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https://www.readbyqxmd.com/read/29439500/skin-lesion-analysis-towards-melanoma-detection-using-deep-learning-network
#1
Yuexiang Li, Linlin Shen
Skin lesions are a severe disease globally. Early detection of melanoma in dermoscopy images significantly increases the survival rate. However, the accurate recognition of melanoma is extremely challenging due to the following reasons: low contrast between lesions and skin, visual similarity between melanoma and non-melanoma lesions, etc. Hence, reliable automatic detection of skin tumors is very useful to increase the accuracy and efficiency of pathologists. In this paper, we proposed two deep learning methods to address three main tasks emerging in the area of skin lesion image processing, i...
February 11, 2018: Sensors
https://www.readbyqxmd.com/read/29384261/the-status-of-dermoscopy-in-germany-results-of-the-cross-sectional-pan-euro-dermoscopy-study
#2
Andreas Blum, Jürgen Kreusch, Wilhelm Stolz, Giuseppe Argenziano, Ana-Maria Forsea, Del Marmol V, Iris Zalaudek, H Peter Soyer, Holger A Haenssle
BACKGROUND: Survey on the current status of dermoscopy in Germany. METHODS: In the context of a pan-European internet-based study (n = 7,480) conducted by the International Dermoscopy Society, 880 German dermatologists were asked to answer questions with respect to their level of training as well as their use and perceived benefit of dermoscopy. RESULTS: Seven hundred and sixty-two (86.6 %) participants practiced dermatology in a publicly funded health care setting; 98...
February 2018: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/29363175/seborrheic-keratoses-mimicking-melanoma-unveiled-by-in-vivo-reflectance-confocal-microscopy
#3
C Pezzini, V D Mandel, F Persechino, S Ciardo, S Kaleci, J Chester, N De Carvalho, S Persechino, G Pellacani, F Farnetani
BACKGROUND: Seborrheic keratoses (SebK) with atypical dermoscopy presentation are increasingly reported. These lesions do not exhibit typical dermoscopy features of SebK and sometimes mimic melanoma, thus complicating the differential diagnosis. Reflectance confocal microscopy (RCM) is a non-invasive tool, which allows an in vivo imaging of the skin. The study objectives were to evaluate the agreement between RCM classification and histological diagnoses, and the reliability of well-known RCM criteria for SebK in the identification of SebK with atypical dermoscopy presentation...
January 24, 2018: Skin Research and Technology
https://www.readbyqxmd.com/read/29355898/in-vivo-dermoscopic-and-confocal-microscopy-multi-step-algorithm-to-detect-in-situ-melanomas
#4
S Borsari, R Pampena, E Benati, C Bombonato, K Athanassios, E Moscarella, A Lallas, G Argenziano, G Pellacani, C Longo
BACKGROUND: Although several dermoscopic features of in situ melanoma (MIS) have been identified, data on confocal features for MIS are still lacking. OBJECTIVES: To identify RCM (reflectance confocal microscopy) features of MIS and to develop a diagnostic score for MIS while combining dermoscopy and RCM. METHODS: 120 MIS and 213 nevi (test set) were retrospectively analysed to assess the presence of dermoscopic and RCM criteria. Facial and acral lesions have been excluded...
January 21, 2018: British Journal of Dermatology
https://www.readbyqxmd.com/read/29341263/dermoscopy-versus-reflectance-confocal-microscopy-for-the-diagnosis-of-lentigo-maligna
#5
E Cinotti, B Labeille, S Debarbieux, C Carrera, F Lacarrubba, A M Witkowski, E Moscarella, E Arzberger, H Kittler, P Bahadoran, S Gonzalez, P Guitera, M Agozzino, F Farnetani, R Hofmann-Wellenhof, M Ardigò, P Rubegni, L Tognetti, J Łudzik, I Zalaudek, G Argenziano, C Longo, S Ribero, J Malvehy, G Pellacani, F Cambazard, J L Perrot
BACKGROUND: Several dermoscopic and in vivo reflectance confocal microscopy (RCM) diagnostic criteria of lentigo maligna (LM)/lentigo maligna melanoma (LMM) have been identified. However, no study compared the diagnostic accuracy of these techniques. OBJECTIVE: We evaluated the diagnostic accuracy of dermoscopy and RCM for LM/LMM using a holistic assessment of the images. METHODS: 223 facial lesions were evaluated by 21 experts. Diagnostic accuracy of the clinical, dermoscopic and RCM examination were compared...
January 17, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29316678/actinic-keratosis-and-non-invasive-diagnostic-techniques-an-update
#6
REVIEW
Alice Casari, Johanna Chester, Giovanni Pellacani
Actinic keratosis represents the earliest manifestation of non-melanoma skin cancer. Because of their risk of progression to invasive squamous cell carcinoma, an earlier diagnosis and treatment are mandatory. Their diagnosis sometimes could represent a challenge even for expert dermatologists. Dermoscopy, confocal laser microscopy and optical coherence tomography could help clinicians in diagnosis.
