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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/28944671/prioritizing-popular-proteins-in-liver-cancer-remodelling-one-carbon-metabolism
#2
María Isabel Mora, Manuela Molina, Leticia Odriozola, Felix Elortza, Jose M Mato, Barbara Sitek, Pumin Zhang, Fuchu He, Maria Uxue Latasa, Matías Avila, Fernando Corrales
Primary liver cancer (HCC) is recognized as the fifth most common neoplasm and the second leading cause of cancer deaths worldwide. Most risk factors are known and the molecular pathogenesis has been widely studied in the last decade; however, the underlying molecular mechanisms remain to be unveiled, as they will facilitate definition of novel biomarkers and clinical targets for more effective patient management. In this study, we utilize the B/D-HPP popular protein strategy. We report a list of popular proteins that have been highly co-cited with the expression "liver cancer"...
September 25, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28944505/taxonomy-of-cns-tumours-a-series-of-three-short-reviews-on-the-who-2016-classification-and-beyond
#3
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/28944479/temporal-horizontal-h-figure-sliding-skin-flap-for-central-eyelid-reconstructive-surgery-in-dogs-a-retrospective-study
#4
C Giordano, A Vercelli, G Barsotti
OBJECTIVE: To describe a modified H-figure sliding skin flap for treating eyelid central neoplasms and to evaluate the cosmetic and functional results of this reconstructive blepharoplasty. MATERIAL AND METHODS: Eight dogs affected by eyelid neoplasia involving more than one-third of the central part of the margin underwent an en bloc rectangular surgical removal of the neoplasia. Reconstructive surgery was performed using a temporal horizontal H-figure sliding skin flap...
September 25, 2017: Journal of Small Animal Practice
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
#5
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/28943202/-diagnostic-challenges-on-breast-needle-core-biopsies-case-1-low-grade-fibroepithelial-neoplasm
#6
Aurélie Maran-Gonzalez
No abstract text is available yet for this article.
September 21, 2017: Annales de Pathologie
https://www.readbyqxmd.com/read/28942697/ovarian-masses-in-pediatric-patients-a-multicenter-study-of-98-surgical-cases-in-tunisia
#7
I Abid, M Zouari, M Jallouli, S Sahli, A Bouden, R Ben Abdallah, F Trabelsi, A Jabloun, A Charieg, C Mrad, M Marzouki, S Mosbahi, A Ezzi, R Mootamri, M Hamzaoui, N Kaabar, S Jlidi, A Nouri, R Mhiri
Ovarian masses requiring surgical intervention are uncommon in the pediatric population. Our aim is to report results of a multicentric Tunisian study concerning the clinical practice and the management of pediatric ovarian masses and to identify the factors that are associated with ovarian preservation. Between January 2000 and December 2015, 98 pediatric patients (<14 years) were surgically treated for ovarian masses at the five pediatric surgery departments in Tunisia. Ninety-eight patients were included in this study...
September 23, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28942516/approach-to-mpn-symptom-assessment
#8
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/28942409/a-rare-highly-aggressive-tumour-lymphoepithelioma-like-thymic-carcinoma
#9
Joanne Michelle Dumlao Gomez, Gulrana Syed, Michael Lawrenz Ferreras Co, Mohamed Bayoumi, Richard Abrams
Lymphoepithelioma-likethymic carcinoma is a rare neoplasm that presents with compressive symptoms or as an incidental radiological finding of an anterior mediastinal mass. It is an aggressive carcinoma with a high rate of invasion, metastasis and recurrence. Its diagnosis usually carries a poor prognosis largely due to propensity for late diagnosis. To date, guidance for treatment remains limited. This is a case of lymphoepithelioma-like thymic carcinoma in a young male adult who presented initially with back pain...
