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Histopathology

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https://www.readbyqxmd.com/read/29783013/multiple-hereditary-exostoses-with-tetraparesis-due-to-cervical-spine-osteochondroma
#1
Ali Akhaddar, Mohamed Zyani, Issam Rharrassi
This is a case report about a 34-year-old man with hereditary multiple exostoses presented with gradual tetraparesis. Neuroimaging evaluation revealed an important posterior spinal cord compression by a C3 bony formation. Following posterior microsurgical decompression, the patient recovered nearly completely. Histopathological examination of the intraspinal lesion confirmed the diagnosis of benign osteochondroma. The patient returned to a normal life without evidence of recurrence at 2-year follow-up.
May 18, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29782959/targeting-central-%C3%AE-2-receptors-ameliorates-streptozotocin-induced-neuroinflammation-via-inhibition-of-glycogen-synthase-kinase3-pathway-in-mice
#2
Nora O Abdel Rasheed, Nesrine S El-Sayed, Aiman S El-Khatib
Alzheimer's disease (AD) is portrayed by progressive cognitive decline and pathological deposition of amyloid plaques as well as neurofibrillary tangles. Most of AD cases are sporadic, resulting from overlap of various environmental and genetic factors. Intra-cerebroventricular injection of streptozotocin (STZ) leads to insulin resistance brain state accompanied by memory decline, oxidative stress, and neuro-degeneration which mimic the pathologies associated with sporadic Alzheimer's disease (SAD). In the current study, protective effects of formoterol in STZ-induced SAD were studied...
May 18, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29782920/whole-lesion-histogram-analysis-of-meningiomas-derived-from-adc-values-correlation-with-several-cellularity-parameters-proliferation-index-ki-67-nucleic-content-and-membrane-permeability
#3
Alexey Surov, Gordian Hamerla, Hans Jonas Meyer, Karsten Winter, Stefan Schob, Eckhard Fiedler
PURPOSE: To analyze several histopathological features and their possible correlations with whole lesion histogram analysis derived from ADC maps in meningioma. MATERIALS AND METHODS: The retrospective study involved 36 patients with primary meningiomas. For every tumor, the following histogram analysis parameters of apparent diffusion coefficient (ADC) were calculated: ADCmean , ADCmax , ADCmin , ADCmedian , ADCmode , ADC percentiles: P10, P25, P75, P90, as well kurtosis, skewness, and entropy...
May 18, 2018: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29782916/identification-of-amino-acid-residues-in-infectious-hematopoietic-necrosis-virus-ihnv-nv-protein-necessary-for-viral-replication-and-pathogenicity
#4
Yang Wu, Li Wang, Tiantian Guo, Yanping Jiang, Xinyuan Qiao, Li Sun, Min Liu, Lijie Tang, Yigang Xu, Yijing Li
Our previous studies demonstrated that the nonstructural NV protein of infectious hematopoietic necrosis virus (IHNV) was essential for efficient viral replication and pathogenicity, and that the amino acid residues 32 EGDL35 of the NV protein were responsible for nuclear localization, and played important roles in suppressing IFN and inhibiting NF-κB activity. However, little is known about the influence of 32 EGDL35 on IHNV replication and pathogenicity. In the present study, two recombinant IHNV strains with deletions of NV 32 EGDL35 were generated and the effect on IHNV replication and pathogenicity was explored...
May 18, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29782900/basal-cell-carcinoma-part-1
#5
REVIEW
Michael C Cameron, Erica Lee, Brian Hibler, Christopher A Barker, Shoko Mori, Miguel Cordova, Kishwer S Nehal, Anthony M Rossi
As the most common human cancer worldwide and continuing to increase in incidence, basal cell carcinoma is associated with significant morbidity and cost. Continued advances in research have refined both our insight and approach to this seemingly ubiquitous disease. This 2-part continuing medical education article will provide a comprehensive and contemporary review of basal cell carcinoma. Part I of this series will describe our current understanding of this disease in regards to epidemiology, cost, clinical and histopathologic presentations, carcinogenesis, natural history, and disease associations...
