTRODUCTION: This case report aims to inform pancreatic surgeons about our perioperative management of intrahepatic portal vein thrombosis caused by an obstruction of hepaticojejunostomy (HJ) after pancreaticoduodenectomy (PD). CASE PRESENTATION: A 65-year-old woman was diagnosed with pancreas head carcinoma involving the superior mesenteric vein (SMV). Pancreaticoduodenectomy combined with SMV resection was followed by HJ. Twisting or narrowing was not evident during anastomosis...
November 27, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29201783/persistent-elevation-of-ca-19-9-levels-in-the-long-term-follow-up-before-laryngeal-cancer
#9
Hasan Özkan, Fatih Karakaya, Zihni Karaeren, Sibel Perçinel
Introduction: CA 19-9 is used as a tumor marker in colon, pancreas, biliary, and gastric cancers. Laryngeal cancer is the most common malignant epithelial tumor among head and neck cancers and has no specific tumor marker. Case report: A 66-year-old male patient had severe reflux symptoms during 5 years and had an isolated CA 19-9 elevation. Follow-up analysis revealed that he had larynx cancer and after laryngectomy, CA 19-9 levels decreased to normal range. Discussion: Currently, CA 19-9 is not a marker for malignancy...
January 2017: Euroasian Journal of Hepato-Gastroenterology
https://www.readbyqxmd.com/read/29197396/new-laparoscopic-procedure-for-left-sided-pancreatic-cancer-artery-first-approach-laparoscopic-ramps-using-3d-technique
#10
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/29192371/management-of-horizontal-duodenal-perforation-a-report-of-three-cases-and-review-of-literature
#11
Pramod Nepal, Kosei Maemura, Yuko Mataki, Hiroshi Kurahara, Yota Kawasaki, Kiyokazu Hiwatashi, Satoshi Iino, Masahiko Sakoda, Takaaki Arigami, Sumiya Ishigami, Hiroyuki Shinchi, Shoji Natsugoe
BACKGROUND: Perforation of the horizontal duodenum is very rare due to the presence in retroperitoneal space. It depicts an unusual clinical picture and is difficult to diagnose, leading to increased morbidity and mortality. The treatment strategies are usually varied and based on small series of cases, literature reviews, and expert opinions. CASE PRESENTATION: Here, we presented three cases of horizontal duodenal perforation in three different clinical processes...
December 1, 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/29191273/rare-tumors-and-lesions-of-the-pancreas
#12
REVIEW
John A Stauffer, Horacio J Asbun
There are a few entities that account for most solid and cystic masses of the pancreas. The pancreas harbors a wide array of diseases, including adenocarcinoma, and its variants, such as anaplastic and adenosquamous carcinoma. Other neoplasms include acinar cell carcinoma, solid pseudopapillary tumor, and sarcomas. Benign lesions include hamartomas, hemangiomas, lymphangioma, and plasmacytoma. Isolated metastases include renal cell carcinoma, melanoma, and other carcinomas. Benign inflammatory conditions, such as autoimmune pancreatitis and groove pancreatitis can also mimic solid neoplasms of the pancreas...
February 2018: Surgical Clinics of North America
https://www.readbyqxmd.com/read/29189063/classification-morphology-molecular-pathogenesis-and-outcome-of-premalignant-lesions-of-the-pancreas
#13
REVIEW
Meredith E Pittman, Rema Rao, Ralph H Hruban
CONTEXT: - Invasive pancreatic ductal adenocarcinoma has a greater than 90% mortality rate at 5 years. Understanding noninvasive, curable precursor lesions gives us the best hope for reducing mortality from pancreatic ductal adenocarcinoma. The 3 pancreatic precursor lesions that have been well studied include intraductal papillary mucinous neoplasm, mucinous cystic neoplasm, and pancreatic intraepithelial neoplasia. OBJECTIVE: - To give an update on the latest clinical, molecular, and pathologic advances in intraductal papillary mucinous neoplasm, mucinous cystic neoplasm, and pancreatic intraepithelial neoplasia for the general surgical pathologist...
December 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/29181837/expression-of-liver-x-receptors-in-normal-and-refractory-carcinoma-tissues-of-the-human-lung-and-pancreas
#14
Korehito Kashiwagi, Mai Yanagida, Daiki Matsui, Mizuko Tanaka, Kotaro Sugimoto, Honglei Chen, Naoki Ichikawa-Tomikawa, Shigeru Marubashi, Hiroyuki Suzuki, Hideki Chiba
Liver X receptors (LXRs) participate not only in maintaining cholesterol homeostasis but also in controlling cellular growth in many types of normal and tumor cells. We previously reported that LXRα was aberrantly expressed in human oral squamous cell carcinoma (HOSCC) tissues and cell lines, and that LXR stimulation led to significant reduction of proliferation of HOSCC cells via accelerating cholesterol efflux. Since LXRs and downstream proteins involved in cholesterol metabolism could be also applied as therapeutic targets in small cell lung carcinoma (SCLC) and pancreatic ductal adenocarcinoma (PDAC), we herein analyzed the distribution of LXR proteins in these refractory cancers as well as in normal human lung and pancreatic tissues...
