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3.
J Am Acad Dermatol ; 78(5): 1032-1034, 2018 05.
Artículo en Inglés | MEDLINE | ID: mdl-29678377

RESUMEN

There is general agreement on what constitutes ethical reasoning and professional behavior, but standardized methods to teach these skills in dermatology residency are currently unavailable. We introduce a model curriculum designed to impart the knowledge and skills to meet the Accreditation Council for Graduate Medical Education Dermatology Milestones for Professionalism over a 3-year cycle.


Asunto(s)
Acreditación , Dermatología/educación , Educación de Postgrado en Medicina/métodos , Ética Médica/educación , Internado y Residencia/métodos , Profesionalismo/educación , Curriculum , Femenino , Humanos , Masculino , Estados Unidos
4.
Am J Clin Oncol ; 40(4): 429-432, 2017 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-25599317

RESUMEN

OBJECTIVES: Skin adnexal carcinoma (SAC) is a rare cutaneous malignancy that arises from sebaceous and sweat glands. These carcinomas are believed to behave more aggressively than cutaneous squamous cell carcinomas (SCC) with a propensity for local recurrence. The role of adjuvant radiotherapy in SAC is undefined. METHODS: We retrospectively reviewed all cases of head and neck SAC treated with surgery and adjuvant radiation from 2000 to 2012 at a single institution. RESULTS: Nine cases were identified. Median age was 67 (range, 52 to 88) years. The histologies were: adnexal carcinoma (n=1), adnexal carcinoma with sebaceous differentiation (n=1), adnexal carcinoma with squamous differentiation (n=1), skin appendage carcinoma (n=1), sclerosing sweat duct carcinoma (n=1), mucinous carcinoma (n=1), ductal eccrine adenocarcinoma (n=1), porocarcinoma (n=1), and trichilemmal carcinoma (n=1). All tumors were reviewed by a dermatopathologist to confirm the SAC diagnosis.All patients had undergone surgery. Indications for adjuvant radiation included involved lymph nodes (n=4), perineural invasion (n=2), nodal extracapsular extension (n=2), positive margin (n=1), high-grade histology (n=6), multifocal disease (n=2), and/or recurrent disease (n=5). Radiation was delivered to the primary site alone (n=3), to the draining lymphatics alone (n=2), or to both (n=4). One patient received concurrent cisplatin. Median dose to the primary site was 60 Gy and to the neck was 50 Gy.Median follow-up was 4.0 years (range, 0.6 to 11.4 y). Locoregional control was 100%. Five-year progression-free survival was 89%. There was 1 acute grade 3 toxicity and no greater than or equal to grade 2 late toxicities were recorded. CONCLUSIONS: Surgery and adjuvant radiation for high-risk SAC offers excellent locoregional control with acceptable toxicity.


Asunto(s)
Neoplasias de Cabeza y Cuello/terapia , Neoplasias de Anexos y Apéndices de Piel/terapia , Radioterapia Adyuvante/métodos , Anciano , Anciano de 80 o más Años , Terapia Combinada , Supervivencia sin Enfermedad , Fraccionamiento de la Dosis de Radiación , Femenino , Estudios de Seguimiento , Neoplasias de Cabeza y Cuello/mortalidad , Neoplasias de Cabeza y Cuello/patología , Neoplasias de Cabeza y Cuello/cirugía , Humanos , Masculino , Persona de Mediana Edad , Disección del Cuello , Recurrencia Local de Neoplasia , Neoplasias de Anexos y Apéndices de Piel/mortalidad , Neoplasias de Anexos y Apéndices de Piel/patología , Neoplasias de Anexos y Apéndices de Piel/cirugía , Estudios Retrospectivos
5.
PLoS One ; 11(5): e0155474, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27183221

RESUMEN

BACKGROUND: The U.S. Physician Payments Sunshine Act mandates the reporting of payments or items of value received by physicians from drug, medical device, and biological agent manufacturers. The impact of these payments on physician prescribing has not been examined at large scale. METHODS: We linked public Medicare Part D prescribing data and Sunshine Act data for 2013. Physician payments were examined descriptively within specialties, and then for association with prescribing costs and patterns using regression models. Models were adjusted for potential physician-level confounding features, including sex, geographic region, and practice size. RESULTS: Among 725,169 individuals with Medicare prescribing data, 341,644 had documented payments in the OPP data (47.1%). Among all physicians receiving funds, mean payment was $1750 (SD $28336); median was $138 (IQR $48-$394). Across the 12 specialties examined, a dose-response relationship was observed in which greater payments were associated with greater prescribing costs per patient. In adjusted regression models, being in the top quintile of payment receipt was associated with incremental prescribing cost per patient ranging from $27 (general surgery) to $2931 (neurology). Similar associations were observed with proportion of branded prescriptions written. CONCLUSIONS: While distribution and amount of payments differed widely across medical specialties, for each of the 12 specialties examined the receipt of payments was associated with greater prescribing costs per patient, and greater proportion of branded medication prescribing. We cannot infer a causal relationship, but interventions aimed at those physicians receiving the most payments may present an opportunity to address prescribing costs in the US.


