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https://www.readbyqxmd.com/read/28072692/role-of-biochemistry-and-cytological-analysis-of-cyst-fluid-for-the-differential-diagnosis-of-pancreatic-cysts-a-retrospective-cohort-study
#1
Ozlem Mutluay Soyer, Bulent Baran, Asli Ciftcibasi Ormeci, Davut Sahin, Suut Gokturk, Sami Evirgen, Rafet Basar, Pinar Firat, Filiz Akyuz, Kadir Demir, Fatih Besisik, Sabahattin Kaymakoglu, Cetin Karaca
BACKGROUND: Management of pancreatic cysts is based on neoplastic-nonneoplastic discrimination. Endoscopic ultrasound (EUS) enables to differentiate neoplastic-nonneoplastic lesions and also allows fine-needle aspiration (FNA). In this study, we aim to assess feasibility and clinical relevance of cytological and biochemical analysis in differential diagnosis of cystic pancreatic lesions in patients who had undergone endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) due to pancreatic cysts...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28062483/the-sialic-acid-to-urea-ratio-as-a-measure-of-airway-surface-hydration
#2
Charles R Esther, David B Hill, Brian Button, Shuai Shi, Corey M Jania, Elizabeth A Duncan, Claire M Doerschuk, Gang Chen, Sarath Ranganathan, Stephen Michael Stick, Richard C Boucher
INTRODUCTION: Although airway mucus dehydration is key to pathophysiology of cystic fibrosis (CF) and other airways diseases, measuring mucus hydration is challenging. We explored a robust method to estimate mucus hydration using sialic acid as a marker for mucin content. METHODS: Terminal sialic acid residues from mucins were cleaved by acid hydrolysis from airway samples, and concentrations of sialic acid, urea, and other biomarkers analyzed using mass spectrometry...
January 6, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28060882/secretion-of-proteases-by-an-opportunistic-fungal-pathogen-scedosporium-aurantiacum
#3
Zhiping Han, Liisa Kautto, Helena Nevalainen
Scedosporium aurantiacum is an opportunistic filamentous fungus increasingly isolated from the sputum of cystic fibrosis patients, and is especially prevalent in Australia. At the moment, very little is known about the infection mechanism of this fungus. Secreted proteases have been shown to contribute to fungal virulence in several studies with other fungi. Here we have compared the profiles of proteases secreted by a clinical isolate Scedosporium aurantiacum (WM 06.482) and an environmental strain (WM 10...
2017: PloS One
https://www.readbyqxmd.com/read/28055239/the-evolving-role-of-pathology-in-new-developments-classification-terminology-and-diagnosis-of-pancreatobiliary-neoplasms
#4
Michelle D Reid, Melinda M Lewis, Field F Willingham, Volkan Adsay
Pancreatobiliary tract lesions are increasingly being discovered because of more sensitive imaging modalities. Magnetic resonance imaging has identified incidental pancreatic cysts in 13.5% of patients of progressively increasing age. Pancreatobiliary tissue is more accessible through endoscopic ultrasound and magnetic resonance imaging-guided biopsy procedures, and is now an integral part of pathologists' routine practice. Accordingly, several new tumor categories have been recently recognized, including intraductal tubulopapillary neoplasm, a new addition to tumoral intraepithelial neoplasms...
January 5, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28054178/hemosuccus-pancreaticus-caused-by-a-mucinous-cystic-neoplasm-of-the-pancreas
#5
Yuri Matsumoto, Hiroshi Miyamoto, Akira Fukuya, Fumika Nakamura, Takahiro Goji, Shinji Kitamura, Tetsuo Kimura, Koichi Okamoto, Masahiro Sogabe, Naoki Muguruma, Mitsuo Shimada, Yoshimi Bando, Tetsuji Takayama
Hemosuccus pancreaticus is a gastrointestinal hemorrhage through the main pancreatic duct. Here, we report a rare case of hemosuccus pancreaticus due to a mucinous cystic neoplasm of the pancreas. A 62-year-old woman who had been followed for a branch duct intraductal papillary mucinous neoplasm visited our emergency room due to severe abdominal pain and bloody discharge. Computed tomography revealed that the pancreatic cyst increased the tension of the wall and a high-density area indicative of bleeding into the cyst was observed...
