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BACKGROUND: Mohs micrographic surgery (MMS) is a promising treatment modality for melanoma in situ (MIS). However, variations in surgical technique limit the generalizability of existing data and may impede future study of MMS in clinical trials. METHODS: A modified Delphi method was selected to establish consensus on optimal MMS techniques for treating MIS in future clinical trials. The Delphi method was selected due to the limited current data, the wide range of techniques used in the field, and the intention to establish a standardized technique for future clinical trials. A literature review and interviews with experienced MMS surgeons were performed to identify dimensions of the MMS technique for MIS that (1) likely impacted costs or outcomes of the procedure, and (2) showed significant variability between surgeons. A total of 8 dimensions of technical variation were selected. The Delphi process consisted of 2 rounds of voting and commentary, during which 44 expert Mohs surgeons across the United States rated their agreement with specific recommendations using a Likert scale. RESULTS: Five of eight recommendations achieved consensus in Round 1. All 3 of the remaining recommendations achieved consensus in Round 2. Techniques achieving consensus in Round 1 included the use of a starting peripheral margin of ≤5 mm, application of immunohistochemistry, frozen tissue processing, and resecting to the depth of subcutaneous fat. Consensus on the use of Wood's lamp, dermatoscope, and negative tissue controls was established in Round 2. CONCLUSIONS: This study generated 8 consensus recommendations intended to offer guidance for Mohs surgeons treating MIS. The adoption of these recommendations will promote standardization to facilitate comparisons of aggregate data in multicenter clinical trials.
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BACKGROUND: Amid a movement toward value-based healthcare, increasing emphasis has been placed on outcomes and cost of medical services. To define and demonstrate the quality of services provided by Mohs surgeons, it is important to identify and understand the key aspects of Mohs micrographic surgery (MMS) that contribute to excellence in patient care. OBJECTIVE: The purpose of this study is to develop and identify a comprehensive list of metrics in an initial effort to define excellence in MMS. METHODS: Mohs surgeons participated in a modified Delphi process to reach a consensus on a list of metrics. Patients were administered surveys to gather patient perspectives. RESULTS: Twenty-four of the original 66 metrics met final inclusion criteria. Broad support for the initiative was obtained through physician feedback. LIMITATIONS: Limitations of this study include attrition bias across survey rounds and participation at the consensus meeting. Furthermore, the list of metrics is based on expert consensus instead of quality evidence-based outcomes. CONCLUSION: With the goal of identifying metrics that demonstrate excellence in performance of MMS, this initial effort has shown that Mohs surgeons and patients have unique perspectives and can be engaged in a data-driven approach to help define excellence in the field of MMS.
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Neoplasias Cutáneas , Cirujanos , Humanos , Neoplasias Cutáneas/cirugía , Cirugía de Mohs , Consenso , BenchmarkingRESUMEN
BACKGROUND: Although advances have been made in the understanding of recurrence patterns in dermatofibrosarcoma protuberans, the current understanding of disease-specific mortality after surgical management is limited. OBJECTIVE: To understand disease-specific mortality rates associated with dermatofibrosarcoma protuberans treated with wide local excision (WLE) versus Mohs micrographic surgery (MMS). MATERIALS AND METHODS: A systematic literature search was conducted on March 6, 2023, to identify patients treated with MMS or WLE for dermatofibrosarcoma protuberans. RESULTS: A total of 136 studies met inclusion criteria. Overall, the disease-specific mortality rate was not significantly different after treatment with MMS (0.7%, confidence interval [CI] 0.1-1.2, p : 0.016) versus WLE (0.9%, CI 0.6-1.2, p < .001). For recurrent tumors, the MMS treatment group had a statistically significantly lower disease-specific mortality rate (1.0%, CI 0.0-2.0, p 0.046) compared with the WLE treatment group (3.5%, CI 2.0-5.1, p < .001). The mean follow-up for all studies was 57.6 months. CONCLUSION AND RELEVANCE: The authors' meta-analysis suggests there is no substantial difference in disease-specific mortality between MMS and WLE in patients with dermatofibrosarcoma protuberans, except in the case of recurrent tumors, where MMS seems to confer a survival advantage.