Asunto(s)
Costos de los Medicamentos , Industria Farmacéutica , Prescripciones de Medicamentos , Medicare Part D , Médicos/economía , Costos y Análisis de Costo , Femenino , Humanos , Masculino , Medicina , Estados Unidos
6.
J Natl Compr Canc Netw ; 12(6): 863-8, 2014 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-24925197

RESUMEN

Dermatofibrosarcoma protuberans (DFSP) is an uncommon soft tissue tumor characterized by a relatively high risk of local recurrence and low risk of metastasis. The NCCN Guidelines for DFSP provide multidisciplinary recommendations on the management of patients with this rare disease. These NCCN Guidelines Insights highlight the addition of the Principles of Pathology section, which provides recommendations on the pathologic assessment of DFSP. Because DFSP can mimic other lesions, immunohistochemical studies are often required to establish diagnosis. Cytogenetic testing for the characteristic translocation t(17;22)(q22;q13) can also be valuable in the differential diagnosis of DFSP with other histologically similar tumors.


Asunto(s)
Dermatofibrosarcoma/genética , Diagnóstico Diferencial , Recurrencia Local de Neoplasia/genética , Neoplasias Cutáneas/genética , Biomarcadores de Tumor , Dermatofibrosarcoma/diagnóstico , Dermatofibrosarcoma/patología , Humanos , Metástasis de la Neoplasia , Recurrencia Local de Neoplasia/diagnóstico , Recurrencia Local de Neoplasia/patología , Neoplasias Cutáneas/diagnóstico , Neoplasias Cutáneas/patología , Translocación Genética
7.
J Natl Compr Canc Netw ; 12(3): 410-24, 2014 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-24616545

RESUMEN

Merkel cell carcinoma is a rare, aggressive cutaneous tumor that combines the local recurrence rates of infiltrative nonmelanoma skin cancer with the regional and distant metastatic rates of thick melanoma. The NCCN Guidelines for Merkel Cell Carcinoma provide recommendations on the diagnosis and management of this aggressive disease based on clinical evidence and expert consensus. This version includes revisions regarding the use of PET/CT imaging and the addition of a new section on the principles of pathology to provide guidance on the analysis, interpretation, and reporting of pathology results.


Asunto(s)
Carcinoma de Células de Merkel/diagnóstico , Carcinoma de Células de Merkel/terapia , Neoplasias Cutáneas/diagnóstico , Neoplasias Cutáneas/terapia , Humanos
8.
J Am Acad Dermatol ; 70(6): 1028-35, 2014 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-24666998

RESUMEN

BACKGROUND: Absolute lymphocyte count (ALC) is a laboratory value commonly obtained during workup of patients with Merkel cell carcinoma (MCC). OBJECTIVE: We report the prognostic impact of ALC as a surrogate of immune status in MCC. METHODS: A complete blood cell count was available for 64 patients with MCC in the month before definitive surgery, chemotherapy, or radiation. Statistical analysis was performed with classification and regression tree analysis, log rank test, and Cox model. RESULTS: Median overall survival (OS) for the cohort was 97 months. Median OS for patients with an ALC less than 1.1 k/mm(3) was 18.8 versus 110.1 months for those with ALC greater than or equal to 1.1 k/mm(3) (P = .002, hazard ratio 0.29). Multivariate analysis of OS controlling for ALC, sex, stage, adjuvant chemotherapy, hematologic malignancy, and immunosuppression demonstrated ALC as a prognostic factor (P = .03). Disease-free survival at 36 months for ALC less than 1.1 k/mm(3) was 26.9% versus 64.4% for those with ALC greater than or equal to 1.1 k/mm(3) (P = .01). ALC was not a significant predictor for disease-free survival on multivariate analysis (P = .12). LIMITATIONS: This is a single-institution retrospective data set. CONCLUSION: ALC is associated with OS but not disease-free survival in MCC using a threshold of less than 1.1 k/mm(3). This test may provide additional prognostic information for patients with MCC.


