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Fidanzi C, Bevilacqua M, D'Erme AM, Morganti R, Viacava P, Manzo Margiotta F, Romanelli M, Dini V, Janowska A, Bagnoni G. Mitotic rate as a predictive factor for positive sentinel lymph nodes in pT1 and pT2 melanomas. J Plast Reconstr Aesthet Surg 2023; 83:215-220. [PMID: 37279633 DOI: 10.1016/j.bjps.2023.04.085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 04/06/2023] [Accepted: 04/26/2023] [Indexed: 06/08/2023]
Abstract
Sentinel lymph node biopsy is a crucial step in the management of patients affected by melanoma. The decision whether to perform it or not is based on different histological parameters, but the mitotic rate is no longer considered a prognostic variable after the release of the 8th edition of the American Joint Committee on Cancer (AJCC) guidelines. Our objective was to investigate the risk factors that increase the chance for sentinel lymph node positivity in melanomas with a Breslow thickness of less than 2.00 mm, including the mitotic count. A retrospective single-center study was performed on a homogenous cohort of 408 patients treated for cutaneous melanoma. Histological and clinical features were gathered and correlated with the increased risk for sentinel lymph node positivity by means of univariate and multivariate analyses. A statistically significant correlation between a high mitotic index and a positive sentinel lymph node was found in pT1 and pT2 patients, suggesting that in the case of pT1a melanoma with a high number of mitoses, a discussion about whether a sentinel lymph node biopsy is required should be done.
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Affiliation(s)
| | | | - Angelo Massimiliano D'Erme
- Melanoma and Skin Cancer Unit AVNO (Area Vasta Nord Ovest) and Unit of Dermatology, Livorno Hospital, Livorno, Italy
| | - Riccardo Morganti
- Statistical Support to Clinical Trials Department, University of Pisa, Pisa, Italy
| | - Paolo Viacava
- Unit of Pathology, Hospital of Livorno, Livorno, Italy
| | | | | | | | | | - Giovanni Bagnoni
- Melanoma and Skin Cancer Unit AVNO (Area Vasta Nord Ovest) and Unit of Dermatology, Livorno Hospital, Livorno, Italy
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2
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Borgognoni L, Crocetti E, Sestini S, Brandani P, Giannotti V, Gerlini G. The importance of mitosis ≥2 in selecting patients with T1 cutaneous melanomas for sentinel lymph node biopsy. Melanoma Res 2022; 32:469-476. [DOI: 10.1097/cmr.0000000000000851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Brănişteanu DE, Cozmin M, Porumb-andrese E, Brănişteanu D, Toader MP, Iosep D, Sinigur D, Brănişteanu CI, Brănişteanu G, Porumb V, Pînzariu AC, Băilă SL, Nicolescu AC. Sentinel Lymph Node Biopsy in Cutaneous Melanoma, a Clinical Point of View. Medicina (B Aires) 2022; 58:1589. [DOI: 10.3390/medicina58111589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 10/28/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
Abstract
Sentinel lymph node biopsy (SLNB) is a surgical procedure that has been used in patients with cutaneous melanoma for nearly 30 years. It is used for both staging and regional disease control with minimum morbidity, as proven by numerous worldwide prospective studies. It has been incorporated in the recommendations of national and professional guidelines. In this article, we provide a summary of the general information on SLNB in the clinical guidelines for the management of cutaneous malignant melanoma (American Association of Dermatology, European Society of Medical Oncology, National Comprehensive Cancer Network, and Cancer Council Australia) and review the most relevant literature to provide an update on the existing recommendations for SLNB.
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Huang H, Fu Z, Ji J, Huang J, Long X. Predictive Values of Pathological and Clinical Risk Factors for Positivity of Sentinel Lymph Node Biopsy in Thin Melanoma: A Systematic Review and Meta-Analysis. Front Oncol 2022; 12:817510. [PMID: 35155254 PMCID: PMC8829564 DOI: 10.3389/fonc.2022.817510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 01/10/2022] [Indexed: 11/25/2022] Open
Abstract
Background The indications for sentinel lymph node biopsy (SLNB) for thin melanoma are still unclear. This meta-analysis aims to determine the positive rate of SLNB in thin melanoma and to summarize the predictive value of different high-risk features for positive results of SLNB. Methods Four databases were searched for literature on SLNB performed in patients with thin melanoma published between January 2000 and December 2020. The overall positive rate and positive rate of each high-risk feature were calculated and obtained with 95% confidence intervals (CIs). Both unadjusted odds ratios (ORs) and adjusted ORs (AORs) of high-risk features were analyzed. Pooled effects were estimated using random-effects model meta-analyses. Results Sixty-six studies reporting 38,844 patients with thin melanoma who underwent SLNB met the inclusion criteria. The pooled positive rate of SLNB was 5.1% [95% confidence interval (CI) 4.9%-5.3%]. Features significantly predicted a positive result of SLNB were thickness≥0.8 mm [AOR 1.94 (95%CI 1.28-2.95); positive rate 7.0% (95%CI 6.0-8.0%)]; ulceration [AOR 3.09 (95%CI 1.75-5.44); positive rate 4.2% (95%CI 1.8-7.2%)]; mitosis rate >0/mm2 [AOR 1.63 (95%CI 1.13-2.36); positive rate 7.7% (95%CI 6.3-9.1%)]; microsatellites [OR 3.8 (95%CI 1.38-10.47); positive rate 16.6% (95%CI 2.4-36.6%)]; and vertical growth phase [OR 2.76 (95%CI 1.72-4.43); positive rate 8.1% (95%CI 6.3-10.1%)]. Conclusions The overall positive rate of SLNB in thin melanoma was 5.1%. The strongest predictor for SLN positivity identified was microsatellites on unadjusted analysis and ulceration on adjusted analysis. Breslow thickness ≥0.8 mm and mitosis rate >0/mm2 both predict SLN positivity in adjusted analysis and increase the positive rate to 7.0% and 7.7%. We suggest patients with thin melanoma with the above high-risk features should be considered for giving an SLNB.
