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https://www.readbyqxmd.com/read/28803235/18f-fdg-uptake-in-well-differentiated-neuroendocrine-tumors-correlates-with-both-ki-67-and-vhl-pathway-inactivation
#1
Margot Bucau, Astrid Laurent-Bellue, Nicolas Poté, Olivia Hentic, Jérôme Cros, Nidaa Mikail, Vinciane Rebours, Philippe Ruszniewski, Rachida Lebtahi, Anne Couvelard
<br>Introduction: 18FDG PET-scanner positivity correlates with poor prognosis in neuroendocrine neoplasms (NEN). Glucose transporter 1 (GLUT1) and carbonic anhydrase 9 (CA9) are markers of agressivity in tumors. Together with pVHL, they are involved in tumor cell metabolism via the hypoxia-inducible factor (HIF) signaling pathway. The aim of this study was to compare, in a series of well-differentiated neuroendocrine tumors (NET), the 18-FDG uptake and expression of proliferation marker Ki-67, GLUT-1, CA9 and pVHL...
August 11, 2017: Neuroendocrinology
https://www.readbyqxmd.com/read/28602900/multi-level-mycotic-aneurysms-due-to-salmonella-infection-case-report-and-review-of-the-literature
#2
E H Pasveer, R G Statius van Eps, J J Wever, H T C Veger
Infected or mycotic aneurysms (MA) of the aorta and adjacent arteries are rare and difficult to treat. We report a unique case of a Salmonella serotype enteritidis-induced rapidly expanding aortic and iliac pseudoaneurysm during pre-operative work-up. Based on the presented case, we postulate that the agressive nature of Salmonella Enteritidis MA should not be underestimated. If postponed intervention is chosen and the patient is managed conservatively with antibiotic therapy to create a window of definitive diagnosis one should consider close follow-up imaging to observe progression of the pseudo aneurysm...
June 7, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28387647/management-of-childhood-thyroid-nodules-surgical-and-endocrinological-findings-in-a-large-group-of-cases
#3
Emre Divarcı, Ülgen Çeltik, Zafer Dökümcü, Orkan Ergün, Geylani Özok, Samim Özen, Damla Gökşen Şimşek, Şükran Darcan, Nazan Çetingül, Aylin Oral, Yeşim Ertan, Bengü Demirağ, Ahmet Çelik
OBJECTIVE: The management of childhood thyroid nodules is still a big challenge for clinicians. In this study, we aimed to present our surgical and endocrinological experience in more than one hundred pediatric cases. METHODS: A retrospective analysis of patients admitted with a thyroid nodule between 2006 and 2014 was performed. Detailed ultrasonography and fine-needle aspiration biopsy (FNAB) were the cornerstones of the diagnostic approach. RESULTS: One hundred-three children (72 female, 31 male) with a mean age of 13...
September 1, 2017: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/28365955/clinicopathological-features-of-patients-with-breast-cancer-aged-70-years-or-over
#4
Aydin Aytekin, Fatih Karatas, Suleyman Sahin, Gokmen U Erdem, Kadri Altundag
PURPOSE: The risk of breast cancer (BC) increases in parallel with increasing age. Despite the increased disease burden in elderly patients, there is still a great uncertainty regarding "how to manage" BC in aging-population. The purpose of this study was to investigate the clinicopathological features and treatment approaches of patients with BC aged 70 years or over. METHODS: The medical records of 4413 patients with BC followed between 1994-2015 were retrospectively analyzed...
January 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28268532/slice-correspondence-estimation-using-surf-descriptors-and-context-based-search-for-prostate-whole-mount-histology-mri-registration
#5
Lina Guzman, Frederic Commandeur, Oscar Acosta, Antoine Simon, Alain Fautrel, Nathalie Rioux-Leclercq, Eduardo Romero, Romain Mathieu, Renaud de Crevoisier
Registration of histopathology volumes to Magnetic Resonance Images(MRI) is a crucial step for finding correlations in Prostate Cancer (PCa) and assessing tumor agressivity. This paper proposes a two-stage framework aimed at registering both modalities. Firstly, Speeded-Up Robust Features (SURF) algorithm and a context-based search is used to automatically determine slice correspondences between MRI and histology volumes. This step initializes a multimodal nonrigid registration strategy, which allows to propagate histology slices to MRI...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28237042/expression-of-ngf-gdnf-and-mmp-9-in-prostate-carcinoma
#6
Sirin Baspinar, Sema Bircan, Metin Ciris, Nermin Karahan, Kemal Kursat Bozkurt
The aim of the present study was to investigate the immunohistochemical expression of NGF, GDNF and MMP-9 in benign prostatic hyperplasia (BPH), high grade prostatic intraepithelial neoplasia (HGPIN) and prostate cancer (PC), and to analyse their association with the clinicopathological parameters in PC cases. Immunohistochemistry was performed on the tissue microarray (TMA) sections of 30 BPH, 40 HGPIN and 121 primary PC tissues. There was a significant difference regarding the expression of NGF and GDNF between PC and HGPIN (p<0...
