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Skin AND histology

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https://www.readbyqxmd.com/read/28331735/metaplastic-breast-carcinoma-analysis-of-clinical-and-pathologic-characteristics-a-case-series
#1
Semra Salimoğlu, İsmail Sert, Mustafa Emiroğlu, Cem Karaali, Dilek Kuzukıran, Yasemin Akyüz Kırmızı, Gülden Diniz, Cengiz Aydın
OBJECTIVE: Metaplastic breast cancer (MBC) is a rare type of breast cancer that is considered to be clinically aggressive. The clinical significance and prognostic risk factors of MBC are limited. This study comprises a retrospective analysis of the clinical and pathologic findings of a series of patients treated for MBC. MATERIALS AND METHODS: The files of 657 patients who underwent surgery because of breast cancer at our clinic were examined and the data found on 11 patients who were diagnosed as having MBC were analyzed...
April 2016: J Breast Health (2013)
https://www.readbyqxmd.com/read/28329663/prognostic-modeling-in-desmoplastic-melanoma-using-different-cutpoints-for-the-proportion-of-desmoplasia
#2
Michael E Ming, Adaobi I Nwaneshiudu, Xiao-Wei Xu, Giorgos C Karakousis, David E Elder, Rosalie Elenitsas
Currently, desmoplastic melanomas are commonly divided into "pure" desmoplastic melanoma (at least 90% desmoplasia histologically) and "mixed" (<90%), with pure having a better prognosis, but our understanding of the relationship between percent desmoplasia and prognosis is incomplete. We sought to determine whether a more refined grading system that examined extent of desmoplasia by percent in 10% increments would be a better prognostic model. We also sought to determine the optimal cutpoint for percent desmoplasia if a single cutpoint were used...
September 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28329648/hormonal-and-reproductive-factors-and-incidence-of-basal-cell-carcinoma-in-a-population-based-cohort
#3
Catherine M Olsen, Nirmala Pandeya, Bridie S Thompson, Jean Claude Dusingize, Padmini Subramaniam, Christina M Nagle, Adele C Green, Rachel E Neale, Penny M Webb, David C Whitman
Estrogens have photosensitizing properties, but few prospective studies have examined the relationship between hormonal and reproductive factors and incidence of basal cell carcinoma (BCC) in women. Previous findings have been inconsistent, particularly in relation to parity and use of oral contraceptives (OCs) and menopausal hormone therapy (MHT). Given the heterogeneity in the literature, we sought to examine the association between hormonal and reproductive factors and BCC risk in a cohort of women (n=23,879) enrolled in the QSkin Study in 2011...
September 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28329637/dermatological-screening-of-an-elderly-population-the-rotterdam-study
#4
Martijn G H Sanders, Joris A C Verkouteren, Luba M Pardo
BackgroundThe recent WHO burden of disease project showed that the non-fatal skin disease related burden is high, but also that prevalence rates of many common skin diseases are not well documented. The aim of this study is to give an overview of (untreated) skin diseases in a population based sample of elderly.MethodsIn 2010, a full body skin examination (FBSE) was embedded in the Rotterdam Study, a prospective population based cohort study of an elderly white-skinned population in the Netherlands. The examination was conducted by a dermatology-trained physician and focused on most common skin diseases (e...
September 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28329634/comparing-survival-of-patients-with-single-or-multiple-primary-melanoma-in-the-netherlands-1994-2009
#5
L M Pardo, R J T Ven der Leest, E De Vries, I Soerjomataram, T Nijsten, L M Hollestein
There is conflicting literature as to whether the survival of patients with multiple melanoma is worse that this of single melanoma cases. We used extended Cox-proportional hazard models to estimate hazard-ratios (HR) of patients with multiple melanomas against single melanomas. Data from the nationwide Dutch Cancer Registry was used to retrieve cutaneous melanoma cases between 1994 and 2009 and linked with municipal records to assess the vital status. To account for the longer survival in the multiple melanoma cases we modelled multiple melanoma as time-varying variable, as well as Breslow thickness, histological subtype and nodal/distant metastasis...