January 4, 2017: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/28050435/mucinous-cystadenocarcinoma-in-a-horse-shoe-kidney-masquerading-as-giant-hydronephrosis-a-case-report-diagnostic-challenges-lessons-learnt-and-review-of-literature
#6
Leena Dennis Joseph, Sriram Krishnamoorthy, Rajendiran Swaminathan, Gokul Kripesh, Hariharasudhan Sekar
Primary epithelial tumour of the renal pelvis is a rare entity. So far, very few cases are reported in literature. Of these, mucin secreting adenocarcinomas are distinctly rare. However, mucinous cystadenocarcinoma, that too arising in a horse shoe kidney is extremely rare to be reported. Mucinous cystadenomas and carcinomas arising from the renal pelvis are regarded to be secondary to a metaplastic change in the urothelium. Here, we present a case of a 51-year-old male, who complained of abdominal pain, palpable abdominal mass, haematuria along with passage of mucoid material in the urine, with a very poorly functioning kidney...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28044300/a-mimicker-of-gallbladder-carcinoma-cystic-gastric-heterotopia-with-intestinal-metaplasia
#7
Gonca Özgün, Şaduman Balaban Adim, Nesrin Uğraş, Sadık Kiliçturgay
Heterotopic gastric mucosa in the gallbladder is an unusual entity and is usually clinically silent. We report a 75-year-old female patient who presented with intermittent upper abdomial pain radiating to the back. Abdominal imaging studies showed a sessile polypoid lesion and a gallstone in the gallbladder. Gallbladder carcinoma was suspected and cholecystectomy performed. Intraoperative frozen section examination suggested mucinous tumor, suspicious for malignancy. However, the permanent sections revealed aberrant gastric tissue consisted of gastric pyloric and fundic glands of heterotopic gastric mucosa with intestinal metaplasia in the gallbladder...
2017: Türk Patoloji Dergisi
https://www.readbyqxmd.com/read/28038793/histologic-characteristics-of-thymic-adenocarcinomas-clinicopathologic-study-of-a-nine-case-series-and-a-review-of-the-literature
#8
Ah-Young Kwon, Joungho Han, Jinah Chu, Yong Soo Choi, Byeong-Ho Jeong, Myung-Ju Ahn, Yong Chan Ahn
Primary thymic adenocarcinoma is an extraordinarily rare malignancy; only 49 cases have been reported in the medical literature to date. Because of its rarity, clinical and pathologic characteristics of thymic adenocarcinoma are unclear. We present nine cases of primary thymic adenocarcinoma and discuss clinicopathologic findings in the context of the existing literature. Two-hundred twenty-six thymic carcinoma cases were diagnosed at Samsung Medical Center in Korea, from January, 2001 to July, 2016. Nine of these 226 cases were primary thymic adenocarcinomas...
November 15, 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28035597/identification-of-essential-genes-of-pseudomonas-aeruginosa-for-its-growth-in-airway-mucus
#9
Mohammed Abd Alrahman, Sang Sun Yoon
Pseudomonas aeruginosa has been identified as an important causative agent of airway infection, mainly in cystic fibrosis. This disease is characterized by defective mucociliary clearance induced in part by mucus hyper-production. Mucin is a major component of airway mucus and is heavily O-glycosylated, with a protein backbone. Airway infection is known to be established with bacterial adhesion to mucin. However, the genes involved in mucin degradation or utilization remain elusive. In this study, we sought to provide a genetic basis of P...
January 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28032311/prognostic-factors-for-renal-cell-carcinoma-subtypes-diagnosed-according-to-the-2016-who-renal-tumor-classification-a-study-involving-928-patients
#10
Levente Kuthi, Alex Jenei, Adrienn Hajdu, István Németh, Zoltán Varga, Zoltán Bajory, László Pajor, Béla Iványi
The morphotype and grade of renal cell carcinoma (RCC) in 928 nephrectomies were reclassified according to the 2016 WHO classification in order to analyze the distribution and outcomes of RCC subtypes in Hungary, to assess whether microscopic tumor necrosis is an independent prognostic factor in clear cell RCC, and to study whether a two-tiered grading (low/high) for clear cell and papillary RCC provides similar prognostic information to that of the four-tiered ISUP grading system. 83.4% of the cohort were clear cell, 6...