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Dermatofibrosarcoma , Cirugía de Mohs , Recurrencia Local de Neoplasia , Neoplasias Cutáneas , Dermatofibrosarcoma/cirugía , Dermatofibrosarcoma/mortalidad , Dermatofibrosarcoma/patología , Humanos , Neoplasias Cutáneas/cirugía , Neoplasias Cutáneas/mortalidad , Neoplasias Cutáneas/patología , Recurrencia Local de Neoplasia/mortalidadRESUMEN
BACKGROUND AND OBJECTIVES: The prognosis of patients diagnosed with melanoma is highly dependent on staging, early detection, and early intervention. In this systematic review, the authors aimed to investigate the impact of surgical delay (time between diagnostic biopsy and definitive surgical excision) on melanoma-specific outcomes. MATERIAL AND METHODS: A systematic review was conducted from Embase (1974-present), MEDLINE (1946-present), Cochrane Central Register of Controlled Trials (2005-present), Scopus, and Web of Science. A total of 977 studies were included for review after removal of duplicates. A total of 10 studies were included for final analysis. RESULTS: In total, 70% (7/10) of the studies found that longer wait times between initial biopsy and surgical intervention are correlated with lower overall survival. Among the 9 studies that reported overall survival as a percentage, the median and SD overall survival was 82% ± 5.87. CONCLUSION: There is evidence that prolonged surgical delay in patients diagnosed with Stage I cutaneous melanoma is associated with worsened overall mortality, whereas the effect of surgical delay on overall mortality in Stages II and III melanomas is uncertain. Future prospective studies and randomized clinical trials are needed to better define the appropriate surgical wait times between biopsy and surgical treatment.
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Melanoma , Neoplasias Cutáneas , Tiempo de Tratamiento , Humanos , Melanoma/cirugía , Melanoma/patología , Melanoma/mortalidad , Neoplasias Cutáneas/cirugía , Neoplasias Cutáneas/patología , Neoplasias Cutáneas/mortalidad , Tiempo de Tratamiento/estadística & datos numéricos , Estadificación de Neoplasias , Pronóstico , Biopsia , Factores de Tiempo , Tasa de SupervivenciaRESUMEN
BACKGROUND: Mohs micrographic surgery (MMS) is increasingly used to treat cutaneous melanoma. However, it is unclear whether intraoperative immunohistochemistry (IHC) improves surgical outcomes. OBJECTIVE: To determine whether intraoperative IHC during MMS and staged excision is associated with a decreased risk of poor surgical outcomes. MATERIALS AND METHODS: Search of 6 databases identified comparative and noncomparative studies that reported local recurrence after MMS or staged excision with or without IHC for melanoma. Random-effects meta-analysis was used to estimate pooled local recurrence rates, nodal recurrence, distant recurrence, and disease-specific mortality. RESULTS: Overall, 57 studies representing 12,043 patients with cutaneous melanoma and 12,590 tumors met inclusion criteria. Combined MMS and staged excision with IHC was associated with decreased local recurrence in patients with invasive melanoma (0.3%, 95% CI: 0-0.6) versus hematoxylin and eosin alone (1.8%, 95% CI: 0.8%-2.8%) [ p < .001]. Secondary outcomes including nodal recurrence, distant recurrence, and disease-specific mortality were not significantly different between these 2 groups. Study heterogeneity was moderately-high. CONCLUSION: Local recurrence of invasive melanoma is significantly lower after MMS and staged excision with IHC as opposed to without IHC. These findings suggest that the use of intraoperative IHC during MMS or staged excision should strongly be considered, particularly for invasive melanoma.Trial Registration PROSPERO Identifier: CRD42023435630.
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Inmunohistoquímica , Melanoma , Cirugía de Mohs , Recurrencia Local de Neoplasia , Neoplasias Cutáneas , Humanos , Neoplasias Cutáneas/cirugía , Neoplasias Cutáneas/patología , Neoplasias Cutáneas/mortalidad , Melanoma/cirugía , Melanoma/patología , Melanoma/mortalidad , Recurrencia Local de Neoplasia/prevención & control , Recurrencia Local de Neoplasia/epidemiología , Recurrencia Local de Neoplasia/patología , Invasividad Neoplásica , Cuidados Intraoperatorios/métodosRESUMEN
BACKGROUND AND OBJECTIVE: Primary cutaneous melanoma incidence is increasing in elderly individuals. This population-based cohort examines incidence and mortality rates among adults aged 61 years and older with cutaneous melanoma. MATERIALS AND METHODS: Using the Rochester Epidemiology Project, patients aged 61 years of age or older with a first lifetime diagnosis of cutaneous melanoma between January 1, 1970 and December 31, 2020 were identified. RESULTS: The age- and sex-adjusted incidence rate increased from 16.4 (95% CI, 8.2-24.6) per 100,000 person-years in 1970 to 1979 to 201.5 (95% CI, 185.1-217.8) per 100,000 person-years in 2011 to 2020 (12.3-fold increase). There was a 16.0x increase in males and an 8.5× increase in females. Melanoma incidence has stabilized in males (1.2-fold increase, p = .11) and continues to significantly increase in females (2.7-fold increase, p < .001). Older age at diagnosis was significantly associated with an increased risk of death (HR 1.23 per 5-year increase in age at diagnosis, 95% CI, 1.02-1.47). CONCLUSION: Melanoma incidence continues to increase since 1970. The incidence has risen in elderly females, but has stabilized in males. Mortality has decreased throughout this period.