February 10, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28226707/slice-correspondence-estimation-using-surf-descriptors-and-context-based-search-for-prostate-whole-mount-histology-mri-registration
#7
Lina Guzman, Frederic Commandeur, Oscar Acosta, Antoine Simon, Alain Fautrel, Nathalie Rioux-Leclercq, Eduardo Romero, Romain Mathieu, Renaud de Crevoisier, Lina Guzman, Frederic Commandeur, Oscar Acosta, Antoine Simon, Alain Fautrel, Nathalie Rioux-Leclercq, Eduardo Romero, Romain Mathieu, Renaud de Crevoisier, Frederic Commandeur, Romain Mathieu, Antoine Simon, Alain Fautrel, Eduardo Romero, Renaud De Crevoisier, Oscar Acosta, Nathalie Rioux-Leclercq, Lina Guzman
Registration of histopathology volumes to Magnetic Resonance Images(MRI) is a crucial step for finding correlations in Prostate Cancer (PCa) and assessing tumor agressivity. This paper proposes a two-stage framework aimed at registering both modalities. Firstly, Speeded-Up Robust Features (SURF) algorithm and a context-based search is used to automatically determine slice correspondences between MRI and histology volumes. This step initializes a multimodal nonrigid registration strategy, which allows to propagate histology slices to MRI...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28139271/sleep-apnea-and-tumor-agressivity
#8
Miguel Ángel Martínez-García, Francisco Campos-Rodríguez, Isaac Almendros
No abstract text is available yet for this article.
January 27, 2017: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/28124526/predictive-value-of-2-propsa-p2psa-and-its-derivatives-for-the-prostate-cancer-detection-in-the-2-0-to-10-0ng-ml-psa-range
#9
I Vukovic, D Djordjevic, N Bojanic, U Babic, I Soldatovic
INTRODUCTION: To assess predictive value of new tumor markers, precursor of prostate specific antigen (p2PSA) and its derivates-%p2PSA and prostate health index (PHI) in detection of patients with indolent and aggressive prostate cancer (PC) in a subcohort of man whose total PSA ranged from 2 to 10ng/mL. MATERIALS AND METHODS: This cross-sectional study included 129 consecutive male patients aged over 50 years, with no previous history of PC and with normal digital rectal examination findings, but with serum PSA in interval between 2 and 10ng/mL...
January 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28109462/can-ratio-of-the-biggest-tumor-diameter-to-total-tumor-diameter-be-a-new-parameter-in-the-differential-diagnosis-of-agressive-and-favorable-multifocal-papillary-thyroid-microcarcinoma
#10
Abbas Ali Tam, Didem Özdemir, Neslihan Çuhacı, Hüsniye Başer, Ahmet Dirikoç, Cevdet Aydın, Aylin Kılıç Yazgan, Reyhan Ersoy, Bekir Çakır
OBJECTIVES: In this study, we aimed to evaluate the usefulness of a new parameter -ratio of the biggest tumor diameter to total tumor diameter- for the differentiation of agressive and favorable papillary thyroid microcarcinomas (PTMC). MATERIALS AND METHODS: The diameter of the biggest tumor focus was taken as the primary tumor diameter. Total tumor diameter was calculated as the sum of the maximal diameter of each lesion. Ratio of primary tumor diameter to total tumor diameter was defined as tumor diameter ratio (TDR)...