May 18, 2018: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/29782621/darpp-32-and-t-darpp-promote-non-small-cell-lung-cancer-growth-through-regulation-of-ikk%C3%AE-dependent-cell-migration
#6
Sk Kayum Alam, Matteo Astone, Ping Liu, Stephanie R Hall, Abbygail M Coyle, Erin N Dankert, Dane K Hoffman, Wei Zhang, Rui Kuang, Anja C Roden, Aaron S Mansfield, Luke H Hoeppner
Lung cancer is the leading cause of cancer-related death worldwide. Here we demonstrate that elevated expression of dopamine and cyclic adenosine monophosphate-regulated phosphoprotein, Mr 32000 (DARPP-32) and its truncated splice variant t-DARPP promote lung tumor growth, while abrogation of DARPP-32 expression in human non-small cell lung cancer (NSCLC) cells reduces tumor growth in orthotopic mouse models. We observe a novel physical interaction between DARPP-32 and inhibitory kappa B kinase-α (IKKα) that promotes NSCLC cell migration through non-canonical nuclear factor kappa-light-chain-enhancer of activated B cells 2 (NF-κB2) signaling...
2018: Communications biology
https://www.readbyqxmd.com/read/29782306/urticarial-lesions-in-a-pregnant-woman
#7
Sergio Santos-Alarcón, Cesar Benavente-Villegas, Isabel García-Briz, Magdalena Moneva-Léniz, Celia Sanchis-Sánchez, Almudena Mateu-Puchades
Dear Editor, Gestational pemphigoid (GP) is a rare autoimmune bullous dermatosis in pregnancy. GP usually occurs during the second or third month of pregnancy. It clinically manifests as the development of either early-onset urticarial lesions or late-onset subepidermal blisters that may linger for weeks or even months. Herein we report the case of a 45-year-old woman with the distinctive clinical onset of GP. A forty-five-year-old woman, gravida I, para 0, at 27 weeks gestation, was referred for evaluation to our Department with an extensive pruritic eruption that had developed over the previous 7 days...
April 2018: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/29782304/role-of-in-vivo-reflectance-confocal-microscopy-in-the-analysis-of-melanocytic-lesions
#8
Elena-Daniela Serban, Francesca Farnetani, Giovanni Pellacani, Maria Magdalena Constantin
Worldwide melanoma incidence and mortality are increasing (1). Despite the ongoing research, advanced melanoma is still incurable; therefore, the most appropriate solution seems to be early detection combined with complete surgical excision (2). Since the diagnostic protocol of suspicious lesions includes a complete excision with safety margins (2), the problem of unnecessary scarring is significant. The real challenge in this case is to have a properly formulated diagnosis before acquiring a biopsy. Currently available non-invasive techniques are coherence tomography, digital dermoscopy, and reflectance confocal microscopy...
April 2018: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/29782301/lymphangioma-circumscriptum-post-radiotherapy-for-penile-cancer-treated-with-co%C3%A2-laser
#9
Dietmar Schulz, Andreas Lein, Ancuta Proca Nicula, Katrin Schierle, Caius Solovan
Lymphangioma circumscriptum (LC) is a rare, benign condition, predominantly characterized by the malformation of lymphatic skin vessels. Its onset may be congenital or due to secondary causes such as radiotherapy, infections, or surgical procedures. We present the case of a 55-year-old patient with a pathologic history of squamous cell carcinoma of the penis followed by radical penectomy. Due to metastasis to the locoregional lymph nodes, the entire affected area was subsequently treated with radiation therapy, receiving a total dose of 55...
April 2018: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/29782300/poikilodermatous-mycosis-fungoides-rare-entity-different-treatment-modalities
#10
Sandra Jerković Gulin, Romana Čeović, Ivana Ilić, Mirna Bradamante, Zrinka Bukvić Mokos, Krešimir Kostović
Poikilodermatous mycosis fungoides (PMF) is a rare clinical variant of early-stage MF with peculiar histological features. Poikiloderma occurs in many different clinical conditions, which makes a diagnostic procedure more complicated. PMF belongs to a group of MF variants with low risk of disease progression. We report a case of a 64-year-old woman, who presented with mottled skin aspect of erythema, poikilodermatous patches (hypopigmentation, hyperpigmentation, atrophy, and telangiectasia) on more than 80% of the body...
