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Skin biopsy

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https://www.readbyqxmd.com/read/29352630/surgical-damage-to-the-lymphatic-system-promotes-tumor-growth-via-impaired-adaptive-immune-response
#1
Yoshiyuki Nakamura, Yasuhiro Fujisawa, Naoko Okiyama, Rei Watanabe, Ryota Tanaka, Yosuke Ishitsuka, Hideaki Tahara, Manabu Fujimoto
BACKGROUND: Both lymph nodes (LNs) and lymphatic channels from primary sites to regional LNs are critical for initiation of adaptive immunity. However, as LNs are common metastatic sites in skin cancers, LN biopsies or dissections are frequently performed. In addition, reconstructive skin flaps after tumor resection may damage lymphatic flow from primary sites to regional LNs. OBJECTIVE: This study was designed to investigate the effect on tumor progression by such surgeries...
December 29, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/29352500/characterization-of-skin-blister-fluids-from-children-with-epstein-barr-virus-associated-lymphoproliferative-disease
#2
Taizo Wada, Tomoko Toma, Hanae Miyazawa, Eiko Koizumi, Tetsujiro Shirahashi, Yusuke Matsuda, Akihiro Yachie
Epstein-Barr virus (EBV)-associated T- or natural killer (NK)-cell lymphoproliferative disease (LPD) is a heterogeneous group of disorders characterized by chronic proliferation of EBV-infected lymphocytes. Patients may present with severe skin manifestations, including hypersensitivity to mosquito bites (HMB) and hydroa vacciniforme (HV)-like eruption, which are characterized by blister formation and necrotic ulceration. Skin biopsy specimens show inflammatory reactions comprising EBV-infected lymphocytes...
January 20, 2018: Journal of Dermatology
https://www.readbyqxmd.com/read/29349515/matrix-metalloproteinase-2-and-9-activity-levels-increase-in-cutaneous-lupus-erythematosus-lesions-and-correlate-with-disease-severity
#3
Goksen Ertugrul, Didem Keles, Gulgun Oktay, Sebnem Aktan
Lupus erythematosus is a chronic autoimmune disease characterized by remissions and exacerbations. Accumulated evidence indicated that matrix metalloproteinases (MMPs) are upregulated in inflammatory cells of cutaneous lupus erythematosus (CLE); however, the activity levels of these proteases have remained uncharacterized. To elucidate the significance of MMP-2, MMP-9, and TIMP-1 in CLE pathogenesis, gelatin zymography was used to investigate pro and active levels of MMP-2 and MMP-9 in lesional and perilesional skin biopsies obtained from twenty-two CLE patients...
January 18, 2018: Archives of Dermatological Research
https://www.readbyqxmd.com/read/29348411/in-vivo-microscopic-photoacoustic-spectroscopy-for-non-invasive-glucose-monitoring-invulnerable-to-skin-secretion-products
#4
Joo Yong Sim, Chang-Geun Ahn, Eun-Ju Jeong, Bong Kyu Kim
Photoacoustic spectroscopy has been shown to be a promising tool for non-invasive blood glucose monitoring. However, the repeatability of such a method is susceptible to changes in skin condition, which is dependent on hand washing and drying due to the high absorption of infrared excitation light to the skin secretion products or water. In this paper, we present a method to meet the challenges of mid-infrared photoacoustic spectroscopy for non-invasive glucose monitoring. By obtaining the microscopic spatial information of skin during the spectroscopy measurement, the skin region where the infrared spectra is insensitive to skin condition can be locally selected, which enables reliable prediction of the blood glucose level from the photoacoustic spectroscopy signals...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29346014/role-of-the-lymphatic-system-in-the-pathogenesis-of-hypertension-in-humans
#5
Angelika Chachaj, Bartosz Puła, Mariusz Chabowski, Jędrzej Grzegrzółka, Ewa Szahidewicz-Krupska, Maciej Karczewski, Dariusz Janczak, Piotr Dzięgiel, Marzenna Podhorska-Okołów, Grzegorz Mazur, Andrzej Gamian, Andrzej Szuba
BACKGROUND: Recent studies, mainly on animal models, have suggested that negatively charged glycosaminoglycans, macrophages, and lymph vessels in the skin interstitium may serve as extrarenal control of sodium balance and blood pressure. The aim of the study was to prove the hypothesis that skin interstitium has a role in the pathogenesis of hypertension in humans. METHODS AND RESULTS: We have examined skin biopsies in 91 patients from the department of surgery who had elective surgery with abdominal skin incision: 43 were hypertensive, 14 had resistant hypertension, and 34 with normal blood pressure as control group (median patients' age in these groups estimated accordingly 64 vs...
