keyword
MENU ▼
Read by QxMD icon Read
search

Melanoma in situ

keyword
https://www.readbyqxmd.com/read/28646613/novel-tmc8-splice-site-mutation-in-epidermodysplasia-verruciformis-and-review-of-hpv-infections-in-patients-with-the-disease
#1
E Imahorn, Z Yüksel, I Spoerri, G Gürel, C Imhof, Z N Saraçoğlu, A E Koku Aksu, P L Rady, S K Tyring, W Kempf, P H Itin, B Burger
BACKGROUND: Epidermodysplasia verruciformis (EV) is a genodermatosis leading to infections with cutaneous HPV, persistent plane warts and a high rate of non-melanoma skin cancer (NMSC). Biallelic loss-of-function mutations in TMC6 and TMC8 are known to be causative. OBJECTIVE: The aim of this study was to report EV-causing mutations in four patients with EV and to give an overview of all described EV patients. PATIENTS AND METHODS: We investigated four patients with classical features of EV from two families...
June 24, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28645508/merkel-cell-carcinoma-melanoma-metastatic-mimics-of-breast-cancer
#2
REVIEW
Megan L Troxell
Merkel cell carcinoma and melanoma can each occur primarily in breast skin, or metastasize to the breast. The breast is a rare site of metastasis of essentially any and every type of tumor, including carcinomas, sarcomas, and hematolymphoid neoplasms, and 10-30% of breast metastases may represent the initial presentation of disease. Although metastases generally recapitulate histologic features of the primary tumor, they are diagnostically challenging given their rarity and morphologic overlap with breast carcinoma, including special types of breast cancer...
May 31, 2017: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/28640877/identification-of-c-ebp%C3%AE-as-a-novel-target-of-the-hpv8-e6-protein-regulating-mir-203-in-human-keratinocytes
#3
Anna M Marthaler, Marta Podgorska, Pascal Feld, Alina Fingerle, Katrin Knerr-Rupp, Friedrich Grässer, Hans Smola, Klaus Roemer, Elke Ebert, Yoo-Jin Kim, Rainer M Bohle, Cornelia S L Müller, Jörg Reichrath, Thomas Vogt, Magdalena Malejczyk, Sławomir Majewski, Sigrun Smola
Patients suffering from Epidermodysplasia verruciformis (EV), a rare inherited skin disease, display a particular susceptibility to persistent infection with cutaneous genus beta-human papillomavirus (beta-HPV), such as HPV type 8. They have a high risk to develop non-melanoma skin cancer at sun-exposed sites. In various models evidence is emerging that cutaneous HPV E6 proteins disturb epidermal homeostasis and support carcinogenesis, however, the underlying mechanisms are not fully understood as yet. In this study we demonstrate that microRNA-203 (miR-203), a key regulator of epidermal proliferation and differentiation, is strongly down-regulated in HPV8-positive EV-lesions...
June 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28619614/rapid-ex-vivo-examination-of-mohs-specimens-using-optical-coherence-tomography
#4
D Rashed, D Shah, A Freeman, R J Cook, C Hopper, C M Perrett
BACKGROUND: Mohs micrographic surgery (MMS) is an effective treatment for certain non-melanoma skin cancers. Optical coherence tomography (OCT) is a biomedical imaging modality that permits high-resolution imaging of the epidermis and dermis with the potential to detect both healthy tissue and tumour. OCT may also provide a means of detecting and differentiating between the various histological subtypes of basal cell carcinomas (BCC) in vivo. OBJECTIVE: The aim of this prospective ex vivo study was to evaluate the efficacy of OCT in recognising healthy and pathological margins of excised BCC lesions and detecting different BCC subtypes...
June 12, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28614272/quantification-of-microrna-21-and-microrna-125b-in-melanoma-tissue
#5
Anne Wandler, Rikke Riber-Hansen, Henrik Hager, Stephen J Hamilton-Dutoit, Henrik Schmidt, Boye S Nielsen, Magnus Stougaard, Torben Steiniche
Although microRNAs (miRNAs) have emerged as potent mediators of melanoma development and progression, a precise understanding of their oncogenic role remains unclear. In this study, we analysed formalin-fixed and paraffin-embedded tissues from two separate melanoma cohorts and from a series of benign melanocytic nevi. Using three different quantification methods [array analysis, quantitative PCR (qPCR) and in-situ hybridization (ISH) quantified by digital image analysis], we found considerable miRNA dysregulation in tumours...