April 2018: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/29782138/testosterone-and-testicular-changes-in-f1-offspring-of-wistar-rats-maternally-exposed-to-nicotine-during-gestation
#11
Ibukun P Oyeyipo, Damilare H Adeyemi, Temilade R Abe
OBJECTIVES: This study aimed to determine the effect of intrauterine exposure to nicotine in the first fourteen days of gestation on the testicular function of male Wistar rats. METHODS: Pups of both control and nicotine-treated groups were selected and sacrificed on day 60 after birth. Birth weight, weight of reproductive organs, hormonal profile, and histopathology were determined in the first filial (F1) generation. RESULTS: Significant decreases in birth weight and litter size were found in the pups treated with nicotine when compared with the animals in the control group...
May 21, 2018: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/29782037/multiloculated-solitary-unicameral-bone-cyst-in-a-young-dog
#12
Sarah C Roode, Heather R Shive, Willemijn Hoorntje, Jennifer Bernard, Devorah M Stowe, Roy R Pool, Carol B Grindem
A 20-month-old female spayed Staffordshire Terrier (22.3 kg) presented to the Orthopedic Surgery Service at North Carolina State University Veterinary Teaching Hospital for evaluation of a 6-week history of toe-touching to nonweight-bearing lameness in the right hind limb. Radiographs of the right stifle revealed a multiloculated lytic lesion of the distal femur, with a large open lytic zone centrally, numerous osseous septations peripherally, and focal areas of cortical thinning and loss. An aspirate of the right distal femoral lesion yielded mildly cloudy serosanguineous fluid...
May 21, 2018: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/29781861/clinico-pathological-study-of-4-cases-of-pseudoherpetic-grover-disease-the-same-as-vesicular-grover-disease
#13
Tania M Capusan, María Herrero-Moyano, Javier Fraga, Mar Llamas-Velasco
INTRODUCTION: Grover disease (GD) was described with 4 histopathological patterns, but later wide histopathological studies found additional ones including vesicular GD. From 2014, 2 new patterns, GD with epidermolytic hyperkeratosis and pseudoherpetic GD, have been proposed. OBJECTIVES: The authors present 4 cases of pseudoherpetic GD and review the 6 previously published cases to better characterize this variant clinically and histopathologically. RESULTS: Half of the patients were men...
June 2018: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/29781561/the-clinical-characteristics-and-histopathological-features-of-chronic-rhinosinusitis-with-unilateral-nasal-polyps-in-136-patients-in-southern-china
#14
Zhuo Chen, Yang Peng, Chew Lip Ng, Peng Jin, Jing Liu, Ying Ying Li, Yan Yan, Yan Hui Liu, Xin Lan Luo, Qian Hui Qiu, De Yun Wang
Based on the presence of nasal polyps (NP) on endoscopy, chronic rhinosinusitis (CRS) has been clinically divided into CRS with nasal polyps (CRSwNP) and CRS without nasal polyps (CRSsNP). While the majority of cases are bilateral, NPs can present unilaterally. CRS with unilateral NP (UNP) is the most common presentation in unilateral polyposis, but there have been few studies on UNP. Lee et al have shown that UNP had more favorable objective surgical outcomes than bilateral disease. This article is protected by copyright...
May 21, 2018: Clinical Otolaryngology
https://www.readbyqxmd.com/read/29781545/preventive-measures-against-stricture-after-esophageal-esd-halfway-through-the-journey-to-the-best-method
#15
EDITORIAL
Yosuke Tsuji, Yoshiki Sakaguchi, Mitsuhiro Fujishiro, Kazuhiko Koike
Endoscopic submucosal dissection (ESD) for esophageal neoplasms with negligible risk of nodal metastasis has become standard treatment. A large tumor or a lesion with submucosal fibrosis can be resected with ESD in an en block manner. Moreover, ESD allows accurate histopathological diagnosis and reduces the risk of local recurrence. This article is protected by copyright. All rights reserved.