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Melanoma , Neoplasias Cutáneas , Adulto , Anciano , Masculino , Femenino , Humanos , Persona de Mediana Edad , Melanoma/epidemiología , Neoplasias Cutáneas/epidemiología , Incidencia , Minnesota/epidemiología , Estudios EpidemiológicosRESUMEN
BACKGROUND: Extramammary Paget's disease recurs often after traditional surgical excision. Margin-controlled surgery improves the recurrence rate for male genital disease but is less studied for female anatomy. OBJECTIVE: This study aimed to compare surgical and oncologic outcomes of margin-controlled surgery vs traditional surgical excision for female genital Paget's disease. STUDY DESIGN: We conducted a prospective observational trial of patients with vulvar or perianal Paget's disease treated with surgical excision guided by Mohs micrographic surgery between 2018 and 2022. The multidisciplinary protocol consisted of office-based scouting biopsies and modified Mohs surgery followed by surgical excision with wound closure under general anesthesia. Modified Mohs surgery cleared peripheral disease margins using a moat technique with cytokeratin 7 staining. Medial disease margins (the clitoris, urethra, vagina, and anus) were assessed using a hybrid of Mohs surgery and intraoperative frozen sections. Surgical and oncologic outcomes were compared with the outcomes of a retrospective cohort of patients who underwent traditional surgical excision. The primary outcome was 3-year recurrence-free survival. RESULTS: Three-year recurrence-free survival was 93.3% for Mohs-guided excision (n=24; 95% confidence interval, 81.5%-100.0%) compared to 65.9% for traditional excision (n=63; 95% confidence interval, 54.2%-80.0%) (P=.04). The maximum diameter of the excisional specimen was similar between groups (median, 11.3 vs 9.5 cm; P=.17), but complex reconstructive procedures were more common with the Mohs-guided approach (66.7% vs 30.2%; P<.01). Peripheral margin clearance was universally achieved with modified Mohs surgery, but positive medial margins were noted in 9 patients. Reasons included intentional organ sparing and poor performance of intraoperative hematoxylin and eosin frozen sections without cytokeratin 7. Grade 3 or higher postoperative complications were rare (0.0% for Mohs-guided excision vs 2.4% for traditional excision; P=.99). CONCLUSION: Margin control with modified Mohs surgery significantly improved short-term recurrence-free survival after surgical excision for female genital Paget's disease. Use on medial anatomic structures (the clitoris, urethra, vagina, and anus) is challenging, and further optimization is needed for margin control in these areas. Mohs-guided surgical excision requires specialized, collaborative care and may be best accomplished at designated referral centers.
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Enfermedades de los Genitales Femeninos , Cirugía de Mohs , Femenino , Humanos , Masculino , Biopsia , Queratina-7 , Márgenes de Escisión , Recurrencia Local de Neoplasia , Vagina , Estudios ProspectivosRESUMEN
BACKGROUND: Extramammary Paget disease (EMPD) is a rare, slow growing neoplasm that presents most commonly in the anogenital region of older adults. OBJECTIVE: To analyze the difference in local recurrence rates of EMPD in patients treated with wide local excision (WLE) versus Mohs micrographic surgery (MMS). MATERIALS AND METHODS: A systematic review of the literature and meta-analysis were performed. Inclusion criteria were adults greater than 18 years of age with a diagnosis of EMPD who have undergone surgical intervention and had follow-up data. Studies were independently reviewed by 2 coinvestigators with discrepancies resolved by the principal investigator. RESULTS: Twenty-seven studies met the inclusion criteria. Patients had a 2.67 times higher chance of local recurrence after WLE than MMS (95% confidence interval [CI]:1.47, 4.85; p = .001). Meta-analysis of single-arm studies revealed a 7.3% local recurrence rate after MMS (95% CI: 0.039, 0.107; p < .001) versus a 26.3% recurrence rate after WLE (95% CI: 0.149, 0.376; p < .001). After excluding recurrent tumors, the odds ratio for recurrence in WLE versus MMS was 2.3 (95% CI: 0.285, 18.43, p = .435). CONCLUSION: There is a clinically and statistically increased risk of local recurrence of EMPD after WLE compared with MMS.
