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https://www.readbyqxmd.com/read/28945051/radiologic-characteristics-of-ependymomas-a-case-based-approach
#1
David Khatami, Ekkehard M Kasper, Rafeeque Bhadelia, Rafael Rojas
The purpose of this paper is to interoduce and review the characteristic imaging features of ependymal neoplasms through a comprehensive case-based approach. Illustrated cases highlight both common and uncommon manifestations of CNS-ependymomas. The combination of imaging features, location of the tumor, and patient's demographics often allow the suggestion of ependymoma as a lead entity in the differential diagnosis. However, significant overlap exists between the radiologic characteristics of ependymomas and those of other tumors commonly encountered in the same locations, which can pose a challenge for a definitive diagnosis based on imaging alone...
September 22, 2017: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/28944505/taxonomy-of-cns-tumours-a-series-of-three-short-reviews-on-the-who-2016-classification-and-beyond
#2
EDITORIAL
Pieter Wesseling, Thomas S Jacques
In May 2016, an update of the 4th edition of the World Health Organization (WHO) Classification of Tumours of the Central Nervous System (CNS) was officially released [1]. This revised 4th edition represents a paradigm shift as, for the first time, the definition of multiple CNS tumour entities is now partly based on particular genotypic characteristics. Additionally, compared to the 4th edition (published in 2007), some splitting and lumping of entities occurred because of new insights in the genetic underpinnings of CNS tumours and/or based on more recently published clinico-pathologic studies...
September 25, 2017: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/28943417/giant-cell-ependymoma-of-the-lateral-ventricle-case-report-literature-review-and-analysis-of-prognostic-factors-and-genetic-profile
#3
Hirokazu Takami, Christopher Graffeo, Avital Perry, Aditya Raghunathan, Robert B Jenkins, Caterina Giannini, Terry C Burns
Giant cell ependymoma (GCE) is a rare primary CNS neoplasm. We report a case of GCE arising in the lateral ventricle. A 22-year-old female presented with generalized seizures. MRI demonstrated a diffuse, non-enhancing, multi-cystic mass centered in the atrium of the right lateral ventricle with extension throughout the frontal and temporal horns. An initial subtotal resection yielded the signature biphasic pattern of GCE. The dominant component contained pleomorphic, bizarre-appearing giant cells with low mitotic index, and a minor component comprised monomorphic, highly cellular, mitotically active cells that formed perivascular pseudorosettes...
September 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28942516/approach-to-mpn-symptom-assessment
#4
REVIEW
Holly Geyer, Ruben A Mesa
PURPOSE OF REVIEW: Myeloproliferative neoplasms (MPNs) are recognized for their debilitating symptom burdens. The purpose of this review is to understand the complexity of the MPN symptom burden and identify how validated MPN Patient Reported Outcome (PRO) tools may be integrated into clinical practice to assess the MPN symptom burden. RECENT FINDINGS: Significant heterogeneity exists both within and between MPN subtypes. Surrogates of disease burden such as risk scores and MPN chronicity often fail to correlate with symptomatic burden...
September 23, 2017: Current Hematologic Malignancy 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/28941185/noninvasive-follicular-thyroid-neoplasm-with-papillary-like-nuclear-features-niftp-implications-for-the-risk-of-malignancy-rom-in-the-bethesda-system-for-reporting-thyroid-cytopathology-tbsrtc
#6
Haijun Zhou, Zubair W Baloch, Ritu Nayar, Tommaso Bizzarro, Guido Fadda, Deepti Adhikari-Guragain, Joseph Hatem, Luigi M Larocca, Julia Samolczyk, Jamie Slade, Esther Diana Rossi
BACKGROUND: The introduction of noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) affects the risk of malignancy (ROM) mostly in the Bethesda System for Reporting Thyroid Cytopathology (TBSRTC) categories. In this multi-institutional, retrospective study, the authors investigated variations in the impact of an NIFTP diagnosis on the associated ROM for each TBSRTC category with an emphasis on the influence of pathologist and institutional diagnostic thresholds on the ROM...
September 20, 2017: Cancer
https://www.readbyqxmd.com/read/28941174/a-drug-development-perspective-on-targeting-tumor-associated-myeloid-cells
#7
REVIEW
Meher Majety, Valeria Runza, Christian Lehmann, Sabine Hoves, Carola H Ries
Despite decades of research, cancer remains a devastating disease and new treatment options are needed. Today cancer is acknowledged as a multifactorial disease not only comprising of aberrant tumor cells, but also the associated stroma including tumor vasculature, fibrotic plaques and immune cells that interact in a complex heterotypic interplay. Myeloid cells represent one of the most abundant immune cell population within the tumor stroma and are equipped with a broad functional repertoire that promotes tumor growth by suppressing cytotoxic T cell activity, stimulating neo-angiogenesis and tissue remodeling...