December 28, 2016: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28030856/criteria-for-determining-malignancy-in-pancreatic-intraductal-papillary-mucinous-neoplasm-based-on-computed-tomography
#11
Peter Mönnings, Orlin Belyaev, Waldemar Uhl, Arnd Giese, Andrea Tannapfel, Odo Köster, Juris J Meier
INTRODUCTION: Determining the dignity of intraductal papillary mucinous neoplasms (IPMNs) by imaging procedures is challenging. Various CT-based criteria were evaluated. PATIENTS AND METHODS: Preoperative CT scans from 47 patients with IPMN were analyzed. Predefined criteria of malignancy were compared between patients with benign (bIPMN; n = 28) and malignant (mIPMN; n = 19) tumors, and a summation score was determined. RESULTS: Preoperative carbohydrate-antigen 19-9 levels were higher in patients with mIPMN (p = 0...
December 29, 2016: Digestion
https://www.readbyqxmd.com/read/28029908/pathology-of-ischemic-optic-neuropathy
#12
Hershel R Patel, Curtis E Margo
Ischemic optic neuropathy (ION) describes a state of hypoxic injury of the optic nerve. Clinically, ION is divided into anterior and posterior forms defined by the presence or absence of optic disc swelling, respectively. It is further classified as arteritic when secondary to vasculitis, and nonarteritic when not. The site of vascular occlusion for anterior ION from giant cell arteritis is the short posterior ciliary arteries, but mechanical vascular obstruction does not play a role in most nonarteritic cases...
January 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28002329/incidental-pancreatic-cystic-neoplasms-in-an-asymptomatic-healthy-population-of-21-745-individuals-large-scale-single-center-cohort-study
#13
Ye Rim Chang, Joo Kyung Park, Jin-Young Jang, Wooil Kwon, Jeong Hee Yoon, Sun-Whe Kim
Although incidental pancreatic cystic neoplasms are being diagnosed with increasing frequency, little is known about the accurate prevalence of pancreatic cysts in the general population. The aims of this study were to evaluate the crude prevalence rate of pancreatic cystic neoplasms in asymptomatic healthy adults, and calculate the age- and sex-adjusted nationwide prevalence rate.A total of 21,745 asymptomatic individuals who underwent abdominal computed tomography (CT) as a health screening examination were enrolled between 2003 and 2013 at the Seoul National University Hospital Healthcare System Gangnam Center...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28000653/laparoscopic-spleen-preserving-distal-pancreatectomy-for-a-primary-hydatid-cyst-mimicking-a-mucinous-cystic-neoplasia
#14
Tugan Tezcaner, Yahya Ekici, Onur Huseyin Aydın, Gonca Barit, Gökhan Moray
Pancreatic hydatid cysts are fairly rare. The disease can be encountered concurrently with systemic involvement or as an isolated pancreatic involvement. We report the first case of spleen-preserving laparoscopic distal pancreatectomy for a pancreatic hydatid cyst. There was no complication or recurrence. A 55-year-old woman was admitted to our centre with epigastric and back pain. Upper abdominal magnetic resonance imaging revealed a solitary cystic lesion with septations at the pancreatic tail level measuring 24 mm × 18 mm, which was initially thought to be a pancreatic mucinous cystic neoplasia...
December 21, 2016: Journal of Minimal Access Surgery
https://www.readbyqxmd.com/read/28000629/effectiveness-of-contrast-enhanced-endoscopic-ultrasound-for-detecting-mural-nodules-in-intraductal-papillary-mucinous-neoplasm-of-the-pancreas-and-for-making-therapeutic-decisions
#15
Mitsuru Fujita, Takao Itoi, Nobuhito Ikeuchi, Atsushi Sofuni, Takayoshi Tsuchiya, Kentaro Ishii, Kentaro Kamada, Junko Umeda, Reina Tanaka, Ryosuke Tonozuka, Mitsuyoshi Honjo, Shuntaro Mukai, Fuminori Moriyasu
BACKGROUND AND OBJECTIVES: There have been few studies to date evaluating the effectiveness of contrast-enhanced endoscopic ultrasound (CE-EUS) for detecting mural nodules in patients with branch duct-type intraductal papillary mucinous neoplasm (BD-IPMN) of the pancreas. We aim to evaluate the effectiveness of CE-EUS for detecting mural nodules in BD-IPMN. PATIENTS AND METHODS: Of the 427 BD-IPMN patients, 21 patients (4.9%) in whom the presence of mural nodules was suggested by CE computed tomography (CT) or magnetic resonance imaging (MRI), or in whom the presence of nodule-like lesions as shown by fundamental EUS, were examined by CE-EUS...
