Background. Dendritic cells could be involved in immune surveillance of highly immunogenic tumors such as melanoma. Their role in the progression melanocytic nevi to melanoma is however a matter of controversy. Read More
Digital dermoscopy (DD) follow up is a useful strategy for monitoring patients at high risk of melanoma. Reflectance confocal microscopy (RCM) is a valuable second-level examination after dermoscopy for the evaluation of difficult to diagnose lesions. The aim of this study was to assess the value of RCM in routine DD monitoring of patients at high risk of melanoma. Read More
J Invest Dermatol 2017 Apr 24;137(4):905-909. Epub 2016 Nov 24.
Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA; Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, New York, USA. Electronic address:
A well-defined risk factor and precursor for cutaneous melanoma is the dysplastic nevus. These benign tumors represent clonal hyperproliferation of melanocytes that are in a senescent-like state, but with occasional malignant transformation events. To portray the mutational repertoire of dysplastic nevi in patients with the dysplastic nevus syndrome and to determine the discriminatory profiles of melanocytic nevi (including dysplastic nevi) from melanoma, we sequenced exomes of melanocytic nevi including dysplastic nevi (n = 19), followed by a targeted gene panel (785 genes) characterization of melanocytic nevi (n = 46) and primary melanomas (n = 42). Read More
Background: Dysplastic nevi with severe atypia (severely dysplastic nevi [SDN]) are frequently re-excised because of the concern that these lesions may in fact represent early melanoma. Data on long-term follow-up of these patients are limited.
Objective: We sought to determine the rate of subsequent melanoma development in patients with SDN who underwent re-excision versus those who did not and to determine factors associated with decision to re-excise. Read More
Purpose: People with melanoma often report pervasive fears about cancer recurrence, unmet information needs, and difficulties accessing psychological care. Interventions addressing the supportive care needs of people with melanoma are rare, and needs are often overlooked. The study evaluated a newly developed, evidence-based, psycho-educational resource for people with melanoma. Read More
*Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY; †Ohio State University Comprehensive Cancer Center, Columbus, OH; and ‡NYC Dermatology and Cosmetic Center, New York, NY.
Epithelial sheath neuroma is a rarely recognized but established entity in the medical literature. First described in 2000 by Requena et al, there have only been 7 published cases to date, mostly in female patients and presenting as symptomatic solitary lesions on the back without a known history of trauma. In 2006, Beer et al described and reviewed a dozen cases in which epithelial sheath neuroma-like features were seen in the advent of a surgical procedure, which was termed "re-excision perineural invasion" and attributed to possible eccrine duct implantation during surgery. Read More
Background: For even seasoned practitioners, early melanomas can be difficult to distinguish from melanocytic nevi. Although serial digital dermoscopy is considered by many to be the gold standard for monitoring patients at high risk, poor compliance can seriously alter efficacy. In 2014, a concerning compliance rate of 25% was reported from a single, private clinic. Read More
In this issue of Cancer Research, Almassalha and colleagues have proposed a new concept of the development of malignancy, that of the greater genomic landscape. They propose a stressor-related exploration of intracellular genomic sites as a response mechanism. This process can express sites with beneficial or deleterious effects, among them those that promote cell proliferation. Read More
Dermatology Service, Veterans Affairs Palo Alto Health Care System, Palo Alto, California2Pigmented Lesion and Melanoma Program, Department of Dermatology, Stanford University Medical Center and Cancer Institute, Stanford, California.
Importance: Controversy persists regarding the appropriate management of incompletely excised, biopsy-proven, mild and moderate dysplastic nevi (DN).
Objective: To determine long-term risk of associated melanoma in biopsied mild or moderate DN with positive histologic margins that were clinically observed vs reexcised with negative margins.
Design, Setting, And Participants: Retrospective cohort study of mixed referral and community patients from an academic pigmented lesion clinic and dermatology clinics of the affiliated Veteran Affairs medical center with biopsy-confirmed DN with positive histologic margins diagnosed from May 15, 1991, to July 8, 2015, and followed up through May 30, 2016. Read More
Background: The similar genetic background of a pair of twins, and the similar environmental impacts to which they are exposed allow an exact and objective investigation of various constitutional and environmental factors in naevus development. As far as we are aware, this is the first published survey that simultaneously examines cutaneous and ocular pigmented lesions in an appreciable sample of identical and non-identical twins.