June 13, 2017: Melanoma Research
https://www.readbyqxmd.com/read/28609317/characteristics-of-melanoma-in-japan-a-nationwide-registry-analysis-2011-2013
#6
Taro Tomizuka, Kenjiro Namikawa, Takahiro Higashi
The distribution and incidence of melanoma vary among different races and ethnic groups. This study aimed to investigate the characteristics of cutaneous melanoma, mucosal melanoma, uveal melanoma, and melanoma of unknown primary (MUP) origin in a Japanese population. We studied these four types of melanoma in patients registered in Hospital Based Cancer Registries in Japan from 2011 to 2013. A total of 5566 patients with melanoma were identified. The distribution of sex, age, primary site, and clinical stage was analyzed...
June 12, 2017: Melanoma Research
https://www.readbyqxmd.com/read/28601390/frequency-of-and-risk-factors-for-tumor-upstaging-after-wide-local-excision-of-primary-cutaneous-melanoma
#7
Jeremy R Etzkorn, John M Sharkey, John W Grunyk, Thuzar M Shin, Joseph F Sobanko, Christopher J Miller
BACKGROUND: Detecting a more advanced stage of the primary melanoma after wide local excision and reconstruction can complicate patient counseling about prognosis, management of surgical margins, and indications for sentinel lymph node biopsy. OBJECTIVE: To identify the frequency of and risk factors associated with upstaging after wide local excision of primary melanoma. METHODS: Retrospective, single center, cross-sectional study of 1332 consecutive in situ to stage T4a melanomas treated with wide local excision...
June 7, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28589622/cutaneous-malignancies-simulating-seborrheic-keratoses-an-underappreciated-phenomenon
#8
Tiffany Y Chen, Annie O Morrison, Clay J Cockerell
BACKGROUND: Seborrheic keratosis (SK), a common and benign entity, is generally diagnosed clinically without the need for a biopsy. Given their variable appearance, SK may mimic cancer clinically and require biopsy for clinically equivocal cases. A clinician may also choose to perform biopsies on SK based on other circumstances, such as cosmetic reasons, or SK being in an inconvenient and irritative location. METHODS: Dermatopathology samples from 2015 obtained from private and university locations were retrospectively assessed...
June 7, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28573666/detection-of-desmoplastic-melanoma-with-dermoscopy-and-reflectance-confocal-microscopy
#9
N G Maher, A Solinas, R A Scolyer, S Puig, G Pellacani, P Guitera
BACKGROUND: Desmoplastic melanoma (DM) is frequently misdiagnosed clinically and often associated with melanoma in situ (MIS). OBJECTIVE: To improve the detection of DM using dermoscopy and reflectance confocal microscopy (RCM). METHODS: A descriptive analysis of DM dermoscopy features and a case-control study within a melanoma population for RCM feature evaluation, performed blindly, using data obtained between 2005 and 2015. After retrospectively identifying all DM cases with RCM data over the study period (n=16), a control group of non-DM melanoma patients with RCM data, in a ratio of at least 3:1, was selected...
June 2, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28567312/intracorneal-hematoma-showing-clinical-and-dermoscopic-features-of-acral-lentiginous-melanoma
#10
Ugur Uslu, Franz Heppt, Michael Erdmann
Intra- and subcorneal hematoma, a skin alteration seen palmar and plantar after trauma or physical exercise, can be challenging to distinguish from in situ or invasive acral lentiginous melanoma. Thus, careful examination including dermoscopic and histologic assessment may be necessary to make the correct diagnosis. We here present a case of a 67-year-old healthy female patient who presented with a pigmented plantar skin alteration. Differential diagnoses included benign skin lesions, for example, hematoma or melanocytic nevus, and also acral lentiginous melanoma or melanoma in situ...