November 2016: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/27998309/a-subserosal-pedunculated-multilocular-uterine-leiomyoma-with-ovarian-tumor-like-morphology-and-histological-architecture-of-adenomatoid-tumors-a-case-report-and-review-of-the-literature
#16
Kenji Yorita, Yu Tanaka, Koki Hirano, Yuka Kai, Kaoru Arii, Kimiko Nakatani, Satoshi Ito, Toshiya Imai, Masaharu Fukunaga, Naoto Kuroda
BACKGROUND: Uterine leiomyomas are common uterine tumors, and typical cases of leiomyoma are easily diagnosed by imaging study. However, uterine leiomyomas are often altered by degenerative changes, which can cause difficulty and confusion in their clinical diagnosis. We describe the 17th reported case of a uterine leiomyoma clinically diagnosed as an ovarian tumor; however, the present case shows the most detailed radiological evaluation, including contrast-enhanced magnetic resonance imaging...
December 20, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27995180/endoscopic-ultrasound-guided-fine-needle-aspiration-plus-kras-and-gnas-mutation-in-malignant-intraductal-papillary-mucinous-neoplasm-of-the-pancreas
#17
Barbara Bournet, Alix Vignolle-Vidoni, David Grand, Céline Roques, Florence Breibach, Jérome Cros, Fabrice Muscari, Nicolas Carrère, Janick Selves, Pierre Cordelier, Louis Buscail
Background:KRAS and GNAS mutations are common in intraductal papillary mucinous neoplasia of the pancreas (IPMN). The aims of this study were to assess the role of pre-therapeutic cytopathology combined with KRAS and GNAS mutation assays within cystic fluid sampled by endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) to predict malignancy of IPMN. Patients and methods: We prospectively included 37 IPMN patients with clinical and/or imaging predictors of malignancy (men: 24; mean age: 69.5 years)...
December 2016: Endoscopy International Open
https://www.readbyqxmd.com/read/27994008/mesothelial-inclusion-cyst-a-rare-occurrence
#18
David Sc Soon, Hamish Shilton, Ali Andrabi
Mesothelial inclusion cyst is a rare benign tumour that has only 130 cases reported in the literature. Accurate diagnosis and optimal management of this condition remains uncertain. We report a 51-year-old African gentleman, whom presents with abdominal pain and constipation. A computed tomography scan was performed and revealed a large cystic lesion in the right paracolic gutter. The differential diagnosis included appendiceal mucinous neoplasm, cystic tuberculosis and duplication cyst. A laparotomy was performed due to his symptoms and size of the cyst...
December 18, 2016: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/27992432/a-gastric-glycoform-of-muc5ac-is-a-biomarker-of-mucinous-cysts-of-the-pancreas
#19
Jessica Sinha, Zheng Cao, Jianliang Dai, Huiyuan Tang, Katie Partyka, Galen Hostetter, Diane M Simeone, Ziding Feng, Peter J Allen, Randall E Brand, Brian B Haab
Molecular indicators to specify the risk posed by a pancreatic cyst would benefit patients. Previously we showed that most cancer-precursor cysts, termed mucinous cysts, produce abnormal glycoforms of the proteins MUC5AC and endorepellin. Here we sought to validate the glycoforms as a biomarker of mucinous cysts and to specify the oligosaccharide linkages that characterize MUC5AC. We hypothesized that mucinous cysts secrete MUC5AC displaying terminal N-acetylglucosamine (GlcNAc) in either alpha or beta linkage...
2016: PloS One
https://www.readbyqxmd.com/read/27981313/a-case-of-serous-cystadenoma-communicating-with-a-stenotic-santorini-s-duct-and-a-dilated-main-pancreatic-duct
#20
Hiroyuki Matsubayashi, Yurika Oka, Takaaki Ito, Katsuhiko Uesaka, Keiko Sasaki, Hiroyuki Ono
A 59-year-old woman was referred for investigation of a pancreatic cystic lesion. Computed tomography revealed a well-demarcated, multilocular cyst, approximately 4 cm in size, at the pancreas head. Endoscopic ultrasonography demonstrated honeycomb-like components at the cyst margin. The cyst was associated with a widely-dilated upstream main pancreatic duct (MPD). Endoscopic retrograde pancreatography demonstrated a communication between the stenotic Santorini's duct and the cyst. Aspiration cytology from the cyst demonstrated clusters of mucinous epithelial neoplasm cells...
December 2016: Journal of Gastrointestinal and Liver Diseases: JGLD
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