Asunto(s)
Carcinoma de Células de Merkel/sangre , Carcinoma de Células de Merkel/mortalidad , Recuento de Linfocitos , Neoplasias Cutáneas/sangre , Neoplasias Cutáneas/mortalidad , Adulto , Anciano , Anciano de 80 o más Años , Biomarcadores/sangre , Carcinoma de Células de Merkel/inmunología , Carcinoma de Células de Merkel/terapia , Estudios de Cohortes , Terapia Combinada/métodos , Supervivencia sin Enfermedad , Femenino , Humanos , Linfocitos Infiltrantes de Tumor/inmunología , Masculino , Persona de Mediana Edad , Análisis Multivariante , Invasividad Neoplásica/patología , Estadificación de Neoplasias , Pronóstico , Modelos de Riesgos Proporcionales , Análisis de Regresión , Estudios Retrospectivos , Medición de Riesgo , Neoplasias Cutáneas/inmunología , Neoplasias Cutáneas/terapia , Análisis de Supervivencia
9.
J Clin Invest ; 123(6): 2694-702, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23728175

RESUMEN

MicroRNAs (miRNAs) are excellent tumor biomarkers because of their cell-type specificity and abundance. However, many miRNA detection methods, such as real-time PCR, obliterate valuable visuospatial information in tissue samples. To enable miRNA visualization in formalin-fixed paraffin-embedded (FFPE) tissues, we developed multicolor miRNA FISH. As a proof of concept, we used this method to differentiate two skin tumors, basal cell carcinoma (BCC) and Merkel cell carcinoma (MCC), with overlapping histologic features but distinct cellular origins. Using sequencing-based miRNA profiling and discriminant analysis, we identified the tumor-specific miRNAs miR-205 and miR-375 in BCC and MCC, respectively. We addressed three major shortcomings in miRNA FISH, identifying optimal conditions for miRNA fixation and ribosomal RNA (rRNA) retention using model compounds and high-pressure liquid chromatography (HPLC) analyses, enhancing signal amplification and detection by increasing probe-hapten linker lengths, and improving probe specificity using shortened probes with minimal rRNA sequence complementarity. We validated our method on 4 BCC and 12 MCC tumors. Amplified miR-205 and miR-375 signals were normalized against directly detectable reference rRNA signals. Tumors were classified using predefined cutoff values, and all were correctly identified in blinded analysis. Our study establishes a reliable miRNA FISH technique for parallel visualization of differentially expressed miRNAs in FFPE tumor tissues.


Asunto(s)
Biomarcadores de Tumor/metabolismo , Carcinoma Basocelular/diagnóstico , Carcinoma de Células de Merkel/diagnóstico , MicroARNs/metabolismo , Neoplasias Cutáneas/diagnóstico , Animales , Biomarcadores de Tumor/genética , Carcinoma Basocelular/metabolismo , Carcinoma de Células de Merkel/metabolismo , Análisis por Conglomerados , Diagnóstico Diferencial , Fijadores/química , Colorantes Fluorescentes/química , Formaldehído/química , Expresión Génica , Humanos , Hibridación Fluorescente in Situ , Ratones , Ratones Noqueados , MicroARNs/genética , MicroARNs/aislamiento & purificación , Técnicas de Diagnóstico Molecular , Adhesión en Parafina , ARN Ribosómico 28S/metabolismo , Análisis de Secuencia de ARN , Relación Señal-Ruido , Neoplasias Cutáneas/metabolismo , Fijación del Tejido
10.
Int J Environ Res Public Health ; 9(6): 2241-51, 2012 06.
Artículo en Inglés | MEDLINE | ID: mdl-22829801

RESUMEN

Skin cancer is an increasingly common disease, particularly among young adult women. Sunburn early in life is a risk factor for skin cancer. Few studies have reported on psychosocial correlates of sunburn. The current study consisted of an online survey of undergraduate women from a university in the northeastern part of the USA. A logistic regression demonstrated that young women who reported a history of four or more sunburns were significantly more likely to report fair skin, higher perceived susceptibility to skin cancer, greater perceived benefits of tanning (e.g., appearance enhancement), lower perceived control over skin protection, and more frequent sunscreen use. Sunbathing was not associated with a greater number of sunburns. These results suggest that young women who sunburn more often possess other skin cancer risk factors, are aware of their susceptibility to skin cancer, and try to use sunscreen, but feel limited control over their skin protection behavior and are not less likely to sunbathe than others. Therefore, interventions are needed to assist high risk young women in asserting more control over their sun protection behavior and perhaps improve the effectiveness of the sunscreen or other skin protection methods they do employ.