2017: Case Reports in Dermatological Medicine
https://www.readbyqxmd.com/read/28562437/use-of-skin-biopsies-among-dermatologists
#11
David A Weinstein, Sasank Konda, Brett M Coldiron
BACKGROUND: Skin biopsies are essential to establish a diagnosis in many skin diseases. Utilization has been increasing rapidly and represents a significant health care cost. There are no benchmarks or baselines to guide the practice of skin biopsies. OBJECTIVE: To create a reference data set of biopsy behavior among dermatologists. METHODS: Five hundred eighty-eight dermatologists belonging to the American Dermatological Association (ADA) were surveyed...
May 25, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28556023/index-report-of-cutaneous-angiosarcoma-with-strong-positivity-for-tyrosinase-mimicking-melanoma-with-further-evaluation-of-melanocytic-markers-in-a-large-angiosarcoma-series
#12
Alicia Leon-Castillo, John S A Chrisinger, Gauri Panse, Rashmi T Samdani, Davis R Ingram, Vinod Ravi, Victor G Prieto, Wei-Lien Wang, Alexander J Lazar
Cutaneous angiosarcoma can be challenging to diagnose particularly when poorly vasoformative and on biopsies. We report a case of a cutaneous angiosarcoma with strong positivity for tyrosinase, the first to our knowledge, initially misdiagnosed as melanoma. We subsequently evaluated the reactivity of panmelanocytic cocktail (tyrosinase, HMB-45 and melan-A), SOX10, tyrosinase and MITF in a large tissue microarray (TMA) of angiosarcoma. The TMA included 142 cases of angiosarcomas (29 cutaneous, 22 primary breast, 41 post-radiation breast, 15 visceral, 26 deep soft tissue and bone, 5 chronic lymphedema-associated, and 4 angiosarcomas arising in other sarcomas)...
May 27, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28555933/lentigo-maligna-melanoma-with-a-history-of-cosmetic-treatment-prevalence-surgical-outcomes-and-considerations
#13
Brian P Hibler, Karen L Connolly, Erica H Lee, Anthony M Rossi, Kishwer S Nehal
INTRODUCTION: Lentigo maligna (LM) is melanoma in situ on sun-damaged skin and presents diagnostic challenges due to overlapping features with benign pigmented lesions. Cosmetic treatments may be inadvertently performed on LM. The aim of this study is to estimate the prevalence of LM with prior cosmetic treatment, and evaluate surgical outcomes. STUDY DESIGN AND METHODS: Retrospective review of biopsy-proven LM presenting over a 10-year-period (2006-2015). Prior cosmetic treatment and biopsies were recorded...
May 29, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28547860/inhibition-of-melanoma-metastasis-by-dual-peptide-plga-nps
#14
Denise Costa Arruda, Thaís Dolzany de Oliveira, Patrícia Harume Fukuda Cursino, Vera Susana Carneiro Maia, Rodrigo Berzaghi, Luiz R Travassos, Dayane Batista Tada
Despite the positive results observed in vitro and in vivo, clinical trials with bioactive peptides are generally hampered by their fast degradation in the biological system. Two bioactive peptides, P20 (CSSRTMHHC) and the combined peptide C (CVNHPAFACGYGHTMYYHHYQHHL) have been identified as anticancer therapeutics. Combined peptide C consists of peptide C (CVNHPAFAC), a tumor-homing peptide, conjugated to the antiangiogenic peptide HTMYYHHYQHHL with a GYG. In this work, PLGA NPs with peptide C were applied as a dual-peptide carrier for application in cancer therapy...
May 25, 2017: Biopolymers
https://www.readbyqxmd.com/read/28546884/in-vivo-and-in-situ-programming-of-tumor-immunity-by-combining-oncolytics-and-pd-1-immune-checkpoint-blockade
#15
Eric Bartee, Zihai Li
Blockade of the programmed cell death protein 1 (PD1) pathway is clinically effective against human cancers. Although multiple types of malignancies have been shown to respond to PD1 agents, only a small percentage of patients typically benefit from this treatment. In addition, PD1 therapy often causes serious immune-related adverse events. A recent study demonstrated that local, intra-tumoral, administration of modified oncolytic myxoma virus which expresses a truncated version of the PD1 protein resulted in both increased efficacy and reduced toxicity in a clinically relevant melanoma model...
