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https://www.readbyqxmd.com/read/29036928/plasma-mir-155-mir-203-and-mir-205-are-biomarkers-for-monitoring-of-primary-cutaneous-t-cell-lymphomas
#1
Nina Dusílková, Petra Bašová, Jindřich Polívka, Ondřej Kodet, Vojtěch Kulvait, Michal Pešta, Marek Trněný, Tomáš Stopka
Primary cutaneous T-cell lymphomas (CTCL) affect the skin and tend to transform and spread. CTCL involves primarily the Mycosis fungoides (MF) and more aggressive Sezary syndrome (SS). Oncogenic microRNAs (miRs) are stable epigenetic inhibitors often deregulated in the tumour and detectable as biomarkers in non-cellular fractions of peripheral blood. The tumour-specific expression of miR-155, miR-203, and miR-205 was shown to correctly diagnose CTCL. We herein asked whether these microRNAs can be used as plasma biomarkers for clinical CTCL monitoring...
October 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29033821/certolizumab-pegol-induced-folliculitis-like-lichenoid-sarcoidosis-in-a-patient-with-rheumatoid-arthritis
#2
Hiroyuki Sakai, Wakana Nomura, Motoshi Sugawara
Anti-tumor necrosis factor α (TNF-α) biologic agents are used for treating refractory sarcoidosis. However, sarcoidosis-like epithelioid cell granulomas may develop during anti-TNF-α treatment. A 63-year-old man suffering from rheumatoid arthritis was treated with oral methotrexate and methylprednisolone for 4 years. He subsequently started biweekly subcutaneous injections of certolizumab pegol. Three months later, light red follicular papules developed on his chest and they spread over the trunk and bilateral upper arms...
September 2017: Case Reports in Dermatology
https://www.readbyqxmd.com/read/29033813/recurrence-of-melanoma-after-starting-apremilast-for-psoriasis
#3
Thomas G Salopek
This is a report on a 32-year-old man with a history of two previous melanomas with concurrent plaque-type psoriasis. His history dates to 2009, when he was diagnosed with his first melanoma on the right occiput, Clark's level IV, tumor thickness 1.53 mm, nonulcerated, mitotic index 1/mm(2). He subsequently developed nodal recurrence after an initial negative sentinel lymph node biopsy and was treated with complete lymph node dissection. In 2012, he was diagnosed with a second primary melanoma on the right upper chest, Clark's level IV, tumor thickness 0...
May 2017: Case Reports in Dermatology
https://www.readbyqxmd.com/read/29033353/melanocyte-stem-cell-activation-and-translocation-initiate-cutaneous-melanoma-in-response-to-uv-exposure
#4
Hyeongsun Moon, Leanne R Donahue, Eunju Choi, Philip O Scumpia, William E Lowry, Jennifer K Grenier, Jerry Zhu, Andrew C White
Melanoma is one of the deadliest cancers, yet the cells of origin and mechanisms of tumor initiation remain unclear. The majority of melanomas emerge from clear skin without a precursor lesion, but it is unknown whether these melanomas can arise from melanocyte stem cells (MCSCs). Here we employ mouse models to define the role of MCSCs as melanoma cells of origin, demonstrate that MCSC quiescence acts as a tumor suppressor, and identify the extrinsic environmental and molecular factors required for the critical early steps of melanoma initiation...
October 4, 2017: Cell Stem Cell
https://www.readbyqxmd.com/read/29033351/mouse-cutaneous-melanoma-induced-by-mutant-braf-arises-from-expansion-and-dedifferentiation-of-mature-pigmented-melanocytes
#5
Corinna Köhler, David Nittner, Florian Rambow, Enrico Radaelli, Fabio Stanchi, Niels Vandamme, Arianna Baggiolini, Lukas Sommer, Geert Berx, Joost J van den Oord, Holger Gerhardt, Cedric Blanpain, Jean-Christophe Marine
To identify the cells at the origin of melanoma, we combined single-cell lineage-tracing and transcriptomics approaches with time-lapse imaging. A mouse model that recapitulates key histopathological features of human melanomagenesis was created by inducing a BRafV600E-driven melanomagenic program in tail interfollicular melanocytes. Most targeted mature, melanin-producing melanocytes expanded clonally within the epidermis before losing their differentiated features through transcriptional reprogramming and eventually invading the dermis...