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Enfermedad de Paget Extramamaria , Neoplasias Cutáneas , Humanos , Anciano , Cirugía de Mohs , Enfermedad de Paget Extramamaria/cirugía , Enfermedad de Paget Extramamaria/patología , Recurrencia Local de Neoplasia/cirugía , Estudios Retrospectivos , Neoplasias Cutáneas/cirugía , Neoplasias Cutáneas/patologíaRESUMEN
BACKGROUND: Current consensus guidelines have discouraged the use of sub-0.5-cm (in situ) and sub-1-cm (invasive) margins when performing Mohs micrographic surgery (Mohs) for melanoma, with minimal evidence to guide this recommendation. OBJECTIVE: To compare melanoma local recurrence rates after Mohs based on initial margin size. MATERIALS AND METHODS: A systematic review and meta-analysis was conducted with search terms including Mohs micrographic surgery, surgical margin, recurrent disease, and melanoma. RESULTS: Forty-three studies were included. The 5- to 10-mm margin category had a statistically significant lower local recurrence compared with 1- to 5-mm and 5-mm categories. Recurrence for 1- to 5-mm, 5-mm, 5- to 10-mm, and 10-mm categories were 2.3% (CI 0.8-3.5, p < .001), 1.4% (CI 0.6-2.2, p < .001), 0.3% (CI 0.2-0.5, p < .001), and 6.1% (CI -6.7 - 18.8, p = .349), respectively. Number of stages for 1 to 5, 5, 5 to 10, and 10-mm categories were 1.8, 1.8, 1.6, and 1.6, respectively. There was no statistically significant difference between the groups (p = .694). CONCLUSION: Five- to 10-mm margins were associated with the lowest local recurrence rates. A 5- to 10-mm initial margin should be considered where other factors (tumor characteristics, anatomical or functional considerations) allow.
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Melanoma , Neoplasias Cutáneas , Humanos , Cirugía de Mohs , Melanoma/cirugía , Melanoma/patología , Neoplasias Cutáneas/cirugía , Neoplasias Cutáneas/patología , Márgenes de Escisión , Recurrencia Local de Neoplasia/cirugía , Melanoma Cutáneo MalignoRESUMEN
BACKGROUND: Dermatofibrosarcoma protuberans (DFSP) is a locally aggressive tumor with a low rate of metastatic disease. Previous series have shown a superiority of Mohs micrographic surgery (MMS) compared with wide local excision (WLE). Likewise, there is paucity of data examining the long-term follow-up of patients. OBJECTIVE: The purpose of the current study was to examine the outcome of surgical treatment of primary DFSP of the trunk and extremities. METHODS: We reviewed 236 patients (115 females, 121 males, mean age 41 ± 15 years) undergoing MMS (n = 81, 34%) or WLE (n = 155, 66%) to treat a primary DFSP. Mean tumor size and follow-up was 4 ± 2 cm and 7 years, respectively. Final margins were negative in 230 (97%) patients. RESULTS: There was no difference (p > 0.05) in patient age, sex, tumor size, negative margin excision, or history of a previous inadvertent excision between patients who underwent WLE and those undergoing MMS. There were two cases of local recurrence and two cases of metastasis, with no difference in the 5-year local recurrence-free survival (98% vs. 99%, p = 0.69) or metastatic-free survival (98% vs. 100%, p= 0.27) between WLE and MMS. CONCLUSION: There was no difference in oncologic outcome comparing MMS with WLE for DFSP outside the head and neck. The goal of treatment for DFSP is to achieve a negative margin, regardless of surgical treatment modalities. A 'less is more' approach to follow-up can likely be taken for patients with completely resected DFSP in easy-to-examine anatomical areas. In these patients, no formal follow-up should be required.
