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Lentigo maligna melanoma

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https://www.readbyqxmd.com/read/28504388/challenges-of-treating-melanoma-in%C3%A2-situ-lentigo-maligna-type-is-pathological-clearance-the-gold-standard
#1
S M Swetter
No abstract text is available yet for this article.
May 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28436290/topography-of-protein-kinase-c-%C3%AE-ii-in-benign-and-malignant-melanocytic-lesions
#2
Konstanin Krasagakis, Eleftheria Tsentelierou, Gregory Chlouverakis, Efstathios N Stathopoulos
BACKGROUND: Protein kinase C βII promotes melanogenesis and affects proliferation of melanocytic cells but is frequently absent or decreased in melanoma cells in vitro. OBJECTIVE: To investigate PKC-βII expression and spatial distribution within a lesion in various benign and malignant melanocytic proliferations. METHODS: Expression of PKC-βII was semiquantitatively assessed in the various existing compartments (intraepidermal [not nested], junctional [nested], and dermal) of benign (n = 43) and malignant (n = 28) melanocytic lesions by immunohistochemistry...
April 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28436025/melanoma-in%C3%A2-situ-of-lentigo-maligna-type-in-a-young-woman
#3
Matthew F Helm, Michael J Bax, David J Augenblick, Catherine G Chung
No abstract text is available yet for this article.
April 23, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28403068/malignant-melanoma-in-african-americans-a-population-based-clinical-outcomes-study-involving-1106-african-american-patients-from-the-surveillance-epidemiology-and-end-result-seer-database-1988-2011
#4
Krishnaraj Mahendraraj, Komal Sidhu, Christine S M Lau, Georgia J McRoy, Ronald S Chamberlain, Franz O Smith
Malignant melanoma accounts for 75% of all skin cancer deaths and is potentially curable if identified early. Although melanoma is rare in African-Americans (AA), it is associated with a worse prognosis than in Caucasians. This study examines the demographic, pathologic, and clinical factors impacting AA melanoma outcomes.Data for 1106 AA and 212,721 Caucasian cutaneous melanoma patients were abstracted from the Surveillance, Epidemiology, and End Result (SEER) database (1988-2011). Data were grouped on the basis of histological subtypes: "Superficial Spreading" (SS), "Nodular" (NM), "Lentigo Maligna" (LM), "Acral Lentiginous" (AL), and "Not otherwise specified" (NOS)...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28348944/tumoral-melanosis-associated-with-pembrolizumab-treated-metastatic-melanoma
#5
Omar Bari, Philip R Cohen
Tumoral melanosis is a form of completely regressed melanoma that usually presents as darkly pigmented lesions suspicious for malignant melanoma. Histology reveals dense dermal and subcutaneous infiltration of melanophages. Pembrolizumab is an antibody directed against programmed death receptor-1 (PD1) and is frontline treatment for advanced melanoma. An 81-year-old man with metastatic melanoma treated with pembrolizumab who developed tumoral melanosis at previous sites of metastases is described. The PubMed database was searched with the key words: antibody, immunotherapy, melanoma, melanosis, metastasis, pembrolizumab, and tumoral...
February 13, 2017: Curēus
https://www.readbyqxmd.com/read/28329643/epidemiology-of-lentigo-maligna-and-lentigo-maligna-melanoma-in-the-netherlands-1989-2013
#6
Karin Greveling, Marlies Wakkee, Tamar Nijsten, Renate R Vane den Bos, Loes M Hollestein
Lentigo maligna (LM) is considered a precursor to LM melanoma (LMM). We assessed trends in LM and LMM incidence rates between 1989 and 2013 in the Netherlands, and estimated the risk of a LMM after LM. Data on newly diagnosed LM and LMM were obtained from the Netherlands Cancer Registry and PALGA (Dutch Pathology Database). Age-standardized incidence rates (European standardized rate [ESR]), estimated annual percentage changes (EAPC), and the cumulative incidence of LMM after LM were calculated. Between 1989-2013, 10,545 patients were diagnosed with a primary LM and 2,898 with a primary LMM in the Netherlands...
September 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28296789/locally-recurrent-lentigo-maligna-and-lentigo-maligna-melanoma-characteristics-and-time-to-recurrence-after-surgery
#7
Karen L Connolly, Brian P Hibler, Erica H Lee, Anthony M Rossi, Klaus J Busam, Kishwer S Nehal
BACKGROUND: Various studies have reported local recurrence (LR) rates after surgical treatment of lentigo maligna (LM) and lentigo maligna melanoma (LMM). However, the time to LR of LM/LMM is not currently known, as few studies report time to LR and have long-term follow-up. OBJECTIVE: To define time to LR in LM/LMM after surgical treatment, and to describe features of observed LR. MATERIALS AND METHODS: Retrospective single-center study of consecutive patients presenting with locally recurrent LM/LMM...