February 2017: Oral Oncology
https://www.readbyqxmd.com/read/28025079/%C3%AE-iii-tubulin-overexpression-is-linked-to-agressive-tumor-features-and-genetic-instability-in-urinary-bladder-cancer
#11
Andrea Hinsch, Aref Chaker, Christian Burdelski, Christina Koop, Maria Christina Tsourlakis, Stefan Steurer, Michael Rink, Till Simon Eichenauer, Waldemar Wilczak, Corinna Wittmer, Margit Fisch, Ronald Simon, Guido Sauter, Franziska Büschek, Till Clauditz, Sarah Minner, Frank Jacobsen
Development of genetic instability is a hallmark of tumor progression. Type III ß-tubulin (TUBB3) is a component of microtubules involved in chromosome segregation. Its overexpression has been linked to adverse features of urinary bladder cancer. To investigate the role of TUBB3 for development of genetic instability, we compared TUBB3 expression with histopathological features and surrogate markers of genetic instability and tumor aggressiveness, copy number changes of HER2, TOP2A, CCND1, RAF1, and FGFR1, nuclear accumulation of p53, and cell proliferation, in a tissue microarray with >700 bladder cancers...
December 23, 2016: Human Pathology
https://www.readbyqxmd.com/read/27745723/-psychological-processes-of-stress-management-and-neuroendocrine-regulation-in-incarcerated-adolescent-offenders-a-pilot-study
#12
L Guillod, S Habersaat, M Suter, T Jeanneret, C Bertoni, P Stéphan, S Urben
BACKGROUND: Adolescence is a stressful period where important biological, psychological and social changes occur. Adolescents are particularly vulnerable during this developmental period and can use various strategies to deal with daily stress, such as substance use or externalizing behaviors. In previous studies, stress in adolescents with externalizing behaviors was often linked to ineffective cognitive coping strategies (i.e., constructive thinking) and overlooking the biological aspects involved in stress management such as neuroendocrine regulation...
October 10, 2016: L'Encéphale
https://www.readbyqxmd.com/read/27725909/cell-cycle-dependent-rrm2-may-serve-as-proliferation-marker-and-pharmaceutical-target-in-adrenocortical-cancer
#13
Vince Kornél Grolmusz, Katalin Karászi, Tamás Micsik, Eszter Angéla Tóth, Katalin Mészáros, Gellért Karvaly, Gábor Barna, Péter Márton Szabó, Kornélia Baghy, János Matkó, Ilona Kovalszky, Miklós Tóth, Károly Rácz, Péter Igaz, Attila Patócs
Adrenocortical cancer (ACC) is a rare, but agressive malignancy with poor prognosis. Histopathological diagnosis is challenging and pharmacological options for treatment are limited. By the comparative reanalysis of the transcriptional malignancy signature with the cell cycle dependent transcriptional program of ACC, we aimed to identify novel biomarkers which may be used in the histopathological diagnosis and for the prediction of therapeutical response of ACC. Comparative reanalysis of publicly available microarray datasets included three earlier studies comparing transcriptional differences between ACC and benign adrenocortical adenoma (ACA) and one study presenting the cell cycle dependent gene expressional program of human ACC cell line NCI-H295R...
2016: American Journal of Cancer Research
https://www.readbyqxmd.com/read/27647326/glypican-3-distinguishes-aggressive-from-non-aggressive-odontogenic-tumors-a-preliminary-study
#14
Ramon Barreto Mendes, Rosane Borges Dias, Andreia Leal Figueiredo, Clarissa Araújo Gurgel, Manoel Santana Filho, Leonardo Araújo Melo, Marília Trierveiler, Patrícia Ramos Cury, Rosalia Leonardi, Jean Nunes Dos Santos
BACKGROUND: Glypican-3 is a cell surface proteoglycan that is found in embrionary tissues, and there are no studies investigating this protein in odontogenic tumor. Thus, the aim of this study was to investigate glypican-3 in a series of aggressive and non-aggressive odontogenic tumors. METHODS: Fifty-nine cases of tumors were divided into aggressive odontogenic tumors (20 solid ameloblastomas, four unicystic ameloblastoma, 28 KOTs including five associated with Gorlin-Goltz syndrome) and non-aggressive odontogenic tumors (five adenomatoid odontogenic tumors and two calcifying cystic odontogenic tumors) and analyzed for glypican-3 using immunohistochemistry...
April 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/27635300/urothelial-carcinoma-of-the-allograft-kidney-developed-in-a-renal-transplant-patient
#15
Mehmet İlker Gökçe, Akın Fırat Kocaay, Serkan Aktürk, Acar Tüzüner
Renal transplantation is the best option in the treatment of end-stage renal disease However these patients are under the risk of developing malignancies particularly due to effects of immune supression. These malignancies tend to be more agressive compared to the general population. Here, we present a case of urothelial carcinoma develoing in the ureter of allograft kidney.