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Dermatofibrosarcoma , Neoplasias Cutáneas , Masculino , Femenino , Humanos , Adulto , Persona de Mediana Edad , Dermatofibrosarcoma/cirugía , Dermatofibrosarcoma/patología , Estudios Retrospectivos , Neoplasias Cutáneas/cirugía , Neoplasias Cutáneas/patología , Recurrencia Local de Neoplasia/cirugía , Recurrencia Local de Neoplasia/patología , Márgenes de Escisión , Resultado del Tratamiento , Estudios Multicéntricos como AsuntoRESUMEN
BACKGROUND: Merkel cell carcinoma (MCC) is a rare, aggressive cutaneous malignancy that usually occurs in the head/neck or extremities. However, there are reports of MCC developing in the lymph nodes or parotid gland without evidence of a primary cutaneous lesion. METHODS: We reviewed 415 patients with biopsy-proven MCC. Patients with MCC of unknown primary (n = 37, 9%, MCCUP) made up the study cohort. The primary endpoints of the study were rate of recurrence, disease-free survival, and overall survival. RESULTS: Patients with MCCUP presented with tumors in lymph nodes (n = 34) or parotid gland (n = 3). Nodal disease was most commonly detected in the inguinal/external iliac (n = 15) or axillary (n = 14) regions. The mean age at diagnosis was 70 years and 24% were female. Patients presented with distant metastases in 24.3% of cases. Patients with stage IIIA disease treated with regional lymph node dissection (RLND) had a lower risk of disease recurrence (hazard ratio 0.26, p = 0.046). Recurrence-free survival was 59.3% at 5 years. Disease-specific survival was 63.3% at 5 years. CONCLUSION: Patients with MCCUP have a high risk of recurrence and mortality. The optimal treatment for MCCUP has yet to be elucidated, although therapeutic RLND appears beneficial for these patients.
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Carcinoma de Células de Merkel , Neoplasias Primarias Desconocidas , Neoplasias Cutáneas , Carcinoma de Células de Merkel/cirugía , Femenino , Humanos , Ganglios Linfáticos/patología , Masculino , Recurrencia Local de Neoplasia/patología , Neoplasias Primarias Desconocidas/patología , Neoplasias Primarias Desconocidas/terapia , Pronóstico , Estudios Retrospectivos , Neoplasias Cutáneas/patología , Neoplasias Cutáneas/cirugíaRESUMEN
BACKGROUND: Squamous cell carcinoma in situ (SCCIS) and squamous cell carcinoma (SCC) are prevalent conditions that are increasing in incidence worldwide. Many nonexcisional treatments are commonly used, but the efficacy of these treatments has not been well delineated. OBJECTIVES: To examine the recurrence rates of SCCIS and SCC treated with nonexcisional treatment modalities. METHODS: A systematic review and meta-analysis were performed for SCCIS and SCC treated with 5-fluorouracil, imiquimod, electrodessication, curettage, photodynamic therapy, ablative lasers, or cryotherapy. RESULTS: We included 186 studies describing the treatment of 9336 tumors. The recurrence rates of SCC and SCCIS following electrodessication with curettage (2.0%; 95% CI, 1.1-3.0) or following cryotherapy with curettage (1.6%; 95% CI, 0.4-2.8) were lower than those of SCC and SCCIS managed with other treatments, such as photodynamic therapy (29.0%; 95% CI, 25.0-33.0), 5-fluorouracil (26.6%; 95% CI, 16.9-36.4), or imiquimod (16.1%; 95% CI, 10.3-21.8). LIMITATIONS: The limitations included a publication bias in mostly observational data and heterogeneity of treatment regimens. CONCLUSIONS: Electrodessication and cryotherapy, in combination with curettage, are more effective than photodynamic therapy, 5-fluorouracil, or imiquimod in treating SCCIS and SCC.