January 18, 2018: Lymphatic Research and Biology
https://www.readbyqxmd.com/read/29345220/tissue-impression-smears-as-a-supplementary-diagnostic-method-for-histopathology-in-cutaneous-leishmaniasis-in-sri-lanka
#6
Nuwani H Manamperi, M Vipula C de Silva, Nishantha Pathirana, Wimal Abeyewickreme, Nadira D Karunaweera
Cutaneous leishmaniasis (CL) is diagnosed mainly by light microscopy of smears made using lesion material. Histopathology is usually done in atypical presentations or when lesion smears are negative. Tissue impression smears (TIS) made from skin biopsy specimens were compared with histopathology for the diagnosis of CL. Out of the 111 patients included, 83 (74.8%) were positive by either methods. The TIS was positive in 70.3% whereas histopathology was positive in 56.8% of patients. Tissue impression smears can be used as a supplementary diagnostic test that gives sensitive and rapid results when tissue biopsies are used as the source of lesion material for diagnosis of CL...
January 15, 2018: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29344820/metastases-from-distant-primary-tumours-on-the-head-and-neck-clinical-manifestation-and-diagnostics-of-91-cases
#7
Sven Holger Baum, Christopher Mohr
PURPOSE: The aim of this study was to evaluate which primary tumours metastasize on the head and neck region, identify the kind of clinical manifestation, the types of diagnostics that should be performed, and prove that the therapy appears possible and useful. PATIENTS: As many as 91 patients with a distant metastasis on the head and neck were enrolled in this retrospective clinical study from January 2004 to September 2016. All the patients were evaluated for clinical symptoms, primary tumour, localization, diagnostics, and surgical procedure...
January 17, 2018: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29344487/enlarging-pigmented-eyelid-mass-associated-with-remote-pencil-trauma
#8
Paul O Phelps, J Andrew Carlson, Dale R Meyer
The authors present a case of a gradually enlarging pigmented mass of the upper eyelid and anterior orbit that was discovered to be the graphite tip of a pencil surrounded by macrophages bearing graphite and fibrous tissue. A 25-year-old woman with no medical history presented with a gradually enlarging pigmented lesion of her left upper eyelid. She denied any history of previous skin cancer, trauma, or previous surgery. A biopsy was performed. This revealed an encapsulated grayish, pigmented mass within the medial portion of the left upper eyelid and anterior orbit...
November 2017: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/29344323/the-impact-of-quantitative-data-provided-by-a-multi-spectral-digital-skin-lesion-analysis-device-on-dermatologists-decisions-to-biopsy-pigmented-lesions
#9
Aaron S Farberg, Richard R Winkelmann, Natalie Tucker, Richard White, Darrell S Rigel
BACKGROUND: Early diagnosis of melanoma is critical to survival. New technologies, such as a multi-spectral digital skin lesion analysis (MSDSLA) device [MelaFind, STRATA Skin Sciences, Horsham, Pennsylvania] may be useful to enhance clinician evaluation of concerning pigmented skin lesions. Previous studies evaluated the effect of only the binary output. OBJECTIVE: The objective of this study was to determine how decisions dermatologists make regarding pigmented lesion biopsies are impacted by providing both the underlying classifier score (CS) and associated probability risk provided by multi-spectral digital skin lesion analysis...
September 2017: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/29344029/primary-adrenal-lymphoma-presenting-with-adrenal-failure-a-case-report-and-review-of-the-literature
#10
Fariba Karimi
Introduction: Primary adrenal lymphoma is rare, with a few cases reported in the literature. Most often it manifests as bilateral adrenal lesions and adrenal insufficiency is a common complication. Case Presentation: A 53-year-old male was referred with abdominal discomfort and darkening of the skin since 1 month prior to admission. His workups detected large bilateral adrenal masses. The patient was admitted due to hypotension, and was diagnosed with adrenal insufficiency...