October 4, 2017: Cell Stem Cell
https://www.readbyqxmd.com/read/29032440/vasculitis-and-vasculitis-like-manifestations-in-monogenic-autoinflammatory-syndromes
#6
REVIEW
Avinash Jain, Durga Prasanna Misra, Aman Sharma, Anupam Wakhlu, Vikas Agarwal, Vir Singh Negi
Monogenic autoinflammatory syndromes are a rare group of disorders characterized by periodic episodes of systemic inflammation of endogenous origin. Sometimes, these diseases may present with features akin to vasculitis. We conducted a literature review on such vasculitic manifestations in described monogenic autoinflammatory syndromes utilizing the Online Mendelian Inheritance in Man (OMIM), Medline, and Scopus databases. Our search identified that Familial Mediterranean fever (FMF) can manifest with features of either small, medium, large, or variable-vessel vasculitis...
October 14, 2017: Rheumatology International
https://www.readbyqxmd.com/read/29028127/pure-mucinous-colloid-adenocarcinoma-of-the-conjunctiva
#7
Valentina Logunova, Olayemi Sokumbi
Mucinous carcinomas of the periorbital area are very rare malignant tumors and can be primary or secondary to metastasis. Primary mucinous carcinomas of the eyelid include, most commonly, primary cutaneous mucinous carcinoma with endocrine mucin-producing sweat gland carcinoma being a remote second.[1,2,3,4] To our knowledge, primary mucinous carcinomas of conjunctiva or lacrimal gland elements have not been described in the literature.[5,6] Metastatic carcinoma from visceral sites should also be considered in the differential diagnosis...
October 13, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29027689/oral-mucosa-model-for-electrochemotherapy-treatment-of-dog-mouth-cancer-ex-vivo-in-silico-and-in-vivo-experiments
#8
Daniela O H Suzuki, José A Berkenbrock, Marisa J S Frederico, Fátima R M B Silva, Marcelo M M Rangel
Electrochemotherapy (EQT) is a local cancer treatment well established to cutaneous and subcutaneous tumors. Electric fields are applied to biological tissue in order to improve membrane permeability for cytotoxic drugs. This phenomenon is called electroporation or electropermeabilization. Studies have reported that tissue conductivity is electric field dependent. Electroporation numerical models of biological tissues are essential in treatment planning. Tumors of the mouth are very common in dogs. Inadequate EQT treatment of oral tumor may be caused by significant anatomic variations between dogs and tumor position...
October 13, 2017: Artificial Organs
https://www.readbyqxmd.com/read/29023827/tnf%C3%AE-and-il-17a-are-differentially-expressed-in-psoriasis-like-vs-eczema-like-drug-reactions-to-tnf%C3%AE-antagonists
#9
C Deubelbeiss, A G A Kolios, L E French, N Yawalkar, W Kempf, K Kerl, B Meier, F Anzengruber, A A Navarini
BACKGROUND: Tumor necrosis factor α (TNFα) blocking drugs are in use for a wide range of autoimmune disorders. In up to 5% of patients, this class of drugs produces puzzling cutaneous side effects that are the subject of this investigation, namely psoriasiform and eczema-like skin inflammation. These side effects can occur after any time of treatment and regardless of the underlying disorders. The exact pathophysiology is as yet unknown. METHODS: 33 patients (19 female, average age 52 years) who had a cutaneous reaction to infliximab, adalimumab or etanercept were included...
October 10, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29018908/characterization-of-arthralgia-induced-by-pd-1-antibody-treatment-in-patients-with-metastasized-cutaneous-malignancies
#10
Kristina Buder-Bakhaya, Karolina Benesova, Carsten Schulz, Hoda Anwar, Antonia Dimitrakopoulou-Strauss, Tim F Weber, Alexander Enk, Hanns-Martin Lorenz, Jessica C Hassel
BACKGROUND: PD-1 antibodies (PD1ab) are increasingly used in metastatic melanoma and other malignancies. Arthralgia is an underestimated side effect of PD-1 antibody treatment with unknown cause. Our aim was to characterize PD1ab-induced arthralgia. PATIENTS AND METHODS: We retrospectively included patients with metastatic cutaneous malignancies treated with pembrolizumab or nivolumab ± ipilimumab at the National Center for Tumor Diseases (Heidelberg) between 01/2013 and 09/2016...