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Carcinoma in Situ , Carcinoma de Células Escamosas , Neoplasias Cutáneas , Carcinoma in Situ/patología , Carcinoma in Situ/terapia , Carcinoma de Células Escamosas/patología , Carcinoma de Células Escamosas/terapia , Fluorouracilo/uso terapéutico , Humanos , Imiquimod/uso terapéutico , Neoplasias Cutáneas/patología , Neoplasias Cutáneas/terapiaRESUMEN
BACKGROUND: The role of adjuvant radiotherapy for high-risk cutaneous squamous cell carcinomas after surgery with negative margins is unclear. OBJECTIVE: To conduct a systematic review and meta-analysis examining the risk of poor outcomes for patients treated with surgery alone versus surgery and adjuvant radiotherapy. METHODS: A comprehensive search of articles was executed in PubMed, Embase, and the Cochrane Database. Random-effected meta-analyses were conducted. RESULTS: Thirty-three studies comprising 3867 high-risk cutaneous squamous cell carcinomas were included. There were no statistically significant differences in poor outcomes between the surgery only group and surgery with adjuvant radiotherapy group. Estimates for local recurrence for the surgery alone group versus the surgery with adjuvant radiotherapy group were 15.2% (95% confidence interval [CI], 6.3%-27%) versus 8.8% (95% CI, 1.6%-20.9%); for regional metastases, 11.5% (95% CI, 7.2%-16.7%) versus 4.4% (95% CI, 0%-18%); for distant metastases, 2.6% (95% CI, 0.6%-6%) versus 1.7% (95% CI, 0.2%-4.5%); and for disease-specific deaths, 8.2% (95% CI, 1.2%-20.6%) versus 19.7% (95% CI, 3.8%-43.7%), respectively. LIMITATIONS: Retrospective nature of most studies with the lack of sufficient patient-specific data. CONCLUSIONS: For patients with high-risk cutaneous squamous cell carcinomas treated with margin-negative resection, there were no significant differences in poor outcomes between the surgery only group and the surgery with adjuvant radiotherapy group. Randomized controlled trials are necessary to define the benefit of adjuvant radiotherapy in this setting.
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Carcinoma de Células Escamosas , Neoplasias Cutáneas , Carcinoma de Células Escamosas/patología , Carcinoma de Células Escamosas/radioterapia , Carcinoma de Células Escamosas/cirugía , Humanos , Márgenes de Escisión , Radioterapia Adyuvante , Estudios Retrospectivos , Neoplasias Cutáneas/patología , Neoplasias Cutáneas/radioterapia , Neoplasias Cutáneas/cirugíaRESUMEN
BACKGROUND: There is variation in the outcomes reported in clinical studies of basal cell carcinoma. This can prevent effective meta-analyses from answering important clinical questions. OBJECTIVE: To identify a recommended minimum set of core outcomes for basal cell carcinoma clinical trials. METHODS: Patient and professional Delphi process to cull a long list, culminating in a consensus meeting. To be provisionally accepted, outcomes needed to be deemed important (score, 7-9, with 9 being the maximum) by 70% of each stakeholder group. RESULTS: Two hundred thirty-five candidate outcomes identified via a systematic literature review and survey of key stakeholders were reduced to 74 that were rated by 100 health care professionals and patients in 2 Delphi rounds. Twenty-seven outcomes were provisionally accepted. The final core set of 5 agreed-upon outcomes after the consensus meeting included complete response; persistent or serious adverse events; recurrence-free survival; quality of life; and patient satisfaction, including cosmetic outcome. LIMITATIONS: English-speaking patients and professionals rated outcomes extracted from English language studies. CONCLUSION: A core outcome set for basal cell carcinoma has been developed. The use of relevant measures may improve the utility of clinical research and the quality of therapeutic guidance available to clinicians.
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Carcinoma Basocelular , Neoplasias Cutáneas , Carcinoma Basocelular/terapia , Técnica Delphi , Humanos , Calidad de Vida , Proyectos de Investigación , Neoplasias Cutáneas/terapia , Resultado del TratamientoRESUMEN
BACKGROUND: Cutaneous melanoma is strongly associated with tanning bed use. OBJECTIVE: To describe local residents' knowledge, attitudes, and behavior regarding skin cancer and tanning bed use and to estimate prevalence of high risk for melanoma. MATERIALS AND METHODS: A survey was mailed to 886 local residents (549, aged 18-39 years; 337, aged ≥40 years). Logistic and linear regression and univariate and multivariable analysis were used to assess perceived risk and skin cancer knowledge. RESULTS: The response rate was 21%; 55% of the younger group and 37% of the older group had used indoor tanning, and prevalence of high risk for melanoma according to a skin cancer risk calculator was 18% in the younger group and 33% in the older group. Individuals with high risk scores were more likely to correctly perceive that they were at high risk for skin cancer. Most participants with high risk scores and those who previously used tanning beds reported low likelihood of future indoor tanning. CONCLUSION: Female sex, high risk score, and previous indoor tanning were associated with participants' views of higher skin cancer risk. No specific knowledge gaps were identified. Understanding community residents' attitudes about skin cancer and indoor tanning can help guide interventions.