March 14, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28295169/characteristic-features-of-cutaneous-melanoma-in-a-dermatology-referral-centre-in-tehran-iran
#8
Kambiz Kamyab, Sheyda Kazemi, Pourya Azimi, Arghavan Azizpour, Narges Ghandi, Elham Pirooz, Pedram Noormohammadpour, Mostafa Mirshams-Shahshahani, Maryam Daneshpazhooh
BACKGROUND/OBJECTIVES: The characteristics of cutaneous melanoma in the Middle-Eastern countries is poorly described. Therefore we conducted this study to determine the characteristics of melanoma in Iran. METHODS: A retrospective, cross sectional study of melanoma patients seen at a tertiary referral centre, Iran, from May 2004 to October 2014. Clinical data included age and gender of the patients at the time of diagnosis, tumour location and tumour size. Histological characteristics included Breslow thickness, Clark level and subtype of tumour...
March 15, 2017: Australasian Journal of Dermatology
https://www.readbyqxmd.com/read/28218469/diagnostic-accuracy-of-reflectance-confocal-microscopy-using-vivascope-for-detecting-and-monitoring-skin-lesions-a-systematic-review
#9
S J Edwards, G Osei-Assibey, R Patalay, V Wakefield, C Karner
BACKGROUND: Skin cancer is one of the most common cancers in the UK. Patients with suspicious skin lesions are assessed clinically with/without dermoscopy, and lesions still considered suspicious are then surgically removed or have the diagnosis confirmed by a punch biopsy. AIM: To evaluate the diagnostic accuracy of the in vivo VivaScope(©) reflective confocal microscopy (RCM) system, a noninvasive technology designed to provide a more accurate presurgical diagnosis, leading to fewer biopsies of benign lesions, or to provide greater accuracy for lesion margins...
April 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/27987308/a-systematic-review-on-the-role-of-imiquimod-in-lentigo-maligna-and-lentigo-maligna-melanoma-need-for-standardization-of-treatment-schedule-and-outcome-measures
#10
REVIEW
D Tio, J van der Woude, C A C Prinsen, E P Jansma, R Hoekzema, C van Montfrans
Lentigo maligna (LM) is an in situ variant of melanoma. Our objective was to systematically review clinical and histological clearance and recurrence rates of imiquimod treatment of LM with emphasis on progression to lentigo maligna melanoma (LMM). PubMed, EMBASE and the Cochrane library were searched from inception to May 2015. Articles were included if they described histologically proven LM treated with imiquimod 5% monotherapy or combined with another topical therapy. Analysed outcomes were clinical and histological clearance, recurrence rates and number of LMM...
April 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/27926588/incidence-trends-and-clinical-pathological-characteristics-of-invasive-cutaneous-melanoma-from-1980-to-2010-in-the-canton-of-zurich-switzerland
#11
Remo Minini, Sabine Rohrmann, Ralph Braun, Dimitri Korol, Silvia Dehler
The aims of this paper are to describe the incidence trends of invasive cutaneous melanoma in the Canton of Zurich and to evaluate clinical and pathological factors such as cancer subtype, localization, age and Breslow thickness. A retrospective analysis was carried out with data from the population-based Cancer Registry of Zurich and Zug located in Zurich. A total of 8469 cases in 8034 different patients of invasive cutaneous melanoma were registered for the period 1980-2010 in the Canton of Zurich. Incidence trends were age standardized to the European standard population...
December 6, 2016: Melanoma Research
https://www.readbyqxmd.com/read/27906694/follicular-malignant-melanoma-a-rare-morphologic-variant-of-melanoma-report-of-a-case-and-review-of-the-literature
#12
Iona Chapman, Sharon Horton, Wenhua Liu
Follicular malignant melanoma (FMM) is an exceedingly rare variant of melanoma. Only 8 cases have been reported in the literature thus far. Often bland on physical examination, FMM shows a striking histologic pattern, with atypical melanocytes sometimes consuming the entire follicle and extending into the dermis. Criteria have been suggested to help distinguish FMM from lentigo maligna melanoma; however, no clear criteria distinguish this cancer clinically. FMM cannot be distinguished from follicular metastases of melanoma based on histology, requiring close clinical correlation and detailed history taking on the part of the practitioner...
May 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/27898656/interval-cancers-after-skin-cancer-screening-incidence-tumour-characteristics-and-risk-factors-for-cutaneous-melanoma
#13
J Hübner, A Waldmann, A C Geller, M A Weinstock, N Eisemann, M Noftz, S Bertram, S Nolte, B Volkmer, R Greinert, E Breitbart, A Katalinic
BACKGROUND: The rate of interval cancers is an established indicator for the performance of a cancer-screening programme. METHODS: We examined the incidence, tumour characteristics and risk factors of melanoma interval cancers that occurred in participants of the SCREEN project, which was carried out 2003/2004 in Schleswig-Holstein, Germany. Data from 350 306 SCREEN participants, who had been screened negative for melanoma, were linked to data of the state cancer registry...