Methods: 172 pairs of twins of Caucasian origin were included in this study. Read More
Differentiation of proliferative nodules in giant congenital nevi from melanoma arising within such nevi is an important diagnostic challenge. DNA methylation is a well-established epigenetic modification already observed in the earliest stages of carcinogenesis, which increases during melanoma progression. The ten-eleven translocation enzymes catalyze the oxidation of 5-methylcytosine to 5-hydroxymethylcytosine (5-hmC), which has recently been reported as an epigenetic hallmark associated with tumor aggressiveness and poor prognosis in a wide variety of cancers. Read More
Background/aim: Melanoma is the most aggresive malignant tumor of the skin. Contradictory data was published on vascular endothelial growth factor (VGEF) in tumor samples and its role in skin melanoma progression and prognosis. The aim of this study was to investigate the significance of VEGF expression as a prognostic parameter in melanoma. Read More
Dysplastic nevi (DNs), also known as Clark's nevi or atypical moles, are distinguished from common melanocytic nevi by variegation in pigmentation and clinical appearance, as well as differences in tissue patterning. However, cellular and molecular differences between DNs and common melanocytic nevi are not completely understood. Using cDNA microarray, quantitative RT-PCR, and immunohistochemistry, we molecularly characterized DNs and analyzed the difference between DNs and common melanocytic nevi. Read More
Unlabelled: The authors' interest was focused on prolactin status in patients with melanocytic lesions and on changes induced by interferon treatment in melanoma patients.
Material And Method: The study lasted 5 years and included 128 melanoma patients, 48 dysplastic nevi patients and 48 healthy volunteers. Sixty melanoma cases were selected after surgical removal of tumor and divided into 2 groups: 30 patients with 10 MUmp(-1) interferon alpha2b treatment, three times a week, one year and 30 patients without interferon treatment. Read More
Genital melanomas (GM) are the second most common cancer of the female external genitalia and may be confused with atypical genital nevi (AGN), which exhibit atypical histological features but have benign behavior. In this study, we compared the clinical, histological, and molecular features of 19 GM and 25 AGN. We described chromosomal copy number aberrations and the mutational status of 50 oncogenes and tumor suppressor genes in both groups. Read More
Genitourinary cancers are associated with a range of cutaneous syndromes, which can reflect direct metastatic spread, non-metastatic manifestations of malignancy or the consequences of treatment. More than 220,000 new cases of prostate cancer occur each year in the United States, and thus the associations with cutaneous involvement are quite well documented-rare metastatic spread, vasculitic and hemorrhagic syndromes. Cancers of the bladder and kidney may be associated with direct cutaneous metastases, vasculitic syndromes, hereditary leiomyomatosis, and other familial syndromes. Read More
Dear Editor, Ultraviolet (UV) radiation is a well-known physical hazard responsible for photoaging, photoallergic, and phototoxic reactions as well as carcinogenesis, including life-threatening melanomas (1,2). Overexposure to both natural and artificial UV radiation is a public health concern. 30% of cancers diagnosed worldwide are skin cancers. Read More
Tumours progress to fully malignant neoplasms through stages of development in a stepwise process. A carcinogenic stimulus such as UV light typically results in a large number of lesions, most of which are benign. Most such lesions will remain stable or regress, while a few will develop cytological and architectural atypia, placing them in a morphologically 'intermediate' category between wholly benign and fully malignant. Read More
1Department "Medicinal Information and Non-interventional studies", Bulgarian Drug Agency, Sofia, Bulgaria; 2"Onkoderma"- Ambulatory Clinic for Dermatology and Skin Surgery, Sofia, Bulgaria; 3Department of General and Clinical Pathology, Medical Faculty, "Saint Kliment Ohridski University"; 4Dermatology Department, University Hospital of Coimbra, Praceta Mota Pinto, Portugal; 5Department of General and Clinical pathology, Medical University of Plovdiv, Bulgaria; 6Department of Dermatology and Allergology, Academic Teaching Hospital Dresden-Friedrichstadt, Dresden, Germany.
We describe a rare case of a 28 year-old male patient presenting with pruritus and increased sensitivity of the prepuce accompanied by erythematous confluent papules, unilateral nevus flammeus (NF) along almost the whole length of the right lower limb and two dysplastic nevi (DN), one located on the mid back and the other on the medial border of the right fifth toe, the latter coinciding with the NF. A biopsy of the prepuce revealed lichen sclerosus et atrophicus (LSA). Mental health assessment revealed anxiety disorder and predisposition to panic attacks. Read More
Approximately 5-10 % of cutaneous melanoma occurs in kindreds with a hereditary predisposition. Mutations in the CDKN2A gene are found to occur in approximately 20-40 % of these kindreds. The first historical mention of what is now called the familial atypical multiple mole melanoma syndrome appears to be from 1820, with more reports throughout the 1950s, 1960s, and later years. Read More
Background: Dermoscopy allows for visualization of morphologic structures beyond the epidermis, including features that may indicate early malignant transformation. However, dermoscopic features are rarely considered during routine histologic sectioning, and areas of clinical concern may be missed during microscopic evaluation.