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Conocimientos, Actitudes y Práctica en Salud , Melanoma/prevención & control , Neoplasias Cutáneas/prevención & control , Baño de Sol/estadística & datos numéricos , Rayos Ultravioleta/efectos adversos , Adolescente , Adulto , Femenino , Humanos , Masculino , Melanoma/epidemiología , Melanoma/etiología , Minnesota/epidemiología , Factores de Riesgo , Piel/efectos de la radiación , Neoplasias Cutáneas/epidemiología , Neoplasias Cutáneas/etiología , Baño de Sol/psicología , Adulto JovenRESUMEN
BACKGROUND: Complete removal of melanoma is a primary goal of excision, and local recurrence is one measure to evaluate the efficacy of surgical technique. OBJECTIVE: To compare published local recurrence rates for melanoma treated with Mohs micrographic surgery (MMS) or staged excision versus wide local excision (WLE). METHODS AND MATERIALS: Search of 6 databases identified comparative and noncomparative studies that reported local recurrence rates after MMS, staged excision, or WLE for melanoma. Random-effects meta-analysis was used to estimate odds ratios and 95% confidence interval (CI) from comparative studies and event rates from noncomparative studies. RESULTS: Of the 71 studies included (16,575 patients), 12 were comparative studies (2,683 patients) and 56 were noncomparative studies (13,698 patients). Comparative studies showed increased recurrence after WLE compared with MMS or staged excision (odds ratio [OR], 2.5; 95% CI, 1.4-4.6) and compared with MMS alone (OR, 3.3; 95% CI, 1.8-5.9). Pooled data from comparative and noncomparative studies showed a local recurrence rate of 7% after WLE (95% CI, 5%-11%), 3% after staged excision (95% CI, 2%-4%), and less than 1% after MMS (95% CI, 0%-1%). Statistical heterogeneity was moderate to high. CONCLUSION: Local recurrence of melanoma is significantly lower after MMS (<1%) and staged excision (3%) compared with WLE (7%).
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Melanoma , Neoplasias Cutáneas , Bases de Datos Factuales , Humanos , Melanoma/cirugía , Cirugía de Mohs/métodos , Recurrencia Local de Neoplasia/epidemiología , Recurrencia Local de Neoplasia/cirugía , Estudios Retrospectivos , Neoplasias Cutáneas/cirugíaRESUMEN
BACKGROUND: Local recurrence (LR) rates of dermatofibrosarcoma protuberans (DFSP) treated with different surgical modalities are unknown. OBJECTIVE: To evaluate the differences in LR rates of DFSP treated with wide local excision (WLE) versus Mohs micrographic surgery (MMS). MATERIALS AND METHODS: Pertinent studies of DFSP treated with either WLE or MMS were identified through a search of multiple databases, including Ovid MEDLINE (1946-2018), Embase (1988-2018), Web of Science (1975-2018), and Scopus (1970-2018). Comparative 2-arm and noncomparative single-arm studies were assessed through meta-analyses. RESULTS: Of the 517 studies identified, 88 met inclusion criteria (12 comparative studies; 76 single-arm studies). In the 12 comparative studies, 352 patients with DFSP underwent MMS and 777 patients with DFSP underwent WLE. The LR rate was 1.7% after MMS and 3.7% after WLE (odds ratio, 1.549; 95% CI, 0.710-3.381; p = .27). In the 76 noncomparative studies, 980 patients underwent MMS (LR rate, 1.5%; 95% CI, 0.9%-2.1%; p < .001), and 2,215 patients underwent WLE (LR rate, 9.4%; 95% CI, 7.5%-11.3%; p < .001). CONCLUSION: The LR rate of DFSP in patients treated with MMS is lower than in patients treated with WLE. Because of high rates of postoperative DFSP LR, MMS should be strongly considered when available.