September 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28329631/the-burden-of-keratinocyte-cancer-occurrence-multiplicity-and-predicting-risk
#6
David C Whiteman, Nirmala Pandeya, Bridie Thompson, Padmini Subramaniam, Jean Claude Dusingize, Rachel E Neale, Adele C Green, Catherine M Olsen
The costs of diagnosing and treating basal cell carcinomas (BCC) and squamous cell carcinomas (SCC) are the highest of all cancers in Australia. However, information regarding incidence, multiplicity and risk are scarce as keratinocyte cancers (KCs) are not captured by most registries. To address these gaps, we initiated the QSKIN Study in 2010 recruiting 43,794 Queensland residents from a population register (participation 24%). Participants self-completed a baseline survey recording information on residential history, sun exposure, phenotype and medical and family history...
September 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28329586/cd30-lymphoproliferative-disorder-in-a-patient-with-metastatic-papillary-thyroid-carcinoma
#7
Jeremy Udkoff, Philip R Cohen
Background CD30+ lymphoproliferative disorders are rare and may feature a wide variety of presentations that mimic other conditions. Purpose A man with metastatic papillary thyroid carcinoma to skin who subsequently developed cutaneous anaplastic large cell lymphoma is described. Methods The PubMed medical database was used to search the following terms separately and in combination: ALCL, anaplastic large cell lymphoma ALCL, cutaneous anaplastic large cell lymphoma CALCL, cutaneous t-cell lymphoma CTCL, large t-cell lymphoma LTCL, lymphoproliferative, lymphomatoid papulosis LyP, mimic, papillary, thyroid cancer...
October 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28329568/localized-cutaneous-argyria-report-of-two-patients-and-literature-review
#8
Bryce David Beutler, Robert A Lee, Philip R Cohen
BackgroundLocalized cutaneous argyria is a rare skin condition caused by direct contact with silver or silver particles. It presents as asymptomatic gray or blue-gray macules that appear similar to blue nevi. Histologic features include brown-colored or black-colored silver granules in the basement membrane and dermis, most commonly surrounding eccrine glands, elastic fibers, and collagen fibrils. The condition is most frequently observed in individuals who are regularly exposed to small silver particles, such as silversmiths and welders...
November 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28328709/the-clinical-and-histological-effect-of-a-low-fluence-q-switched-1-064-nm-neodymium-yttrium-aluminum-garnet-laser-for-the-treatment-of-melasma-and-solar-lentigo-in-asians-prospective-randomized-and-split-face-comparative-study
#9
Chikako Kaminaka, Fukumi Furukawa, Yuki Yamamoto
BACKGROUND: The low-fluence Q-switched 1,064-nm neodymium:yttrium-aluminum-garnet laser (QSNYL) is popular for melasma treatment among Asians. OBJECTIVE: This study was to evaluate the clinical and histological effects of the low-fluence QSNYL for treatment of melasma and solar lentigo. MATERIALS AND METHODS: In this randomized split-face clinical study, 22 patients with melasma or solar lentigo received low-fluence QSNYL weekly for 10 sessions on one cheek...
March 21, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28328616/borderline-tuberculoid-leprosy-masquerading-as-granuloma-annulare-a-clinical-and-histological-pitfall
#10
Tian Hao Zhu, Faranak Kamangar, Marc Silverstein, Maxwell A Fung
INTRODUCTION: Leprosy is a chronic granulomatous disease caused by Mycobacterium leprae, an intracellular acid-fast bacillus that tends to infect the skin and peripheral nerves. Because of the wide array of cutaneous manifestation, diagnosis is not always straightforward, especially in nonendemic regions of the world such as the United States. CASE REPORT: The authors report an unusual case of borderline tuberculoid leprosy in an 80-year-old white woman from California...
April 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28326562/liposome-encapsulated-hemoglobin-accelerates-skin-wound-healing-in-diabetic-db-db-mice
#11
Tsuyoshi Fukui, Akira T Kawaguchi, Susumu Takekoshi, Muneo Miyasaka, Hideaki Sumiyoshi, Rica Tanaka
Since liposome-encapsulated hemoglobin with high O2 affinity (h-LEH, P50 O2  = 10 mm Hg) has been reported to accelerate skin wound healing in normal mice, it was tested in dB/dB mice with retarded wound healing, as seen in human diabetics. Two full-thickness dorsal wounds 6 mm in diameter encompassed by silicone stents were created in dB/dB mice. Two days later (day 2), the animals were randomly assigned to receive intravenous h-LEH (2 mL/kg, n = 7) or saline (2 mL/kg, n = 7). The same treatment was repeated 4 days after wounding (day 4), and the size of the skin lesions was analyzed by photography, surface perfusion was detected by Laser-Doppler imager, and plasma cytokines and chemokines were determined on days 0, 2, 4, and 7, when all animals were euthanized for morphological studies...