Objective: We assessed the diagnostic impact of a dermoscopy-guided micropunch score for the evaluation of melanocytic lesions. Read More
Wellman Center for Photomedicine and Department of Dermatology, Massachusetts General Hospital, Harvard University, Boston, Massachussets4Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.
Background: Despite a lack of evidence that dysplastic nevi are precursors to melanoma, a large proportion of dermatologists continue to treat them as such. Emerging data suggest that histologic grading approach may result in many unnecessary excisions.
Objective: Using a nongrading approach to diagnosis of Clark/dysplastic nevi, the current study sought to define and determine the diagnostic uncertainty rate, and to report on the results of re-excisions of such lesions. Read More
IMP-3 is generally considered as an oncofetal protein, which plays a critical role in regulation of cell proliferation via an IGF-II-dependent pathway in K562 leukemia cells. IMP-3 expression has been detected in malignancies with various origins, while its appearance in adult tissue is generally considered abnormal, with some exceptions. IMP3 is also considered a prognostic biomarker in patients with renal cell carcinoma and clear-cell type ovarian carcinoma, hepatocellular carcinoma, pancreatic ductal adenocarcinoma and in patients with poorly differentiated thyroid carcinoma and uterine cervical carcinomas, testicular cancer and malignant melanoma. Read More
Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania; Florida Center for Dermatology, P.A., Saint Augustine, Florida. Electronic address:
Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois; Robert H. Lurie Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, Illinois. Electronic address:
Wellman Center for Photomedicine and Department of Dermatology, Massachusetts General Hospital, Harvard University, Boston4Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Boston.
Importance: Several kindreds having germline BAP1 mutations with a propensity for uveal and cutaneous melanomas and other internal malignancies have been described in an autosomal dominant tumor predisposition syndrome. However, clinically atypical moles have not been previously recognized as a component of this syndrome, to our knowledge. We describe the first kindred to date with a germline mutation in BAP1 associated with multiple cutaneous melanomas and classic dysplastic nevus syndrome. Read More
Methods: We conducted a retrospective chart review and identified 186 Veterans in the VA Corporate Data Warehouse as having malignant melanomas or severely dysplastic nevi during the four-year period of observation from 1 July 2009 to 30 June 2013 and met inclusion and exclusion criteria for analysis.
Results: Three hundred and sixty-six surgical procedures were performed for diagnosis and treatment of these conditions including biopsy and wide-local excision, of which 189 carefully selected cases were performed by primary care clinicians with 2.0% biopsy complication rate and a 7. Read More
Background: The p16-Leiden founder mutation in the CDKN2A gene is the most common cause of Familial Atypical Multiple Mole Melanoma (FAMMM) syndrome in the Netherlands. Individuals with this mutation are at increased risk for developing melanoma of the skin, as well as pancreatic cancer. However, there is a notable interfamilial variability in the occurrence of pancreatic cancer among p16-Leiden families. Read More
The term "dysplastic nevus" (DN) implies that this nevus exists as a distinct and defined entity of potential detriment to its host. We examine the current data, which suggest that this entity exists as histologically and possibly genetically different from common nevus, with some overlapping features. Studies show that a melanoma associated with a nevus is just as likely to arise in a common nevus as in DN. Read More
Atypical moles are benign pigmented lesions. Although they are benign, they exhibit some of the clinical and histologic features of malignant melanoma. They are more common in fair-skinned individuals and in those with high sun exposure. Read More
J Invest Dermatol 2015 Oct 1;135(10):2544-2547. Epub 2015 Jun 1.
Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA; Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA; The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA; The Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA; The Diabetes, Obesity, and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA. Electronic address:
J Am Acad Dermatol 2015 Jun;72(6):943-58; quiz 959-60
Department of Dermatology, University of Utah Health Sciences Center, Salt Lake City, Utah; Huntsman Cancer Institute, University of Utah Health Sciences Center, Salt Lake City, Utah. Electronic address:
The criterion standard for diagnosing cutaneous melanoma continues to be histologic examination. However, classifying some melanocytic lesions by conventional microscopy can be problematic if they exhibit some architectural or morphologic characteristics of both nevus and melanoma. Moreover, histologic appearance does not always predict biologic behavior. Read More
Malignant melanoma causes the majority of deaths related to skin cancer. Nevertheless, it is the most treatable one, depending on its early diagnosis. The early prognosis is a challenging task for both clinicians and dermatologist, due to the characteristic similarities of melanoma with other skin lesions such as dysplastic nevi. Read More
Several types of maculopapular melanocytic naevi can occur in a multiple form, and be arranged in a nonrandom fashion on the skin. The most frequently reported segmentally grouped naevi are lentigines. Two types of segmentally arranged lentigines probably exist. Read More