October 10, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28989146/epicutaneous-sensitization-with-ovalbumin-staphylococcal-enterotoxin-b-and-vitamin-d-analogue-induces-%C3%A2-atopic-dermatitis-in-mice
#11
Lina Tan, Jianyun Lu, Meilin Chen, Yaping Xiang, Qingmei Cheng, Yunsheng Liang, Jinhua Huang, Jian Huang, Jing Chen, Lihua Gao
To illuminate a method for establishment of a cost-efficient atopic dermatitis (AD) mouse model by topical application of ovalbumin (OVA), super-antigen staphylococcal enterotoxin B (SEB), and calcipotriene ointment (CO) on the back of BALB/c mice.
 Methods: Experimental mice were topically treated with OVA/SEB or OVA/SEB/CO every other day during 15 days of induction. Clinical alterations on the skin area were monitored every other day. Epidermal thickness were measured by reflectance confocal microscope (RCM) before harvest...
September 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28989104/epidemiology-of-malignant-cutaneous-granular-cell-tumors-a-united-states-population-based-cohort-analysis-using-the-surveillance-epidemiology-and-end-results-seer-database
#12
Fatima N Mirza, Charles T Tuggle, Cheryl K Zogg, Humza N Mirza, Deepak Narayan
BACKGROUND: Malignant cutaneous granular cell tumors (mcGCT) are rare and associated with substantial morbidity and mortality. The literature includes single-institution studies. OBJECTIVE: To examine the incidence, secondary malignancies, treatment, overall survival (OS), and disease-specific survival (DSS) of patients with mcGCT. METHODS: A population-based cohort analysis was conducted in the Surveillance, Epidemiology, and End Results (SEER) database, 1973-2013, for patients diagnosed with mcGCT...
October 5, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28988380/tumor-infiltrating-immune-cells-as-potential-biomarkers-predicting-response-to-treatment-and-survival-in-patients-with-metastatic-melanoma-receiving-ipilimumab-therapy
#13
Tímea Balatoni, Anita Mohos, Eszter Papp, Tímea Sebestyén, Gabriella Liszkay, Judit Oláh, Anita Varga, Zsuzsanna Lengyel, Gabriella Emri, István Gaudi, Andrea Ladányi
Monoclonal antibodies targeting immune checkpoints are gaining ground in the treatment of melanoma and other cancers, and considerable effort is made to identify biomarkers predicting the efficacy of these therapies. Our retrospective study was performed on surgical tissue samples (52 lymph nodes and 34 cutaneous/subcutaneous metastases) from 30 patients with metastatic melanoma treated with ipilimumab. Using a panel of 11 antibodies against different immune cell types, intratumoral immune cell densities were determined and evaluated in relation to response to ipilimumab treatment and disease outcome...
October 7, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28986312/bilateral-upper-and-lower-eyelid-margin-swelling-and-madarosis-due-to-lymphoma
#14
Huy V Nguyen, Frederick A Jakobiec, Fouad R Zakka, Michael K Yoon
Over a 2 year period a 32-year-old woman developed swellings of all 4 eyelid margins accompanied by complete loss of eyelashes. An inflammatory dermatologic condition was considered the most likely cause. A full thickness right lower eyelid biopsy revealed a multinodular lymphoid tumor at the eyelid margin which immunophenotypically and genetically was diagnosed as an extranodal marginal zone lymphoma. The mode of presentation of the disease was considered to be most unusual, as was its B cell lineage, since the majority of primary cutaneous lymphomas are of T-cell origin...