January 17, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/27873142/university-hospital-waterford-5-year-experience-of-cutaneous-melanoma
#14
R Sehgal, C X Cheung, R Alradadi, D A Healy, R Landers, G T O'Donoghue
INTRODUCTION: The incidence of cutaneous melanoma (CM) continues to rise in Ireland. Despite significant advances in melanoma molecular therapy, surgery remains the mainstay of treatment for CM. The University Hospital Waterford (UHW) prospectively maintained CM registry was established in 2010. AIM: To summarize 5-year experience (2010-2015) of primary CM presenting to UHW. METHODS: Data were retrospectively obtained from a central electronic pathology and radiology repository augmented by HIPE data and theatre logs...
May 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/27728982/desmoplastic-melanoma-a-challenge-for-the-oncologist
#15
Marco Manfredini, Giovanni Pellacani, Lorena Losi, Monia Maccaferri, Aldo Tomasi, Giovanni Ponti
AIM: To evaluate clinical, pathologic and genetic features of desmoplastic melanoma (DM). MATERIALS & METHODS: Analysis of all DM records from 1991 to 2015. RESULTS: The most common location of DMs was the head and neck (69%); median age and follow-up were 60.5 and 7.3 years, respectively. A familial predisposition for DMs and others malignancies was analyzed. Thin Breslow thickness (<4.5 mm) was associated with an intraepidermal component or a previous lentigo maligna, whereas high Breslow thickness (>4...
February 2017: Future Oncology
https://www.readbyqxmd.com/read/27714781/effect-of-topical-imiquimod-as-primary-treatment-for-lentigo-maligna-the-limit-1-study
#16
J R Marsden, R Fox, N M Boota, M Cook, K Wheatley, L J Billingham, N M Steven
BACKGROUND: Topical imiquimod is sometimes used for lentigo maligna (LM) in situ melanoma instead of surgery, but frequency of cure is uncertain. Pathological complete regression (pCR) is a logical surrogate marker for cure after imiquimod, although residual LM and atypical melanocytic hyperplasia may not be reliably distinguished. A trial comparing imiquimod vs. surgery might be justified by a high imiquimod pCR rate. OBJECTIVES: Primary: to estimate the pCR rate for LM following imiquimod...
October 6, 2016: British Journal of Dermatology
https://www.readbyqxmd.com/read/27692448/lentigo-maligna-macules-of-the-face-and-lesions-on-sun-damaged-skin-confocal-makes-the-difference
#17
REVIEW
Phoebe Star, Pascale Guitera
Distinguishing lentigo maligna (LM) and lentigo maligna melanoma (LMM) from background pigmented non-melanoma lesions is challenging. The field of solar damage can obscure clinical assessment, and diagnostic ambiguities are created due to the overlap of the clinical features of LM with other benign lesions. Moreover, margin assessment on histology is limited by the resemblance between melanocytic hyperplasia of actinically damaged skin and scattered atypical melanocytes of LM/LMM. Dermoscopy has made a significant contribution but is often not sufficient for diagnosis and margin assessment...
October 2016: Dermatologic Clinics
https://www.readbyqxmd.com/read/27692447/melanomas
#18
REVIEW
Caterina Longo, Giovanni Pellacani
Melanomas are a wide range of tumors that differ in their epidemiology, morphology, genetic profile, and biological behavior. They can be grouped as superficial spreading melanoma, lentigo maligna, and nodular melanoma. Reflectance confocal microscopy is useful for the evaluation of skin lesions that are dermoscopically doubtful by increasing diagnostic accuracy and specificity. This article provides a comprehensive overview of the different confocal main morphologies of distinct melanoma types as a function of the anatomic location of the tumor...
October 2016: Dermatologic Clinics
https://www.readbyqxmd.com/read/27689028/cutaneous-melanoma-in-asians
#19
REVIEW
Sang Yub Kim, Sook Jung Yun
Malignant melanoma is a rare disease in Asians but potentially the most aggressive form of skin cancer worldwide. It can occur in any melanocyte-containing anatomic site. Four main cutaneous melanoma subtypes are recognized: lentigo maligna melanoma, superficial spreading melanoma, acral lentiginous melanoma (ALM), and nodular melanoma. Generally, excessive exposure to ultraviolet (UV) radiation increases the risk of melanoma. The exception is ALM, which is the most common melanoma subtype in Asians and is not associated with UV radiation...
September 2016: Chonnam Medical Journal
https://www.readbyqxmd.com/read/27640136/associations-between-childhood-height-and-morphologically-different-variants-of-melanoma-in-adulthood
#20
Kathrine Damm Meyle, Michael Gamborg, Lisbet Rosenkrantz Hölmich, Jennifer Lyn Baker
AIM OF THE STUDY: Melanoma subtypes have different aetiological characteristics. Child height is positively associated with adult melanoma; however, a clarification of associations with specific melanoma variants is necessary for an improved understanding of risk factors underlying the histologic entities. This study investigated associations between childhood height and future development of cutaneous melanoma variants. METHOD: A cohort study of 316,193 individuals from the Copenhagen School Health Records Register, with measured heights at ages 7-13 years who were born from 1930 to 1989...
November 2016: European Journal of Cancer
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