September 22, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28939075/incidence-of-facial-nerve-sacrifice-in-parotidectomy-for-primary-and-metastatic-malignancies
#8
Brian Swendseid, Shawn Li, Jason Thuener, Rod Rezaee, Pierre Lavertu, Nicole Fowler, Chad Zender
INTRODUCTION: The parotid gland may become involved by primary parotid malignancies and secondarily by metastases from other primary sites. Surgical resection of these tumors can be technically challenging due to the intimate relationship of the parotid gland and the facial nerve. The primary aim of this project was to determine the incidence of facial nerve sacrifice in parotidectomy for primary and secondary malignancies of the parotid. METHODS: A retrospective chart review of was performed...
October 2017: Oral Oncology
https://www.readbyqxmd.com/read/28937779/-changes-of-the-who-classification-of-lymphoid-neoplasms-in-the-context-of-the-2016-revision
#9
Tomáš Balhárek, Juraj Marcinek, Lukáš Plank
As a result of increasing knowledge, the validity of any tumour classification could not be unlimited. The aim of this article is to review the most important changes in the WHO classification of lymphoid neoplasms of a non-Hodgkin type that have been announced and published in relation to its revision in 2016. These changes are based on better understanding of pathogenesis and genetics of diseases, refine diagnostic criteria, reflect existence of rare forms and introduce new provisional categories of lymphoid neoplasms...
2017: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/28937778/-changes-of-the-who-classification-of-myeloid-neoplasms-in-the-context-of-the-2016-revision
#10
Juraj Marcinek, Tomáš Balhárek, Lukáš Plank
Continual progress of knowleges in hematopathology and genetics of hematologic tumors requires actualisation of widely accepted and presently used WHO classification of myeloid neoplasms published 8 years ago. However, the basic principles of this classification remain unchanged, therefore the authors of new WHO classification mention the "revision" of previous and not the introduction o new classification. The aim of this paper is to outline the most important changes of myeloid neoplasm diagnostics to pathologists, hematologists and other clinicians in Czech Republic and Slovakia...
2017: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/28937580/diagnosis-of-systemic-inflammatory-diseases-among-patients-admitted-for-acute-pericarditis-with-pericardial-effusion
#11
Maureen Assayag, Rachid Abbas, Noémie Chanson, Anne Perozziello, Gregory Ducrocq, Jean-François Alexandra, Antoine Dossier, Thomas Papo, Karim Sacre
AIMS: Acute pericarditis may be the heralding manifestation of various systemic inflammatory diseases (SIDs). The aim of this study was to identify clinical indicators for SIDs in patients admitted for acute pericarditis with pericardial effusion. METHODS: All consecutive adult patients hospitalized in a Department of Internal Medicine over a 10-year period for acute pericarditis with pericardial effusion were retrospectively reviewed. Patients with cancer and tuberculosis were excluded...
September 20, 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28937426/seborrheic-keratosis-with-prominent-clear-cell-changes-a-rare-but-important-diagnostic-variant
#12
Thomas H Long, David Zlotnick, Stanley L Hurst, Zsolt Argenyi
Seborrheic keratoses, although exceedingly common, occasionally have morphologic similarities to other lesions that complicate a typically straightforward diagnosis. The authors present a case of a 69-year-old man with a left shoulder lesion that displayed characteristic clinical and microscopic features of seborrheic keratosis on biopsy. However, diffuse and prominent clear cells were also noted. These stained strongly with Periodic acid-Schiff and were diastase sensitive, suggestive of glycogen accumulation and possible trichilemmal differentiation...
September 12, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28937380/bilateral-ovarian-metastases-as-the-presenting-manifestation-of-lung-carcinoid-in-a-50-year-old-woman-case-study-and-review-of-literature
#13
Subhashis Mitra, Amiya Jhunjhunwala, Hema Chakraborty
Neuroendocrine tumors (NETs) are neoplasms arising from dispersed neuroendocrine cells, localized to the gastrointestinal tract (GIT), lungs, adrenal medulla, and other sites. The term "carcinoid tumor" is usually limited to NETs of the lung and GIT. Ovarian carcinoids are uncommon, accounting for 0.1% of ovarian malignancies and 5% of all NETs. Primary ovarian tumors arise in pure form or as a component of teratomas, while ovarian NET metastases are predominantly from gastrointestinal primaries. To the best of our knowledge, there are only two previous reports of bronchopulmonary carcinoids (PCs) metastasizing to the ovaries...
July 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28936888/dual-energy-ct-applications-in-pancreatic-pathologies
#14
Elizabeth George, Jeremy R Wortman, Urvi P Fulwadhva, Jennifer W Uyeda, Aaron D Sodickson
Dual energy CT is a technology that is gaining widespread acceptance, particularly for its abdominopelvic applications. Pancreatic pathologies are an ideal application for the many advantages offered by dual energy post-processing. This article reviews the current literature on dual energy CT pancreatic imaging, specifically in the evaluation of pancreatic adenocarcinoma, other solid and cystic pancreatic neoplasms, and pancreatitis. The advantages in characterization and quantification of enhancement, detection of subtle lesions, and potential reduction of imaging phases and contrast usage are reviewed...