January 8, 2018: Biomedicines
https://www.readbyqxmd.com/read/29314288/the-limitations-of-dermoscopy-false-positive-and-false-negative-tumors
#7
REVIEW
V Papageorgiou, Z Apalla, E Sotiriou, C Papageorgiou, E Lazaridou, S Vakirlis, D Ioannides, A Lallas
Dermoscopy has been documented to increase the diagnostic accuracy of clinicians evaluating skin tumors, improving their ability to detect skin cancer and better recognize benign moles. However, dermoscopically "false positive" and "false negative" tumors do exist. False positive diagnosis usually leads to unnecessary excisions. False negative diagnosis is much more dangerous, since it might result in overlooking a cancer, with severe undesirable consequences for the patient and the physician. Therefore, management strategies should mainly focus on addressing the risk of dermoscopically false negative tumors...
January 5, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29313900/dermoscopy-of-arteriovenous-tumour-a-morphological-study-of-39-cases
#8
Pedro Zaballos, Carolina Medina, Luis J Del Pozo, Ignacio Gómez-Martín, José Bañuls
BACKGROUND/OBJECTIVES: Arteriovenous tumour is a distinct, benign, acquired vascular lesion that can be misdiagnosed. METHODS: A dermoscopic examination of 39 cases of arteriovenous tumours collected from four Spanish hospitals was performed to evaluate specific dermoscopic criteria and patterns. RESULTS: The most common structures found were vascular, 95% of cases (37/39); 90% (35/39) were non-arborising telangiectasia. All the lesions except two (95%) had a homogeneous pigmentation background that was red in 30 cases (77%), bluish-red in three (8%), brown in two (5%) and blue or multicoloured in one case each...
January 5, 2018: Australasian Journal of Dermatology
https://www.readbyqxmd.com/read/29307636/the-association-between-dermoscopic-features-and-braf-mutational-status-in-cutaneous-melanoma-significance-of-the-blue-white-veil
#9
M Armengot-Carbó, E Nagore, Z García-Casado, R Botella-Estrada
BACKGROUND: The genetic basis of melanoma affects its clinicopathological characteristics and increasingly influences its management. BRAF-mutated melanoma may present with specific dermoscopic features. OBJECTIVES: To identify the dermoscopic features associated with BRAF mutation in cutaneous melanoma and to evaluate a model capable of predicting BRAF mutations based on dermoscopic and clinicopathological features easily accessible in normal clinical practice...
January 4, 2018: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/29305821/a-national-budget-impact-analysis-of-a-specialised-surveillance-programme-for-individuals-at-very-high-risk-of-melanoma-in-australia
#10
Caroline G Watts, Sally Wortley, Sarah Norris, Scott W Menzies, Pascale Guitera, Lisa Askie, Graham J Mann, Rachael L Morton, Anne E Cust
BACKGROUND: Specialised surveillance using total body photography and digital dermoscopy to monitor people at very high risk of developing a second or subsequent melanoma has been reported as cost effective. OBJECTIVES: We aimed to estimate the 5-year healthcare budget impact of providing specialised surveillance for people at very high risk of subsequent melanoma from the perspective of the Australian healthcare system. METHODS: A budget impact model was constructed to assess the costs of monitoring and potential savings compared with current routine care based on identification of patients at the time of a melanoma diagnosis...
January 5, 2018: Applied Health Economics and Health Policy
https://www.readbyqxmd.com/read/29297290/texture-based-skin-lesion-abruptness-quantification-to-detect-malignancy
#11
Recep Erol, Mustafa Bayraktar, Sinan Kockara, Sertan Kaya, Tansel Halic
BACKGROUND: Abruptness of pigment patterns at the periphery of a skin lesion is one of the most important dermoscopic features for detection of malignancy. In current clinical setting, abrupt cutoff of a skin lesion determined by an examination of a dermatologist. This process is subjective, nonquantitative, and error-prone. We present an improved computational model to quantitatively measure abruptness of a skin lesion over our previous method. To achieve this, we quantitatively analyze the texture features of a region within the lesion boundary...
December 28, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/29235153/acral-melanoma-foot-lesions-part-2-clinical-presentation-diagnosis-and-management
#12
REVIEW
A Desai, R Ugorji, A Khachemoune
Acral melanoma (AM) is a rare subtype of cutaneous malignant melanoma found on acral skin, primarily on the soles of the feet. Although rare, it is the most common subtype of melanoma found in patients of African or Asian ethnicity and has a poor prognosis, often because of the more advanced stage of presentation at diagnosis. In the second of this two-part series, we review the clinical presentation, histopathology, diagnosis and management of AM. Clinically, AM presents as a variegated lesion with blue-black pigment and irregular borders on acral skin...
December 13, 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/29234828/-failure-to-perform-dermoscopy-in-melanoma-suspicious-skin-lesions-in-dermatological-practice-possible-medical-liability
#13
REVIEW
L Niebergall, J Meyer, K Kols, P Elsner
No abstract text is available yet for this article.