November 28, 2017: Histology and Histopathology
https://www.readbyqxmd.com/read/29177841/xanthogranulomatous-pyelonephritis-a-case-with-rare-adhesion-to-pancreas
#15
Tuba Devrim, Pınar Atasoy, Devrim Tuğlu
Xanthogranulomatous pyelonephritis (XGP) is a rare benign condition with unknown aetiology and chronic infection of kidney. Commonly, most cases are related with urinary tract obstruction, nephrolithiasis, infection, diabetes, and/or immune compromise. XGP is associated with destruction of the renal parenchyma and granulomatous inflammation with foamy lipid-laden macrophages resulting from obstructive uropathy. It closely mimics a malignancy, exhibiting local tissue invasion and destruction. Adjacent organs especially duodenum as well as very rarely pancreas or spleen may be involved...
November 25, 2017: CEN Case Reports
https://www.readbyqxmd.com/read/29177161/early-gastroenteropancreatic-neuroendocrine-tumors-endoscopic-therapy-and-surveillance
#16
REVIEW
Hans Scherübl, Guillaume Cadiot
Neuroendocrine neoplasias (NEN) of the stomach, duodenum, pancreas, appendix, or rectum that are ≤1 cm in size as well as well-differentiated with World Health Organization grade 1 (G1) can be considered 'early' neuroendocrine tumors; they have a very good prognosis. Regarding prognosis, neuroendocrine tumors (NET) G1 must be distinguished from well-differentiated NET G2 and poorly differentiated neuroendocrine carcinomas (NEC) G3. NET are increasing, with a rise in the age-adjusted incidence in the USA by about 700% in the last 40 years...
October 2017: Visceral Medicine
https://www.readbyqxmd.com/read/29177160/neuroendocrine-neoplasms-dichotomy-origin-and-classifications
#17
REVIEW
Günter Klöppel
Neuroendocrine neoplasms (NENs) are heterogeneous tumors with a common phenotype. There are two fundamentally different groups of NENs: well-differentiated, low-proliferating NENs, called neuroendocrine tumors (NETs) or carcinoids, and poorly differentiated, highly proliferating NENs, called small- or large-cell neuroendocrine carcinomas (NECs). This NEN dichotomy is probably due to an origin from different neuroendocrine progenitor cells. The current World Health Organization (WHO) classification of gastrointestinal NENs uses the Ki67 proliferation index to grade NETs as G1 or G2, and NECs as G3...
October 2017: Visceral Medicine
https://www.readbyqxmd.com/read/29170051/multicenter-study-of-early-pancreatic-cancer-in-japan
#18
Atsushi Kanno, Atsushi Masamune, Keiji Hanada, Hiroyuki Maguchi, Yasuhiro Shimizu, Toshiharu Ueki, Osamu Hasebe, Takao Ohtsuka, Masafumi Nakamura, Mamoru Takenaka, Masayuki Kitano, Masataka Kikuyama, Toshifumi Gabata, Koji Yoshida, Tamito Sasaki, Masahiro Serikawa, Toru Furukawa, Akio Yanagisawa, Tooru Shimosegawa
BACKGROUND/OBJECTIVES: The diagnosis of early-stage pancreatic ductal adenocarcinoma (PDAC) is still challenging. We conducted a multicenter study to clarify the clinical features of early-stage PDAC in Japan. METHODS: We collected patients with stage 0 and stage I PDAC according to the sixth edition of the Japanese Classification of Pancreatic Carcinoma. We retrospectively analyzed the clinical profiles including opportunities for medical examination, imaging modalities and findings, methods of cytological diagnosis, and prognosis according to the stages at diagnosis...
November 20, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/29169620/pancreatic-colloid-carcinoma-in-an-elderly-cat
#19
K Hagiwara, M Michishita, H Yoshimura, K Ochiai, D Azakami, T Ishiwata, K Takahashi
A 21-year-old neutered female domestic shorthaired cat was presented with a history of inappetence, vomiting and haematuria. The cat was humanely destroyed at the owner's request and a necropsy examination was performed. A 0.8 × 0.5 × 0.5 cm mass was located in the left lobe of the pancreas. The mass was gelatinous in nature and the external and cut surfaces were pale yellow in colour. Microscopically, the mass was non-capsulated and comprised an accumulation of extracellular stromal mucin containing suspended neoplastic columnar epithelial cells forming tubular structures...
November 2017: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/29169281/pitfalls-of-frozen-section-diagnosis-for-paraganglioma-a-clinicopathologic-analysis-and-review-of-the-literature
#20
Bomi Kim, Youngeun Yoo, Junghye Lee, Sanghui Park, Min-Sun Cho, Sun Hee Sung, Ghee Young Kwon
Few paraganglioma (PG) cases include frozen section diagnoses, and therefore, the accuracy of frozen section diagnosis for PG remains unknown. To better understand the histologic characteristics and pitfalls of frozen section findings for PG, 15 PG cases with frozen section diagnoses were selected from 12 articles through PubMed (1984-2015). In addition, we included 3 cases of PG for which intraoperative consultations were requested during a 5-year period (2012-2016) in 2 hospitals. Seven PGs were from the thyroid; 2 from the pancreas; 4 from the mediastinum, retroperitoneum, or mesentery; 1 from the middle ear; and 4 from the urinary bladder (UB)...
November 1, 2017: International Journal of Surgical Pathology
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