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Dermatofibrosarcoma , Neoplasias Cutáneas , Bases de Datos Factuales , Dermatofibrosarcoma/cirugía , Humanos , Cirugía de Mohs/efectos adversos , Recurrencia Local de Neoplasia/epidemiología , Recurrencia Local de Neoplasia/cirugía , Estudios Retrospectivos , Neoplasias Cutáneas/cirugíaRESUMEN
BACKGROUND: Limited data exist on sentinel lymph node biopsy (SLNB) for cutaneous squamous cell carcinoma (cSCC) of the head and neck. OBJECTIVE: To review the results of SLNB for patients with cSCC of the head and neck at the authors' institution. MATERIALS AND METHODS: A retrospective review was completed for patients who underwent SLNB for cSCC of the head and neck over 19 years. Patient demographics, immune status, tumor stage, total patients with positive SLNB, local recurrence, nodal recurrence, in-transit metastasis, and disease-specific death were recorded. RESULTS: Sixty patients underwent lymphoscintigraphy, and an SLN was identified in 58 patients. The mean follow-up was 3.2 years (range, 15 days-16 years). Four patients (6.9%) had a positive SLNB. All were Brigham and Women's Hospital (BWH) stage T2b tumors. Three of these patients were immunosuppressed, 3 patients underwent neck dissection, and 2 patients received adjuvant radiation. None developed local or regional recurrence. Of the 53 patients with a negative SLNB, there were 4 local recurrences, 2 in-transit metastases, and no nodal recurrences. CONCLUSION: Immunosuppressed patients with tumors BWH stage T2b or greater may be a reasonable cohort to focus future prospective studies on the utility of SLNB in cSCC of the head and neck.
Asunto(s)
Carcinoma de Células Escamosas , Neoplasias de Cabeza y Cuello , Neoplasias Cutáneas , Adulto , Carcinoma de Células Escamosas/patología , Carcinoma de Células Escamosas/cirugía , Neoplasias de Cabeza y Cuello/patología , Neoplasias de Cabeza y Cuello/cirugía , Humanos , Ganglios Linfáticos/patología , Estudios Prospectivos , Recurrencia , Estudios Retrospectivos , Biopsia del Ganglio Linfático Centinela , Neoplasias Cutáneas/patología , Neoplasias Cutáneas/cirugía , Carcinoma de Células Escamosas de Cabeza y Cuello/cirugíaRESUMEN
BACKGROUND: Prospective trials have not compared the local recurrence rates of different excision techniques for cutaneous melanomas on the head and neck. OBJECTIVE: To determine local recurrence rates of cutaneous head and neck melanoma after wide local excision (WLE), Mohs micrographic surgery (MMS), or staged excision. METHODS: A systematic review of PubMed, EMBASE, and Web of Science identified all English case series, cohort studies, and randomized controlled trials that reported local recurrence rates after surgery for cutaneous head and neck melanoma. A meta-analysis utilizing a random effects model calculated weighted local recurrence rates and confidence intervals (CI) for each surgical technique and for subgroups of MMS and staged excision. RESULTS: Among 100 manuscripts with 13,998 head and neck cutaneous melanomas, 51.0% (7138) of melanomas were treated by WLE, 34.5% (4826) by MMS, and 14.5% (2034) by staged excision. Local recurrence rates were lowest for MMS (0.61%; 95% CI, 0.1%-1.4%), followed by staged excision (1.8%; 95% CI, 1.0%-2.9%) and WLE (7.8%; 95% CI, 6.4%-9.3%). LIMITATIONS: Definitions of local recurrence varied. Surgical techniques included varying proportions of invasive melanomas. Studies had heterogeneity. CONCLUSION: Systematic review and meta-analysis show lower local recurrence rates for cutaneous head and neck melanoma after treatment with MMS or staged excision compared to WLE.
Asunto(s)
Melanoma , Neoplasias Cutáneas , Humanos , Melanoma/epidemiología , Melanoma/cirugía , Cirugía de Mohs , Recurrencia Local de Neoplasia/epidemiología , Estudios Prospectivos , Estudios Retrospectivos , Neoplasias Cutáneas/epidemiología , Neoplasias Cutáneas/cirugía , Melanoma Cutáneo MalignoRESUMEN
BACKGROUND: Mohs micrographic surgery (MMS) for cutaneous melanoma is becoming more prevalent, but surgical technique varies. OBJECTIVE: To define variations in published techniques for MMS for melanoma. METHODS AND MATERIALS: A systematic review was performed of PubMed, EMBASE, and Scopus databases to identify all articles describing surgical techniques for MMS for melanoma. Technical details were recorded for the preoperative, intraoperative, and postoperative phases of MMS. RESULTS: Twenty-four articles were included. Mohs surgeons vary in how they assess clinical margins, how wide a margin they excise on the first MMS layer, and how they process tissue to determine tumor stage and margin clearance during MMS for melanoma. CONCLUSION: Mohs micrographic surgery for melanoma is performed with varied surgical techniques. To establish best practices, additional research is necessary to determine how different techniques affect outcomes.