October 3, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28984765/cutaneous-sarcoidosis-a-retrospective-case-series-and-a-hospital-based-case-control-study-in-taiwan
#15
Kwei-Lan Liu, Wen-Chien Tsai, Chih-Hung Lee
Sarcoidosis is a systemic granulomatous disorder of unknown etiology often involving skin. Studies on cutaneous sarcoidosis and comorbidities are limited. This study is aimed to describe the clinical features of cutaneous sarcoidosis diagnosed in our hospital and to determine the relationships between cutaneous sarcoidosis and comorbidities.This retrospective study evaluates patients with cutaneous sarcoidosis in a tertiary center in Taiwan from 1996 to 2015. The records of 38 patients with cutaneous sarcoidosis were reviewed for clinical characteristics and evaluated by analysis of variance...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28984696/heterotopic-cutaneous-meningioma-an-unusual-presentation-occurring-in-a-patient-with-a-remote-history-of-intracranial-meningioma
#16
Chibuike Enwereuzo, Luis Moral, Jean M Henneberry
Meningioma is a neoplasm of the meninges, which usually occurs in intracranial sites. Extracranial meningioma has been frequently reported in the sinonasal tract and skull bone, often as extension of intracranial meningiomas. Isolated heterotopic meningioma without contiguous intracranial lesion is extremely rare. A 56-year-old woman presented in December 2015 with 2 firm subcutaneous scalp masses; one in the left lateral (temporal) and the other in the left superior (parietal) region. The clinical impression was that of lipoma...
September 28, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28984695/primary-cutaneous-cd8-t-cell-lymphoma-an-indolent-and-locally-aggressive-form-mimicking-paronychia
#17
Sarah M Beggs, Ben J Friedman, Davida Kornreich, Lauren Okon, Onder Alpdogan, Wenyin Shi, Joya Sahu
CD8 T-cell lymphomas comprise a wide spectrum of lymphomas, many which have yet to be formally classified. We present a case of a 43-year-old woman with an enlarging tumor distal to the distal interphalangeal joint of the fourth finger, compressing the underlying nail matrix. Magnetic resonance imaging showed bony involvement of the underlying distal phalanx. Histology showed a dense epidermotropic and pandermal infiltrate composed of medium-sized, uniformly pleomorphic lymphocytes with cleaved nuclei, which raised the possibility of primary cutaneous CD8 aggressive epidermotropic cytotoxic T-cell lymphoma...
September 28, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28981153/pleomorphic-fibroma-of-the-skin-with-mdm2-immunoreactivity-a-potential-diagnostic-pitfall
#18
Mehrnoosh Tashakori, Jason Pimentel, Brooke E Howitt, Jessica Sanchez, Susan Michalowski, Dhananjay Chitale, Adrian H Ormsby, Sean R Williamson
Pleomorphic fibroma is a rare benign cutaneous neoplasm characterized by spindle-shaped cells and multinucleated giant cells scattered throughout collagenous stroma. These morphologic features can lead to diagnostic confusion, including atypical lipomatous tumor as one consideration. In contrast to atypical lipomatous tumor, previous studies have found pleomorphic fibroma to be negative for MDM2 immunohistochemical staining and MDM2 gene amplification. Here, we present a case of pleomorphic fibroma of skin with nuclear MDM2 immunoreactivity in the absence of MDM2 gene amplification, underscoring the superiority of fluorescence in situ hybridization as a diagnostic test in this differential diagnosis...
October 5, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28980225/merkel-cell-carcinoma-of-the-buccal-mucosa-and-lower-lip
#19
Mohammed N Islam, Hardeep Chehal, Molly Housley Smith, Sarah Islam, Indraneel Bhattacharyya
Merkel cell carcinoma (MCC) is an uncommon relatively aggressive neuroendocrine dermal neoplasm first described in 1972 as a tumor of the sun exposed skin. Although most MCC affect the skin of the head and neck, rare primarily oral mucosal cases have been documented. Merkel cells are nondendritic neuroendocrine cells that are found not only in the skin but also the oral mucosa and give rise to MCC. Neuroendocrine cells may be found as aggregates in organs or as diffuse or isolated cells within organs and their epithelial lining...
October 4, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28979620/-lisch-nodule-in-neurofibromatosis-type-1
#20
Yassine Abaloun, Yousra Ajhoun
Neurofibromatosis type 1 (NF1) or Von Recklinghausen disease manifests as cutaneous café-au-lait spots and neurofibromas. It is one of the most common autosomal dominant genetic diseases. It is extremely variable in its individual manifestation. Cutaneous and neurologic symptoms are the most common manifestations but it can also affect other organs including eyes, bones and other areas. Lisch nodules are the most common ocular manifestations in NF-1. They are asymptomatic small pigmented iris tumors (iris hamartomas) which can help suggest the diagnosis of NF1 as they are characteristic of this disease and mostly occur in adult patients...
2017: Pan African Medical Journal
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