September 23, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28942309/benign-bilateral-adenomyoepithelioma-of-the-mammary-gland-in-a-ring-tailed-lemur-lemur-catta
#10
A Suárez-Bonnet, E Rodríguez Grau-Bassas, P Herráez, O Quesada-Canales, S L Priestnall, A Espinosa de Los Monteros
Naturally occurring mammary tumours are uncommon in prosimians. A 20-year-old female ring-tailed lemur (Lemur catta) developed bilateral enlargement of the mammary glands. Surgical removal revealed that both masses were comprised of multiple nodules and cystic areas that entirely replaced the normal glands. Histologically, a benign neoplastic biphasic cellular proliferation, composed of luminal-epithelial and basal-myoepithelial components, was identified. Immunohistochemical analysis for expression of cytokeratin (CK) AE1/AE3, CK7, CK5 + 8, CK14, vimentin, p63 and 14-3-3σ highlighted the biphasic nature of the neoplasm...
August 2017: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/28942300/annular-stenotic-oesophageal-squamous-cell-carcinoma-in-cattle-exposed-naturally-to-bracken-fern-pteridium-arachnoideum
#11
T C Faccin, E K Masuda, J V M Piazer, S M P Melo, G D Kommers
Oesophageal squamous cell carcinomas (SCCs) may be observed as exophytic masses or ulcerative or infiltrative endophytic neoplasms. However, in cattle, there is also an uncommon gross presentation as an annular stenotic thickening of the oesophageal wall. Thirteen cases of annular stenotic oesophageal SCC in cattle grazing in bracken fern (Pteridium arachnoideum) areas are reported. The lesions consisted of endophytic masses, focally extensive, firm and circumferential (annular) in the oesophageal wall. Pronounced wrinkling of the mucosa, with retracted uneven areas and subsequent luminal narrowing (stenosis), was observed in all cases...
August 2017: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/28942293/immunohistochemical-profile-of-20-feline-renal-cell-carcinomas
#12
J A Ramos-Vara, E F Edmondson, M A Miller, D M Dusold
Renal cell carcinoma (RCC) is uncommon in cats, but makes up the majority of epithelial neoplasms in the kidney. The immunohistochemical profile of 20 feline RCCs (13 tubular carcinomas, four tubulopapillary carcinomas, one papillary carcinoma and two anaplastic carcinomas) was evaluated. Primary antibodies used were specific for Pax8, KIT, CD10, cytokeratins and vimentin. A polymer-based immunoperoxidase procedure was used. Nineteen tumours (95%) expressed Pax8; 12 (60%), KIT; 15 (75%), CD10; 20 (100%), cytokeratins; and 19 (95%), vimentin...
August 2017: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/28942226/intraductal-papillary-mucinous-neoplasm-of-the-pancreas-associated-with-neuroendocrine-tumor-a-case-report
#13
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/28941871/accuracy-of-dermatoscopy-for-the-diagnosis-of-nonpigmented-cancers-of-the-skin
#14
Christoph Sinz, Philipp Tschandl, Cliff Rosendahl, Bengu Nisa Akay, Giuseppe Argenziano, Andreas Blum, Ralph P Braun, Horacio Cabo, Jean-Yves Gourhant, Juergen Kreusch, Aimilios Lallas, Jan Lapins, Ashfaq A Marghoob, Scott W Menzies, John Paoli, Harold S Rabinovitz, Christoph Rinner, Alon Scope, H Peter Soyer, Luc Thomas, Iris Zalaudek, Harald Kittler
BACKGROUND: Nonpigmented skin cancer is common, and diagnosis with the unaided eye is error prone. OBJECTIVE: To investigate whether dermatoscopy improves the diagnostic accuracy for nonpigmented (amelanotic) cutaneous neoplasms. METHODS: We collected a sample of 2072 benign and malignant neoplastic lesions and inflammatory conditions and presented close-up images taken with and without dermatoscopy to 95 examiners with different levels of experience...
September 20, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28941266/kaposi-s-sarcoma-concealed-by-stasis-dermatitis-in-a-patient-with-psoriasis
#15
Hilal Kaya Erdoğan, Işıl Bulur, Zeynep Nurhan Saraçoğlu, Tekden Karapınar, Deniz Arık
Kaposi's sarcoma (KS) is a multifocal and angioproliferative neoplasm. KS may be accompanied by psoriasis; however, in most of these cases the main mechanism involves iatrogenic KS associated with the immunosuppressive drugs that are used in psoriasis treatment. In angioproliferative lesions as a result of venous insufficiency and stasis dermatitis, acroangiodermatitis (pseudo-KS) is initially considered. However, the concurrent occurrence of psoriasis, stasis dermatitis, and KS has not been previously reported...