September 22, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28936155/intracranial-solitary-fibrous-tumor-hemangiopericytoma-report-of-two-cases-and-literature-review
#15
Hani Talal Aljohani, D Chaussemy, F Proust, S Chibbaro
Intracranial solitary fibrous tumors (ISFTs) are rare mesenchymal neoplasms originating in the meninges and constitute a heterogeneous group of rare spindle cell tumors that include benign and malignant neoplasms of which hemangiopericytoma is nowadays considered a cellular phenotypic variant. ISFT usually shows benign or indolent clinical behavior. We describe two cases of ISFT managed in our institution along with a review of pertinent literature.
July 2017: International Journal of Health Sciences
https://www.readbyqxmd.com/read/28932042/small-cell-neuroendocrine-carcinoma-of-the-paranasal-sinus-with-intraoral-involvement-report-of-a-rare-case-and-review-of-the-literature
#16
Anita Spadigam, Anita Dhupar, Shaheen Syed, Shruti U Nagvekar
The diffuse neuroendocrine system continues to be an enigmatic topic of study in pathology due to its controversial embryologic origins, biology and a variety of tumors engendered. Originally thought to be localized to the classic neuroendocrine organs (pituitary, thyroid, pancreas and adrenal medulla), the neuroendocrine cells are now known to be distributed in every organ system of the body. A number of human diseases have been linked to aberrations in the functioning of the neuroendocrine cells. Neoplasms of the neuroendocrine system can thus occur in myriad primary sites and range in behavior from benign to lethal...
May 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28931291/-malignant-tumors-of-the-small-bowel
#17
L Němec, P Fabian, J Tomášek, J Jarkovský, R Šefr, L Fiala
INTRODUCTION: Malignant tumors of the small bowel are relatively uncommon neoplasms; their incidence is around 1.5 per 100,000 inhabitants in the Czech Republic. METHOD: 104 patients underwent a resection of the small bowel because of a primary or secondary tumor over the 10-year period between 20062015 at the Masaryk Memorial Cancer Institute. Data from these patients was reviewed retrospectively. Survival rates were analyzed using the Kaplan-Meier method. RESULTS: We observed 45 primary and 59 secondary tumors...
2017: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
https://www.readbyqxmd.com/read/28930625/ectopic-adrenal-tissue-associated-with-borderline-mucinous-cystadenoma-of-ovary-a-case-report-with-review-of-the-literature
#18
Kah Teik Chew, Muhammad Azrai Abu, Yulianty Arifuddin, Nor Azlin Mohamed Ismail, Noor Ain Mohd Nasir, Fazarina Mohammed, Abdul Ghani Nur Azurah
Ectopic adrenal tissue in the ovary is a rare entity. We reported a case of ectopic adrenal tissue in borderline mucinous cystadenoma of the left ovary. A 22 year-old student presented with progressive abdomen distension associated with discomfort for 3 months. Imaging investigation was suggestive of mucinous left ovarian cyst. Left salpingo-oophorectomy was performed and the histopathology revealed borderline mucinous cystadenoma with an incidental finding of ectopic adrenal tissue. This is an interesting case because of its rarity and potential risk of neoplasm changes...
September 20, 2017: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/28930374/the-prognostic-significance-of-soluble-programmed-death-ligand-1-expression-in-cancers-a-systematic-review-and-meta-analysis
#19
REVIEW
Y Ding, C Sun, J Li, L Hu, M Li, J Liu, L Pu, S Xiong
The differential expression of soluble programmed death ligand 1 (sPD-L1) has been found in some cancers; however, the correlation between sPD-L1 expression and prognosis value in tumour is still unclear. Here, we conducted a meta-analysis and systematic review to assess the prognostic value of sPD-L1 in patients with cancer. Eligible studies were searched for in the databases including PubMed, Web of Science, ScienceDirect and Wiley Online Library database. The pooled hazard ratios (HRs) with a 95% confidence interval (95%CI) were calculated to assess the prognostic significance of sPD-L1 in human cancer...
August 21, 2017: Scandinavian Journal of Immunology
https://www.readbyqxmd.com/read/28929544/computed-tomographic-appearance-of-canine-tonsillar-neoplasia-14-cases
#20
Florence Thierry, Maurizio Longo, Evi Pecceu, Davide D Zani, Tobias Schwarz
The palatine tonsil is an uncommon site of oral canine neoplasia. For affected tonsils, squamous cell carcinoma is the most frequent type of neoplasia, followed by melanoma and lymphoma. Computed tomography (CT) is increasingly used for investigation of canine oropharyngeal pathology; however, limited information is available on the CT appearance of tonsillar neoplasms. Objectives of this retrospective descriptive case series were to characterize the CT features of canine tonsillar neoplasia and determine whether specific CT features differentiate nonneoplastic from neoplastic tonsils...
September 19, 2017: Veterinary Radiology & Ultrasound
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