Try a new search

Format these results:

Searched for:



Total Results:


To the Editor: Patient and County-Level Factors Associated with Late Stage Merkel Cell Carcinoma at Diagnosis

Shah, Payal; Polsky, David; Shao, Yongzhao; Stein, Jennifer; Liebman, Tracey N
PMID: 35537549
ISSN: 1523-1747
CID: 5214322

A Health Equity Framework to Address Racial and Ethnic Disparities in Melanoma

Kolla, Avani M; Seixas, Azizi; Adotama, Prince; Foster, Victoria; Kwon, Simona; Li, Vivienne; Lee, Ann Y; Stein, Jennifer A; Polsky, David
PMID: 35970385
ISSN: 1097-6787
CID: 5299802

Associations between TERT promoter mutations and survival in superficial spreading and nodular melanomas in a large prospective patient cohort

Chang, Gregory A; Robinson, Eric; Wiggins, Jennifer M; Zhang, Yilong; Tadepalli, Jyothirmayee S; Schafer, Christine N; Darvishian, Farbod; Berman, Russell S; Shapiro, Richard; Shao, Yongzhao; Osman, Iman; Polsky, David
Survival outcomes in melanoma, and their association with mutations in the telomerase reverse transcriptase (TERT) promoter, remain uncertain. In addition, few studies have examined whether these associations are affected by a nearby common germline polymorphism, or vary based on melanoma histopathological subtype. We analyzed 408 primary tumors from a prospective melanoma cohort for somatic TERT-124[C>T] and TERT-146[C>T] mutations, the germline polymorphism rs2853669, and BRAFV600 and NRASQ61 mutations. We tested the associations between these variants and clinicopathologic factors and survival outcomes. TERT-124[C>T] was associated with thicker tumors, ulceration, mitoses (>0/mm2), nodular histotype and CNS involvement. In a multivariable model controlling for AJCC stage, TERT-124[C>T] was an independent predictor of shorter recurrence-free survival (RFS) (HR=2.58, p=0.001), and overall survival (HR=2.47, p=0.029). Patients with the germline variant and TERT-124[C>T] mutant melanomas had significantly shorter RFS than those patients lacking either or both sequence variants (p<0.04). The impact of the germline variant appeared to be more pronounced in superficial spreading compared to nodular melanoma. No associations were found between survival and TERT-146[C>T], BRAF or NRAS mutations. These findings strongly suggest that TERT-124[C>T] mutation is a biomarker of aggressive primary melanomas, an effect that may be modulated by rs2853669.
PMID: 35469904
ISSN: 1523-1747
CID: 5205542

Differentiating Between Lead-Time Bias and True Survival Benefits When Discussing Racial and Ethnic Disparities in Melanoma

Kolla, Avani M; Berwick, Marianne; Polsky, David
PMID: 35442387
ISSN: 2168-6084
CID: 5218332

Cell-Free DNA in Dermatology Research

Wiggins, Jennifer M; Ali, Saim; Polsky, David
In various diseases, particularly cancer, cell-free DNA (cfDNA) has been widely studied as a marker of disease prognosis or to facilitate the detection of therapeutic targets. In dermatology, most studies have focused on melanoma; other skin diseases such as vascular malformations and psoriasis have also been examined. Genetic alterations unique to the tissue of origin such as sequence variations, copy number alterations, chromosomal rearrangements, differential DNA methylation patterns, and fragmentation patterns can be identified in circulation providing information on patient disease status. These alterations can be detected either by PCR-based methods or next-generation sequencing depending on the target of interest. In this article, we discuss the origins of cfDNA, the most common methods of detection, current studies assessing cfDNA as a biomarker, and cfDNA's potential clinical applications in melanoma and other skin diseases. In addition, we provide important factors to consider during blood processing and DNA extraction as well as limitations for each assay.
PMID: 35598899
ISSN: 1523-1747
CID: 5244702

Impact of Electrical Impedance Spectroscopy on Clinician Confidence and Diagnostic Accuracy in Evaluating Melanocytic Skin Lesions Suspicious for Melanoma: A Pilot Study