September 2017: Acta Dermatovenerologica Alpina, Panonica, et Adriatica
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
#16
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/28940583/molecular-genotyping-of-noninvasive-encapsulated-follicular-variant-of-papillary-thyroid-carcinoma
#17
Tae Hyuk Kim, Minju Lee, Ah-Young Kwon, Jun-Ho Choe, Jung-Han Kim, Jee Soo Kim, Soo Yeon Hahn, Jung Hee Shin, Man Ki Chung, Young Ik Son, Chang-Seok Ki, Hyun Sook Yim, Yoo-Li Kim, Jae Hoon Chung, Sun Wook Kim, Young Lyun Oh
AIM: Noninvasive encapsulated follicular variant of papillary thyroid carcinoma (FVPTC) has been managed as low-risk malignancy. Recently, a proposal was made to reclassify this tumor type as a premalignant lesion and rename it noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP). However, a comprehensive study on molecular genotype-phenotype correlations of encapsulated FVPTC is lacking. METHODS AND RESULTS: This study consisted of 177 consecutive FVPTCs from January 2014 to April 2016...
September 20, 2017: Histopathology
https://www.readbyqxmd.com/read/28940307/frequent-braf-mutations-suggest-a-novel-oncogenic-driver-in-colonic-neuroendocrine-carcinoma
#18
Kamran Idrees, Chandrasekhar Padmanabhan, Eric Liu, Yan Guo, Raul S Gonzalez, Jordan Berlin, Kimberly B Dahlman, R Daniel Beauchamp, Chanjuan Shi
BACKGROUND AND OBJECTIVES: The World Health Organization (WHO) 2010 has classified GI neuroendocrine neoplasms into neuroendocrine tumor (NET) and high-grade neuroendocrine carcinoma (NEC). The genetic underpinnings of NEC are poorly understood. The aim of the study was to perform genomic profiling of NEC to better characterize this aggressive disease. METHODS: We identified nine patients with colonic NEC between January 1, 2005 and June 30, 2013. Whole exome sequencing (WES) was performed on tumor DNA from two patients with ≥80% tumor cellularity and matched normal tissue available...
September 20, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28939930/-upper-abdominal-pain-and-febrile-episodes-in-a-44-year-old-filipino-woman
#19
A Deimel, J Sturm, T Vielfort, T Zöpf
A 44-year-old Filipino woman presented with abdominal pain and fever. Clinical examination and blood tests revealed no pathological results; however, (cross-sectional) imaging showed saccular cystic bile duct dilatation in the right liver with solid intraductal masses. Due to the clinical presentation the patient was admitted for surgical intervention with the diagnosis of Caroli disease. During the surgical procedure histopathology showed an intraductal papillary neoplasm of the bile duct (IPNB). The planned segmentetomy was extended to hemihepatectomy...
September 22, 2017: Der Internist
https://www.readbyqxmd.com/read/28939925/ocular-adnexal-marginal-zone-lymphoma-of-mucosa-associated-lymphoid-tissue
#20
REVIEW
Dimitrios Kalogeropoulos, Alexandra Papoudou-Bai, Panagiotis Kanavaros, Chris Kalogeropoulos
Ocular adnexal lymphomas are a group of heterogeneous neoplasms representing approximately 1-2% of non-Hodgkin lymphomas and 8% of extranodal lymphomas. The incidence of primary ocular adnexal lymphoid tumors has raised over the last decades, and this could be probably attributed to the more sophisticated diagnostic techniques. Due to the wide spectrum of clinical manifestations, ocular tissue biopsy is important in order to set a precise diagnosis based on histological, immunophenotypical and, in some cases, molecular findings...
September 22, 2017: Clinical and Experimental Medicine
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