October 2017: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29342313/collagen-xii-myopathy-with-rectus-femoris-atrophy-and-collagen-xii-retention-in-fibroblasts
#11
Nanna Witting, Thomas Krag, Ulla Werlauff, Morten Duno, Sofie Thuroe Oestergaard, Julia Rebecka Dahlqvist, John Vissing
INTRODUCTION: Mutation in the collagen XII gene (COL12A1) was recently reported to induce Bethlem myopathy. We describe a family affected by collagen XII-related myopathy in 3 generations. METHODS: Systematic interview, clinical examination, skin biopsies and MRI muscle. RESULTS: The phenotype was characterized by neonatal hypotonia, contractures and delayed motor development followed by resolution of contractures and a motor performance limited by reduced endurance...
January 17, 2018: Muscle & Nerve
https://www.readbyqxmd.com/read/29342155/nanoscopic-x-ray-fluorescence-imaging-and-quantification-of-intracellular-key-elements-in-cryofrozen-friedreich-s-ataxia-fibroblasts
#12
Björn De Samber, Eline Meul, Brecht Laforce, Boel De Paepe, Joél Smet, Michiel De Bruyne, Riet De Rycke, Sylvain Bohic, Peter Cloetens, Rudy Van Coster, Peter Vandenabeele, Tom Vanden Berghe
Synchrotron radiation based nanoscopic X-ray fluorescence (SR nano-XRF) analysis can visualize trace level elemental distribution in a fully quantitative manner within single cells. However, in-air XRF analysis requires chemical fixation modifying the cell's chemical composition. Here, we describe first nanoscopic XRF analysis upon cryogenically frozen (-150°C) fibroblasts at the ID16A-NI 'Nano-imaging' end-station located at the European Synchrotron Radiation Facility (ESRF) in Grenoble (France). Fibroblast cells were obtained from skin biopsies from control and Friedreich's ataxia (FRDA) patients...
2018: PloS One
https://www.readbyqxmd.com/read/29341355/reflectance-confocal-microscopy-and-optical-coherence-tomography-for-the-diagnosis-of-bullous-pemphigoid-and-pemphigus-and-surrounding-sub-clinical-lesions
#13
V D Mandel, E Cinotti, E Benati, B Labeille, S Ciardo, C Vaschieri, F Cambazard, J L Perrot, G Pellacani
BACKGROUND: Diagnosis of bullous pemphigoid (BP) and pemphigus is based on clinical features, histology, immunofluorescence and laboratory data. OBJECTIVES: To evaluate features of BP and pemphigus at reflectance confocal microscopy (RCM) and optical coherence tomography (OCT) in order to provide a rapid non-invasive bed-side diagnosis. Secondary objective was to evaluate the detectability of clinically non-visible lesions. METHODS: This was an observational, retrospective, multicentre study in which patients with suspicious lesions for BP or pemphigus underwent clinical assessment, RCM, OCT, blood tests and skin biopsy for histological and direct immunofluorescence examinations from January 2014 to December 2015...
January 16, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29341259/child-syndrome-mimicking-verrucous-nevus-in-a-chinese-patient-responded-well-to-the-topical-therapy-of-compound-of-simvastatin-and-cholesterol
#14
Xia Yu, Jia Zhang, Yan Gu, Dan Deng, Zhouwei Wu, Lei Bao, Ming Li, Zhirong Yao
BACKGROUND: Congenital hemidysplasia with ichthyosiform erythroderma and limb defects (CHILD) syndrome is a rare X-linked dominant disorder characterized by peculiar cutaneous presentations and ipsilateral skeletal abnormalities. CHILD syndrome is caused by mutations in NSDHL gene, which involves in cholesterol synthesis. OBJECTIVES: To verify the diagnosis of CHILD syndrome and seek effective pathogenesis-based therapy with little side effects. METHOD: We comprehensively evaluated the patient's conditions...
January 17, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29340950/dermatologic-lesions-submitted-to-an-oral-and-maxillofacial-pathology-biopsy-service-an-analysis-of-2487-cases
#15
Rekha Reddy, Liya Davidova, Indraneel Bhattacharyya, Donald M Cohen, Mohammed N Islam, Sarah G Fitzpatrick
Skin lesions are often submitted to oral and maxillofacial pathology practices. The purpose of this study is to evaluate the frequency, distribution, variability, and composition of dermatologic lesions within a large oral and maxillofacial pathology biopsy service. An IRB-approved retrospective search of skin lesions diagnosed at University of Florida oral and maxillofacial pathology biopsy service between 1994 and 2015 was performed. 2487 cases were included in the study. Gender was reported in 2466 cases, of which 59% were male and 41% female...