Kolla, Avani; Fried, Lauren; Shah, Payal; Liebman, Tracey; Stein, Jennifer; Polsky, David
Introduction: Nevisense is a non-invasive device that measures electrical impedance spectroscopy (EIS) of individual skin lesions to aid in the diagnosis of melanoma. While EIS has demonstrated high sensitivity in diagnosing melanoma, its impact on a clinician"™s diagnostic confi dence remains unknown. Objective: To conduct a pilot study to evaluate whether clinician diagnostic confidence, sensitivity, specificity and accuracy can be increased by adding EIS measurement scores to clinical and dermoscopic images of lesions clinically suspicious for melanoma. Methods: Three pigmented lesions specialists and three 4th year medical students completed an online survey to evaluate 34 melanocytic lesions suspicious for melanoma. For each lesion, participants provided their diagnosis, biopsy recommendation, and confidence in diagnosing a lesion as benign or malignant based on history and clinical and dermoscopic images, and again after receiving an EIS score. Results: Addition of EIS scores increased mean biopsy sensitivity for melanoma/severely dysplastic nevi from 70% to 84% (p =.014) and mean diagnostic accuracy from 74% to 86% (p =.005). Mean diagnostic confidence increased for all histopathologic categories for both students and dermatologists (all p <.05). Conclusions: In this pilot study, EIS increased novice and expert diagnosticians"™ confidence regarding dermoscopically equivocal melanocytic lesions. Further studies are needed to explore how EIS can help clinicians reassure patients regarding the management of clinically dysplastic melanocytic nevi.
ISSN: 2574-1624
CID: 5311802

Melanoma surveillance for high-risk patients via telemedicine: Examination of real-world data from an integrated store-and-forward total body photography and dermoscopy service

Tan, Andrea; Greenwald, Elizabeth; Bajaj, Shirin; Belen, Debbie; Sheridan, Taylor; Stein, Jennifer A; Liebman, Tracey N; Bowling, Adrian; Polsky, David
PMID: 33515626
ISSN: 1097-6787
CID: 4775632

Real world outcomes of melanoma surveillance using the MoleMap NZ telemedicine platform

Greenwald, Elizabeth; Tan, Andrea; Stein, Jennifer A; Liebman, Tracey N; Bowling, Adrian; Polsky, David
BACKGROUND:MoleMap NZ is a novel New Zealand based store-and-forward telemedicine service to detect melanoma. It utilizes expert review of total body photography and close-up and dermoscopic images of skin lesions suspicious for malignancy. OBJECTIVE:The purpose of this study was to assess the effectiveness of MoleMap NZ as a melanoma early detection program. METHODS:We conducted a review of 2,108 melanocytic lesions recommended for biopsy/excision by MoleMap NZ dermoscopists from January 2015-December 2016. RESULTS:Pathologic diagnoses were available for 1,571 lesions. Of these, 1,303 (83%) lesions were benign and 260 (17%) lesions were diagnosed as melanoma, for a melanoma-specific benign-to-malignant ratio of 5.0 to 1. The number-needed-to-biopsy one melanoma was 6. Among melanomas with available tumor thickness data (n=137), 92% were <0.8mm (range: in situ - 3.1mm), with in-situ melanomas comprising 74%. LIMITATIONS/CONCLUSIONS:Only lesions recommended for excision were analyzed. Pathology results were available for 75% of these cases. Tumor thickness data was available for 53% of melanomas diagnosed. CONCLUSION/CONCLUSIONS:This real-world study of MoleMap NZ, a community-based teledermoscopy program, suggests that it has the potential to increase patients' access to specialist expertise via telemedicine. Additional studies are needed to more accurately define its efficacy.
PMID: 32114083
ISSN: 1097-6787
CID: 4340382

Late stage melanoma in New York State: associations with socioeconomic factors and healthcare access at the county level

Shah, Payal; Shao, Yongzhao; Geller, Alan C; Polsky, David
A diagnosis of late stage melanoma is associated with significant mortality. From a public health perspective, knowledge of geographic disparities in late-stage diagnoses can inform efforts to facilitate the diagnosis of earlier stage, highly curable melanomas. We conducted a county-level analysis of melanoma in New York State to identify communities that may benefit from pilot health interventions to reduce the burden of late stage melanoma. From 1995 to 2016, late-stage melanoma incidence increased from 1.5 to 2.8 cases/100,000 in NY State. We found statistically significant associations between decreased county-level health system access (including physician density and resident educational status), and increased county incidence and proportion of late-stage disease among diagnosed cases (p<0.001 for both). Increased county-level socioeconomic status (SES), (including measures of resident wealth and medical insurance status), was positively associated with greater late-stage incidence (p<0.001). However, decreased county-level SES was positively associated with a greater proportion of late-stage disease among cases at diagnosis (p=0.009). Counties with reduced access to physician services and lower SES may be suitable for pilot interventions promoting recognition and diagnosis of early stage melanomas to reduce late stage diagnoses and associated mortality.
PMID: 33516743
ISSN: 1523-1747
CID: 4775702

Melanoma origins: data from early-stage tumours supports de novo and naevus-associated melanomas as distinct subtypes

Wiggins, J; Polsky, D
PMID: 34114232
ISSN: 1365-2133
CID: 4936702