September 2016: Turkish Journal of Urology
https://www.readbyqxmd.com/read/27518431/agressive-osteoblastoma-in-a-seven-year-old-girl-s-mandible-treatment-and-six-year-monitoring
#16
Paulo Henrique Souza Castro, Danielle Lima Molinari, Hiran Queiroz Stateri, Alvaro Henrique Borges, Luiz Evaristo Ricci Volpato
INTRODUCTION: Osteoblastoma is a rare benign bone tumor with locally aggressive behavior in some cases; however, with rare malignant transformations. A case of osteoblastoma in a seven-year-old patient's mandible is presented. PRESENTATION OF CASE: After the diagnosis, the patient underwent two stages of treatment. In the first intervention, an intralesional curettage was performed as well as a marsupialization of the lesion, in order to reduce its volume and allow a second and more conservative surgical period...
2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27509934/does-the-presence-of-primary-circulating-prostate-cells-imply-the-presence-of-agressive-prostate-cancer-with-early-biochemical-failure-a-comparison-with-the-walz-nomogram
#17
COMPARATIVE STUDY
Nigel P Murray, Eduardo Reyes, Nelson Orellana, Cynthia Fuentealba, Sebastian Orellana, Omar Jacob
BACKGROUND: To determine the utility of primary circulating prostate cells (CPC) for predicting early biochemical failure after radical prostatectomy for prostate cancer and compare the results with the Walz nomogram. MATERIALS AND METHODS: A single centre prospective study of men with prostate cancer treated with radical prostatectomy was conducted between 2004 and 2014. Clinicalpathological details were registered, along with total serum PSA presurgery, Gleason score, extracapsular extension, positive surgical margins, infiltration of lymph nodes, seminal vesicles and pathological stage...
2016: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/27437302/giant-leiomyosarcoma-of-the-urinary-bladder
#18
José G A Ribeiro, Carlos A B Klojda, Claudio P De Araújo, Lucas A S Pires, Marcio A Babinski
The bladder leiomyosarcoma is a rare and agressive mesenchymal tumour, and adult women of reproductive age have a higher incidence of developing the bladder leiomyosarcoma. The pathophysiology of the disease is not certain, and its main symptoms are hematuria, dysuria and abdominal pain. There are not a considerable amount of cases described in the literature. We report a case of a giant leiomyosarcoma of the urinary bladder in a 31-year-old woman.
May 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27402320/management-of-splenic-and-pancreatic-trauma
#19
REVIEW
E Girard, J Abba, N Cristiano, M Siebert, S Barbois, C Létoublon, C Arvieux
The spleen and pancreas are at risk for injury during abdominal trauma. The spleen is more commonly injured because of its fragile structure and its position immediately beneath the ribs. Injury to the more deeply placed pancreas is classically characterized by discordance between the severity of pancreatic injury and its initial clinical expression. For the patient who presents with hemorrhagic shock and ultrasound evidence of major hemoperitoneum, urgent "damage control" laparotomy is essential; if splenic injury is the cause, prompt "hemostatic" splenectomy should be performed...
August 2016: Journal of Visceral Surgery
https://www.readbyqxmd.com/read/27161090/pathological-outcomes-and-agressiveness-of-low-risk-prostate-cancer-in-northern-african-men
#20
A Ammani, A Janane, B Bouzide, Y Dehayni, M Lezrek, M Ghadouane, A Ameur, M Abbar, A Qarro, M Alami
BACKGROUND: Northern African (NAf) men show a high incidence of advanced prostate cancer (PCa) at diagnosis. Several studies suggested the existence of ethnic differences in the PCa aggressiveness and this has led to some concerns related to the inclusion of some ethnic groups into active surveillance protocols. OBJECTIVE: To evaluate pathological outcomes and aggressiveness of low risk PCa treated by radical prostatectomy in a NAf ethnic group. SUBJECTS AND METHODS: Data of 147 NAfs, who underwent radical prostatectomy for low risk PCa diagnosed via a 12-core biopsy in 2 academic centers between 2011 and 2015, were reviewed retrospectively to assess rates of worse pathological outcomes defined as: Gleason score upgrade to at least 3+4, upstage to pT3a or higher or pN1, and positive surgical margins...
November 2016: Actas Urologicas Españolas
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