January 16, 2018: Head and Neck Pathology
https://www.readbyqxmd.com/read/29338706/miliary-tuberculosis-with-co-existing-pulmonary-cryptococcosis-in-non-hiv-patient-without-underlying-diseases-a-case-report
#16
Toyomitsu Sawai, Takumi Nakao, Satoru Koga, Shotaro Ide, Sumako Yoshioka, Nobuko Matsuo, Hiroshi Mukae
BACKGROUND: Tuberculosis and cryptococcosis co-infection usually occurs in immunosuppressed patients with impaired cell-mediated immunity. However, there are few reports about such co-infection in non-HIV patients without underlying diseases. Here, we report a case of miliary tuberculosis with co-existing pulmonary cryptococcosis in non-HIV patient without underlying diseases. CASE PRESENTATION: An 84-year-old Asian female presented to our hospital with complaints of a 1-week history of abdominal pain and appetite loss...
January 16, 2018: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/29336782/loss-of-gpnmb-causes-autosomal-recessive-amyloidosis-cutis-dyschromica-in-humans
#17
Chi-Fan Yang, Shuan-Pei Lin, Chien-Ping Chiang, Yu-Hung Wu, Weng Siong H'ng, Chun-Ping Chang, Yuan-Tsong Chen, Jer-Yuarn Wu
Amyloidosis cutis dyschromica (ACD) is a distinct form of primary cutaneous amyloidosis characterized by generalized hyperpigmentation mottled with small hypopigmented macules on the trunks and limbs. Affected families and sporadic case subjects have been reported predominantly in East and Southeast Asian ethnicities; however, the genetic cause has not been elucidated. We report here that the compound heterozygosity or homozygosity of GPNMB truncating alleles is the cause of autosomal-recessive ACD. Six nonsense or frameshift mutations were identified in nine individuals diagnosed with ACD...
January 9, 2018: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29336047/acrodermatitis-acidaemica
#18
C A Maguire, H Chong, R Ramachandran, J Popoola, V Akhras, M Singh
Methylmalonic acidaemia (MMA) is an inborn error of amino acid metabolism that may be associated with cutaneous manifestations mimicking other diagnoses, including staphylococcal scalded skin syndrome (SSSS), psoriasis and acrodermatitis enteropathica. Whether this is due to the underlying metabolic disorder itself or occurs as a consequence of dietary restriction has yet to be elucidated. Skin biopsies typically show histological features shared by a number of other metabolic disorders and nutritional deficiency-associated diseases...
January 15, 2018: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/29334134/a-comprehensive-next-generation-sequencing-assay-for-the-diagnosis-of-epidermolysis-bullosa
#19
Anne W Lucky, Neha Dagaonkar, Karen Lammers, Ammar Husami, Diane Kissell, Kejian Zhang
BACKGROUND: Historically, diagnosis of epidermolysis bullosa has required skin biopsies for electron microscopy, direct immunofluorescence to determine which gene(s) to choose for genetic testing, or both. METHODS: To avoid these invasive tests, we developed a high-throughput next-generation sequencing (NGS)-based diagnostic assay called EBSEQ that allows simultaneous detection of mutations in 21 genes with known roles in epidermolysis bullosa pathogenicity. Mutations are confirmed with traditional Sanger sequencing...
January 15, 2018: Pediatric Dermatology
https://www.readbyqxmd.com/read/29334018/pyoderma-gangrenosum-demographics-treatments-and-outcomes-an-analysis-of-2-273-cases
#20
Sarah E Sasor, Tahereh Soleimani, Michael W Chu, Julia A Cook, Peter J Nicksic, Sunil S Tholpady
OBJECTIVE: Pyoderma gangrenosum is a rare, neutrophil-mediated, auto-inflammatory dermatosis. This condition has clinical features analogous to infectious processes and must be quickly diagnosed to be properly treated. The purpose of this study was to characterise relevant clinical features associated with pyoderma gangrenosum based on a large inpatient cohort. METHOD: The National Inpatient Sample (US) was used to identify patients with the diagnosis of pyoderma gangrenosum using ICD-9 diagnosis code 686...
January 1, 2018: Journal of Wound Care
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