March 21, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28326183/signet-ring-cells-in-the-skin-a-case-of-late-onset-cutaneous-metastasis-of-gastric-carcinoma-and-a-brief-review-of-histological-approach
#12
Özgür Gündüz, Mehmet Can Emeksiz, Pinar Atasoy, Mehtap Kidir, Selim Yalçin, Serkan Demirkan
Up to 10% of patients with visceral malignancies develop skin metastases during their clinical course and these metastases constitute about 2% of all skin cancers. Skin metastasis may be the first sign of a clinically silent visceral cancer or represent recurrence of an internal malignancy. In both situations, they are associated with poor prognosis, which can partly be attributed to underdiagnosis. In this paper, a case of relapsing gastric adenocarcinoma, which manifested itself as asymptomatic cutaneous papules and nodules on a patient's head and neck, is reported and histopathological approach to the cutaneous lesions containing signet-ring cell is briefly reviewed...
June 15, 2016: Dermatology Reports
https://www.readbyqxmd.com/read/28325446/segmentation-of-elastic-fibres-in-images-of-vessel-wall-sections-stained-with-weigert-s-resorcin-fuchsin
#13
Pablo Hernández-Morera, Carlos M Travieso-González, Irene Castaño-González, Blanca Mompeó-Corredera, Francisco Ortega-Santana
BACKGROUND AND OBJECTIVE: The elastic fibres are an essential component of the extracellular matrix in blood vessel walls that allows a long-range of deformability and passive recoil without energy input. The quantitative determination of elastic fibres will provide information on the state of the vascular wall and to determine the role and behaviour of this key structural element in different physiological and pathological vascular processes. METHODS: We present a segmentation method to identify and quantify elastic fibres based on a local threshold technique and some morphological characteristics measured on the segmented objects that facilitate the discrimination between elastic fibres and other image components...
April 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28323657/histology-and-gadolinium-distribution-in-the-rodent-brain-after-the-administration-of-cumulative-high-doses-of-linear-and-macrocyclic-gadolinium-based-contrast-agents
#14
Jessica Lohrke, Anna-Lena Frisk, Thomas Frenzel, Laura Schöckel, Martin Rosenbruch, Gregor Jost, Diana Constanze Lenhard, Martin A Sieber, Volker Nischwitz, Astrid Küppers, Hubertus Pietsch
OBJECTIVES: Retrospective studies in patients with primary brain tumors or other central nervous system pathologies as well as postmortem studies have suggested that gadolinium (Gd) deposition occurs in the dentate nucleus (DN) and globus pallidus (GP) after multiple administrations of primarily linear Gd-based contrast agents (GBCAs). However, this deposition has not been associated with any adverse effects or histopathological alterations. The aim of this preclinical study was to systematically examine differences between linear and macrocyclic GBCAs in their potential to induce changes in brain and skin histology including Gd distribution in high spatial resolution...
March 20, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28322977/assessment-of-penetration-potential-of-ph-responsive-double-walled-biodegradable-nanogels-coated-with-eucalyptus-oil-for-the-controlled-delivery-of-5-fluorouracil-in-vitro-and-ex-vivo-studies
#15
Prashant Sahu, Sushil K Kashaw, Sanyog Jain, Samaresh Sau, Arun K Iyer
Penetration enhancers coated biodegradable polymeric nanogels loaded with cytotoxic drugs applied via the topical route, can be a promising strategy for improving the chemotherapeutic efficiency of skin cancers. The major objective of proposed research was to investigate the in vitro and ex vivo chemotherapeutic potential of double walled PLGA-chitosan biodegradable nanogel entrapped with 5-fluororuacil (5-FU) coated with eucalyptus oil, topically applied onto the skin. 5-FU was first entrapped in PLGA core by solvent evaporation technique followed by coating with cationic chitosan for ionic interaction with anionic skin cancer cell membrane...