May 21, 2018: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/29781539/intermittent-resistance-exercise-and-obesity-considered-separately-or-combined-impair-spermatic-parameters-in-adult-male-wistar-rats
#16
Ana Paula Franco Punhagui, Giovana Rampazzo Teixeira, Marcelo Conrado de Freitas, Patricia Monteiro Seraphim, Glaura Scantamburlo Alves Fernandes
Obesity and absence of physical exercise are global problems that affect concentration and sperm quality in the male reproductive system. The purpose of this study was to examine the effect of obesity and resistance training, considered separately or in association, on testicular function and reproductive capacity. Twenty pubertal male Wistar rats were distributed into four groups: control (C) and exercise (E) groups that received standard rat chow; and obese (O) and obese with exercise (OE) groups that received a high-fat diet...
May 21, 2018: International Journal of Experimental Pathology
https://www.readbyqxmd.com/read/29781342/dw-mri-and-dce-mri-are-of-complementary-value-in-predicting-pathologic-response-to-neoadjuvant-chemoradiotherapy-for-esophageal-cancer
#17
Sophie E Heethuis, Lucas Goense, Peter S N van Rossum, Alicia S Borggreve, Stella Mook, Francine E M Voncken, Annemarieke Bartels-Rutten, Berthe M P Aleman, Richard van Hillegersberg, Jelle P Ruurda, Gert J Meijer, Jan J W Lagendijk, Astrid L H M W van Lier
PURPOSE: To explore the potential benefit and complementary value of a multiparametric approach using diffusion-weighted (DW-) and dynamic contrast-enhanced (DCE-) magnetic resonance imaging (MRI) for prediction of response to neoadjuvant chemoradiotherapy (nCRT) in esophageal cancer. MATERIAL AND METHODS: Forty-five patients underwent both DW-MRI and DCE-MRI prior to nCRT (pre), during nCRT (week 2-3) (per) and after completion of nCRT, but prior to esophagectomy (post)...
May 21, 2018: Acta Oncologica
https://www.readbyqxmd.com/read/29781265/lymphocytic-variant-of-hypereosinophilic-syndrome-presenting-with-polymorphic-cutaneous-manifestations-and-nonspecific-histopathological-findings
#18
Marco Cusini, Alessio Pizzati, Giovanni Genovese, Simona Muratori, Giuseppina Schinco, Emilio Berti
No abstract text is available yet for this article.
May 16, 2018: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/29781175/translational-safety-biomarkers-of-colonic-barrier-integrity-in-the-rat
#19
Tim Erkens, Ruud Bueters, Marjolein van Heerden, Filip Cuyckens, Rob Vreeken, Nick Goeminne, Lieve Lammens
The intestinal barrier controls intestinal permeability, and its disruption has been associated with multiple diseases. Therefore, preclinical safety biomarkers monitoring barrier integrity are essential during the development of drugs targeting the intestines, particularly if starting treatment early after onset of disease. Classical toxicology endpoints are not sensitive enough and therefore our objective was to identify non-invasive markers enabling early in vivo detection of colonic barrier perturbation...
May 20, 2018: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/29780964/cochlear-implant-histopathology
#20
Fred H Linthicum, Joni K Doherty, Ivan A Lopez, Akira Ishiyama
The microscopic examination of fifty-five serially sectioned implanted temporal bones has provided insight into what is being stimulated; and the changes that are the result of the insertion and presence of the implant. The ganglion cell bodies (neurons) are structures being stimulated (two laboratories have reported an inverse relationship of the number of neurons and performance). Insertion through the round window, verses a cochleostomy, produces the least fibrosis and new bone. Fibrosis and new bone do not affect the implant function unless they form in the scala vestibuli in the region of the ductus reuniens, and, block it; and produce cochlear hydrops resulting in a delayed low tone loss of hearing in hybrid implants...
December 2017: World Journal of Otorhinolaryngology—Head and Neck Surgery
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