Asunto(s)
Quemadura Solar/epidemiología , Quemadura Solar/psicología , Adolescente , Adulto , Femenino , Humanos , Modelos Logísticos , Autoeficacia , Neoplasias Cutáneas/prevención & control , Neoplasias Cutáneas/psicología , Baño de Sol , Protectores Solares/uso terapéutico , Estados Unidos/epidemiología , Adulto Joven
15.
J Natl Compr Canc Netw ; 7 Suppl 1: S5-21; quiz S22-4, 2009 May.
Artículo en Inglés | MEDLINE | ID: mdl-19470276

RESUMEN

This NCCN Task Force Report describes the management of dermatologic and ocular toxicities that occur in patients treated with epidermal growth factor receptor (EGFR) inhibitors. Task force members are from NCCN member institutions and include oncologists, dermatologists, an ophthalmologist, and a mid-level oncology provider. This report describes commonly used therapies that the task force agreed are appropriate standards of care for dermatologic and ophthalmologic toxicities associated with EGFR inhibitors, which generally are supported only by anecdotal evidence. Few recommendations are evidence based; however, some commonly used therapies have data supporting their use. Conclusions from completed clinical trials are generally limited by the small numbers of patients enrolled. The information in this report is based on available published data on treating toxicities associated with EGFR inhibitors, data from treatment of clinically similar toxicities from different etiologies, and expert opinion among the NCCN Task Force members.


Asunto(s)
Antineoplásicos/efectos adversos , Receptores ErbB/antagonistas & inhibidores , Inhibidores de Proteínas Quinasas/efectos adversos , Enfermedades de la Piel/inducido químicamente , Antineoplásicos/uso terapéutico , Oftalmopatías/inducido químicamente , Enfermedades del Cabello/inducido químicamente , Humanos , Enfermedades de la Uña/inducido químicamente , Inhibidores de Proteínas Quinasas/uso terapéutico , Piel/efectos de los fármacos
17.
J Am Acad Dermatol ; 58(4): 636-41, 2008 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-18342709

RESUMEN

Primary cutaneous adenoid cystic carcinoma is a rare, slow-growing malignancy first described by Boggio in 1975. This tumor characteristically consists of basophilic cells with a distinct adenoid or cribriform pattern in the mid to deep reticular dermis. Modified myoepithelial cells with prominent basement membrane material often surround true lumina. Definitive diagnosis relies on the characteristic histologic features and the exclusion of metastatic disease. We describe two patients who presented with painful papules of the scalp and were successfully treated with wide local excision.


Asunto(s)
Carcinoma Adenoide Quístico/ultraestructura , Neoplasias de Cabeza y Cuello/ultraestructura , Cuero Cabelludo , Neoplasias Cutáneas/ultraestructura , Anciano , Anciano de 80 o más Años , Carcinoma Adenoide Quístico/cirugía , Femenino , Neoplasias de Cabeza y Cuello/cirugía , Humanos , Masculino , Neoplasias Cutáneas/cirugía
18.
Dermatol Surg ; 33(12): 1413-8; discussion 1418, 2007 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-18076605

RESUMEN

OBJECTIVE: The purpose of this study is to better characterize the typical Mohs practice in the United States and to generate data that may be useful in future practice models. METHODS: A survey was mailed in 2004 to all 599 members of the American College of Mohs Surgery with United States addresses listed in the 2003 directory. RESULTS: Most respondents were part of a single speciality group, in a suburban or urban setting, performed between 501-1,000 cases per year, and had been in practice from 0-5 years. The vast majority of Mohs excisions are for basal cell cancers and squamous cell cancers, followed by melanoma. Primary closure is the most common method of repair, followed by the use of flaps. Only 6% of cases were referred to other specialties for closure. Many surgeons augment their practice with non-Mohs cosmetic procedures. CONCLUSION: The characteristics of current Mohs surgery practices in the United States provides useful data for training programs, potential trainees, workforce issues, statistical modeling systems, and Mohs surgeons in the evaluation of their own practices.


Asunto(s)
Cirugía de Mohs/estadística & datos numéricos , Práctica Profesional/estadística & datos numéricos , Neoplasias Cutáneas/cirugía , Encuestas de Atención de la Salud , Humanos , Sociedades Médicas , Estados Unidos/epidemiología
20.
Dermatol Surg ; 32(1): 79-83, 2006 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-16393602

RESUMEN

BACKGROUND: Despite rising medical malpractice costs, little is known about the factors associated with claims filed against Mohs surgeons. OBJECTIVE: We sought to define the scope of medical malpractice claims filed against Mohs surgeons and to identify salient factors associated with the filing and disposition of those claims. METHODS: A comprehensive survey was mailed to 599 physicians with US addresses listed in the 2003 directory of the American College of Mohs Micrographic Surgery and Cutaneous Oncology. RESULTS: Of the 300 completed surveys returned, 33 (11%) reported ever having been sued. Physicians who practiced Mohs surgery for a longer period of time were more likely to have been sued for malpractice. Physicians reported the wrong site and functional outcome as the most frequent causes of malpractice lawsuits.


Asunto(s)
Dermatología/legislación & jurisprudencia , Mala Praxis/estadística & datos numéricos , Cirugía de Mohs/legislación & jurisprudencia , Humanos , Incidencia , Responsabilidad Legal , Errores Médicos/legislación & jurisprudencia , Errores Médicos/estadística & datos numéricos , Factores de Riesgo , Estados Unidos
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