March 17, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28322697/molecular-identification-of-spirometra-erinaceieuropaei-tapeworm-in-cases-of-human-sparganosis-hong-kong
#16
Tommy H C Tang, Samson S Y Wong, Christopher K C Lai, Rosana W S Poon, Helen S Y Chan, Tak Chiu Wu, Yuk-Fai Cheung, Tak-Lap Poon, Yi-Po Tsang, Wai-Lun Tang, Alan K L Wu
Human sparganosis is a foodborne zoonosis endemic in Asia. We report a series of 9 histologically confirmed human sparganosis cases in Hong Kong, China. All parasites were retrospectively identified as Spirometra erinaceieuropaei. Skin and soft tissue swelling was the most common symptom, followed by central nervous system lesions.
April 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28321647/photobiomodulation-of-wound-healing-via-visible-and-infrared-laser-irradiation
#17
Hakan Solmaz, Yekta Ulgen, Murat Gulsoy
Fibroblast cells are known to be one of the key elements in wound healing process, which has been under the scope of research for decades. However, the exact mechanism of photobiomodulation on wound healing is not fully understood yet. Photobiomodulation of 635 and 809 nm laser irradiation at two different energy densities were investigated with two independent experiments; first, in vitro cell proliferation and then in vivo wound healing. L929 mouse fibroblast cell suspensions were exposed with 635 and 809 nm laser irradiations of 1 and 3 J/cm(2) energy densities at 50 mW output power separately for the investigation of photobiomodulation in vitro...
March 20, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28321381/skull-base-invasion-patterns-and-survival-outcomes-of-nonmelanoma-skin-cancers
#18
Yusuf Dundar, Richard B Cannon, Marcus M Monroe, Luke Oliver Buchmann, Jason Patrick Hunt
Objective Report routes of skull base invasion for head and neck nonmelanoma skin cancers (NMSCs) and their survival outcomes. Design Retrospective. Participants Ninety patients with NMSC with skull base invasion between 2004 and 2014. Major Outcome Measures Demographic, tumor characteristics, and treatments associated with different types of skull base invasion and disease-specific survival (DSS) and overall survival (OS). Results Perineural invasion (PNI) to the skull base occurred in 69% of patients, whereas 38% had direct skull base invasion...
April 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28319529/the-notch-signaling-system-is-involved-in-the-regulation-of-reparative-angiogenesis-in-the-zone-of-stasis
#19
Ozan Luay Abbas, Orhan Özatik, Yunus Kasm Terzi, Fikriye Yasemin Özatik, Rukiye Nar, Gamze Turna
The Notch pathway ligand Delta-like 4 (Dll4) functions as an antiangiogenic factor, inhibiting vascular endothelial growth factor (VEGF)-induced angiogenesis. This function is documented in tumor and embryonic vasculature. However, its implication in burn wounds remains unexplored. Our objective was to explore the involvement of the Notch in the healing of zone of stasis burns. We hypothesized that anti-Dll4 therapy would prevent progressive necrosis in the stasis zone by promoting angiogenesis. Burns were created in 21 rats using the comb burn model...
March 13, 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28319261/comparative-measurement-of-collagen-bundle-orientation-by-fourier-analysis-and-semiquantitative-evaluation-reliability-and-agreement-in-masson-s-trichrome-picrosirius-red-and-confocal-microscopy-techniques
#20
V Marcos-Garcés, M Harvat, P Molina Aguilar, A Ferrández Izquierdo, A Ruiz-Saurí
Measurement of collagen bundle orientation in histopathological samples is a widely used and useful technique in many research and clinical scenarios. Fourier analysis is the preferred method for performing this measurement, but the most appropriate staining and microscopy technique remains unclear. Some authors advocate the use of Haematoxylin-Eosin (H&E) and confocal microscopy, but there are no studies comparing this technique with other classical collagen stainings. In our study, 46 human skin samples were collected, processed for histological analysis and stained with Masson's trichrome, Picrosirius red and H&E...
March 20, 2017: Journal of Microscopy
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