2017: Experimental Hematology & Oncology
https://www.readbyqxmd.com/read/28543532/intraepidermal-merkel-cell-carcinoma-a-case-series-of-a-rare-entity-with-clinical-follow-up
#16
George Jour, Phyu P Aung, Eduardo Rozas-Muñoz, Johnathan L Curry, Victor Prieto, Doina Ivan
BACKGROUND: Merkel cell carcinoma (MCC) is a rare but aggressive cutaneous carcinoma. MCC involves typically dermis and although epidermotropism has been reported, MCC strictly intraepidermal or in situ (MCCIS) is exceedingly rare. Most of the cases of MCCIS described so far have associated other lesions, such as squamous or basal cell carcinoma, actinic keratosis, etc. Herein, we describe three patients with MCC strictly in situ, without a dermal component. METHODS: Our patients were elderly, two of the lesions involved the head and neck area and one was on a finger...
May 23, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28541884/an-incomplete-picture-challenges-of-partial-biopsies-in-large-diameter-atypical-melanocytic-lesions
#17
Lauren C Strazzulla, Hong Wu, Marissa Heller, Caroline C Kim
Large diameter atypical pigmented lesions (LDAPL) can be challenging to diagnose accurately using partial biopsies because of pathologic heterogeneity, while at the same time large excisions of these lesions confer significant morbidity to patients. Consequently, clinicians are often challenged by the management of these lesions. In this case, we describe an elderly patient with a history of multiple basal cell carcinomas, prior melanomas, and a family history of melanoma who presented with an irregularly pigmented brown and dark brown patch on his upper back...
April 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/28538900/study-of-448-cases-of-melanoma-in-situ-in-two-hospitals-in-rio-de-janeiro
#18
Luciana Pantaleão, Mayra Carrijo Rochael
The diagnosis of cutaneous melanoma in situ, considered to have excellent prognosis, has been increasingly frequent, with rare isolated reports of cutaneous melanoma in situ presenting recurrence, metastasis, and death. No specific study is found in the literature about these lesions of unexpected behavior. We describe the demographic and histopathological findings of 448 cases of cutaneous melanoma in situ in 369 patients, emphasizing the prognostic criteria of those with unfavorable outcomes, corresponding to 9 cases in which regression had no significant role...
March 2017: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28537538/-increasing-incidence-of-thin-melanomas-in-the-netherlands
#19
J Zoutendijk, R J T van der Leest, T Nijsten, W J Mooi, J I van der Rhee, E de Vries, L M Hollestein
OBJECTIVE: In the Netherlands the incidence of melanomas in situ and thin invasive melanomas is rising more quickly than that of thicker melanomas. Our aim was to gain insight into this increase and to test the hypothesis that it is attributable to over-diagnosis. METHOD: We analysed data taken from the Netherlands Cancer Registry on all primary melanomas diagnosed between 1994 and 2010. We assessed trends in European standardised rates (ESR) using joinpoint analysis, and expressed these trends as estimated annual percentage change (EAPC)...
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/28525420/diagnostic-criteria-in-intraepithelial-pagetoid-neoplasms-a-histopathologic-study-and-evaluation-of-select-features-in-paget-disease-bowen-disease-and-melanoma-in-situ
#20
Amira Elbendary, Ruzeng Xue, Manuel Valdebran, Kara Melissa T Torres, Kruti Parikh, Inas Elattar, Eun Ji Kwon, Dirk M Elston
BACKGROUND: Paget disease, Bowen disease, and malignant melanoma in situ are intraepidermal neoplasms, characterized by the presence of pagetoid scatter of atypical cells in the epidermis. This study reviewed the frequency of select histologic criteria to validate their usefulness in the histologic distinction between these entities. METHODS: One hundred forty-four specimens with the diagnosis of Bowen disease, 144 specimens with Paget disease (mammary and extramammary), and 144 specimens with malignant melanoma in situ were examined microscopically to define frequencies of select histologic criteria present in each disease...
June 2017: American Journal of Dermatopathology
keyword
keyword
39793
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"