December 12, 2017: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/29214109/a-solitary-pink-lesion-dermoscopy-and-rcm-features-of-lichen-planus
#14
Claudia Pezzini, Simonetta Piana, Caterina Longo, Elisa Benati, Stefania Borsari, Francesca Specchio, Elvira Moscarella
We present an unusual onset of cutaneous lichen planus (LP) in a middle-aged patient. The initial presentation as solitary, indolent pink lesion required further investigations to rule out malignancy, especially amelanotic melanoma. Dermoscopy and reflectance confocal microscopy findings were found to be helpful in our case in addressing the correct diagnosis.
October 2017: Dermatology Practical & Conceptual
https://www.readbyqxmd.com/read/29186251/histopathological-diagnosis-of-small-melanocytic-lesions-suspicious-for-malignant-melanoma
#15
Danielle Carvalho Quintella, Gabriella Campos-do-Carmo, Leonardo Pereira Quintella, Tullia Cuzzi
The concern about malignant skin neoplasms leads to the excision of smaller lesions. This study on small melanocytic lesions aims to evaluate the range of possible histopathological diagnoses, describe histopathological aspects, and assess the usefulness of serial histological sections. We performed a cross-sectional descriptive histopathological study examining 76 pigmented skin lesions up to 6 mm in diameter. Histopathological diagnoses included atypical melanocytic nevi (n=38), common melanocytic nevi (n=18), atypical lentiginous melanocytic hyperplasia with architectural features of atypical melanocytic nevi (n=7), lentigo simplex (n=2), and malignant melanoma (n=1)...
May 2017: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/29185439/a-survey-on-the-pattern-of-dermoscopy-use-among-dermatologists-in-india
#16
LETTER
Feroze Kaliyadan, Karalikkattil T Ashique, Soumya Jagadeesan
INTRODUCTION AND BACKGROUND: Dermoscopy is being increasingly used for improving dermatological diagnosis. Use of dermoscopy in the early recognition of skin malignancies, especially melanoma, is well established. Of late, its use in general clinical dermatology is growing with the recognition of new and specific patterns in conditions such as hair disorders, inflammatory disorders, and infections/infestations. This cross-sectional survey aims to assess the common patterns of dermoscopy use by Indian dermatologists...
January 2018: Indian Journal of Dermatology, Venereology and Leprology
https://www.readbyqxmd.com/read/29180316/dermoscopy-and-confocal-microscopy-for-metachronous-multiple-melanomas-morphological-clinical-and-molecular-correlations
#17
Maria Colombino, Panagiotis Paliogiannis, Calogero Pagliarello, Antonio Cossu, Amelia Lissia, Rosanna Satta, Laura Mazzoni, Serena Magi, Maria Cristina Sini, Antonella Manca, Milena Casula, Valentina Doneddu, Giuseppe Palmieri, Ignazio Stanganelli
Cutaneous melanoma is one of the most frequent malignancies of the skin in Caucasian populations. Patients who develop cutaneous melanoma are at increased risk of developing a second primary melanoma. The estimated incidence of multiple primary melanoma (MPM) ranges from 1.2% to 8.2% of cases, with a high preponderance of melanomas occurring metachronously. The aim of this study was to describe dermoscopic, microscopic, clinical, and molecular correlations between first and subsequent melanomas in patients with metachronous MPMs...
November 27, 2017: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/29159246/integrating-clinical-dermoscopy-and-reflectance-confocal-microscopy-findings-into-correctly-identifying-a-nevoid-melanoma
#18
Manu Jain, Ashfaq A Marghoob
No abstract text is available yet for this article.
November 2017: JAAD Case Reports
https://www.readbyqxmd.com/read/29141067/an-elusive-amelanotic-melanoma-and-review-of-dermoscopic-findings
#19
Anthony Chiaravalloti, Ali Banki
<p>Amelanotic melanoma (AM) is one of the great masqueraders in dermatology. It is a very difficult clinical diagnosis to make because these tumors are devoid of pigment and other clues of melanoma. They are commonly misdiagnosed clinically as other benign and malignant conditions. We present a new case of AM in an 84-year-old woman with a history of non-melanoma skin cancer. She had a thin pink plaque that was initially misdiagnosed as a basal cell carcinoma. We also discuss dermoscopy and its valuable role to improve diagnostic accuracy...
November 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/29138058/the-diagnostic-value-and-histologic-correlate-of-distinct-patterns-of-shiny-white-streaks-for-the-diagnosis-of-melanoma-a-retrospective-case-control-study
#20
Anna Eliza Verzi, Victor L Quan, Kara Walton, Mary C Martini, Ashfaq A Marghoob, Erin M Garfield, Betty Kong, Maria Cristina Isales, Timothy VandenBoom, Bin Zhang, Dennis West, Pedram Gerami
BACKGROUND: Shiny white streaks (SWS) are best visualized with polarized dermoscopy, and correlate with dermal fibroplasia histopathologically. SWS have been described at higher frequencies in melanomas than benign nevi. OBJECTIVE: We assessed the diagnostic value of different patterns of SWS and their histologic correlate in melanocytic lesions. METHODS: Polarized dermoscopic images of 1507 histopathologically diagnosed melanocytic neoplasms were analyzed for presence and pattern of SWS...
November 11, 2017: Journal of the American Academy of Dermatology
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