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Affiliation(s)
- Hanzi Huang
- Department of Plastic Surgery, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ziyao Fu
- Department of Plastic Surgery, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiang Ji
- Department of Plastic Surgery, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiuzuo Huang
- Department of Plastic Surgery, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiao Long
- Department of Plastic Surgery, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Buja A, Bardin A, Damiani G, Zorzi M, De Toni C, Fusinato R, Spina R, Vecchiato A, Del Fiore P, Mocellin S, Baldo V, Rugge M, Rossi CR. Prognosis for Cutaneous Melanoma by Clinical and Pathological Profile: A Population-Based Study. Front Oncol 2021; 11:737399. [PMID: 34868928 PMCID: PMC8634953 DOI: 10.3389/fonc.2021.737399] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 10/25/2021] [Indexed: 11/13/2022] Open
Abstract
Introduction Among white people, the incidence of cutaneous malignant melanoma (CMM) has been increasing steadily for several decades. Meanwhile, there has also been a significant improvement in 5-year survival among patients with melanoma. This population-based cohort study investigates the five-year melanoma-specific survival (MSS) for all melanoma cases recorded in 2015 in the Veneto Tumor Registry (North-Est Italian Region), taking both demographic and clinical-pathological variables into consideration. Methods The cumulative melanoma-specific survival probabilities were calculated with the Kaplan-Meier method, applying different sociodemographic and clinical-pathological variables. Cox’s proportional hazards model was fitted to the data to assess the association between independent variables and MSS, and also overall survival (OS), calculating the hazard ratios (HR) relative to a reference condition, and adjusting for sex, age, site of tumor, histotype, melanoma ulceration, mitotic count, tumor-infiltrating lymphocytes (TIL), and stage at diagnosis. Results Compared with stage I melanoma, the risk of death was increased for stage II (HR 3.31, 95% CI: 0.94-11.76, p=0.064), almost ten times higher for stage III (HR 10.51, 95% CI: 3.16-35.02, p<0.001), and more than a hundred times higher for stage IV (HR 117.17, 95% CI: 25.30-542.62, p<0.001). Among the other variables included in the model, the presence of mitoses and histological subtype emerged as independent risk factors for death. Conclusions The multivariable analysis disclosed that older age, tumor site, histotype, mitotic count, and tumor stage were independently associated with a higher risk of death. Data on survival by clinical and morphological characteristics could be useful in modelling, planning, and managing the most appropriate treatment and follow-up for patients with CMM.
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Affiliation(s)
- Alessandra Buja
- Department of Cardiologic, Vascular and Thoracic Sciences, and Public Health, University of Padua, Padua, Italy
| | - Andrea Bardin
- Department of Cardiologic, Vascular and Thoracic Sciences, and Public Health, University of Padua, Padua, Italy
| | - Giovanni Damiani
- Clinical Dermatology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Ortopedico Galeazzi, Milan, Italy.,Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy.,PhD Program in Pharmacological Sciences, Department of Pharmaceutical and Pharmacological Sciences, University of Padua, Padua, Italy
| | - Manuel Zorzi
- Veneto Tumor Registry - Azienda Zero, Padova, Italy
| | - Chiara De Toni
- Department of Cardiologic, Vascular and Thoracic Sciences, and Public Health, University of Padua, Padua, Italy
| | - Riccardo Fusinato
- Department of Cardiologic, Vascular and Thoracic Sciences, and Public Health, University of Padua, Padua, Italy
| | - Romina Spina
- Surgical Oncology Unit, Veneto Institute of Oncology IOV-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Padova, Italy
| | - Antonella Vecchiato
- Surgical Oncology Unit, Veneto Institute of Oncology IOV-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Padova, Italy
| | - Paolo Del Fiore
- Surgical Oncology Unit, Veneto Institute of Oncology IOV-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Padova, Italy
| | - Simone Mocellin
- Surgical Oncology Unit, Veneto Institute of Oncology IOV-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Padova, Italy.,Department of Surgery, Oncology and Gastroenterology (DISCOG), University of Padua, Padova, Italy
| | - Vincenzo Baldo
- Department of Cardiologic, Vascular and Thoracic Sciences, and Public Health, University of Padua, Padua, Italy
| | - Massimo Rugge
- Veneto Tumor Registry - Azienda Zero, Padova, Italy.,Department of Medicine DIMED, Surgical Pathology & Cytopathology Unit, University of Padova, Padova, Italy
| | - Carlo Riccardo Rossi
- Department of Surgery, Oncology and Gastroenterology (DISCOG), University of Padua, Padova, Italy
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Wainstein AJA, Duprat Neto JP, Enokihara MY, Brechtbühl ER, Riccardi F, Landman G, de Melo AC, de Lima Vazquez V, Munhoz RR, Dunshee De Abranches Oliveira Santos Filho I, Bertolli E, Drummond-Lage AP, Costa Soares de Sá B, Botelho L, Higino Steck J, Belfort FA, Maia M, Bakos RM, Gomes EE, Schmerling R, Cavarsan F. Demographic, Clinical, and Pathologic Features of Patients With Cutaneous Melanoma: Final Analysis of the Brazilian Melanoma Group Database. JCO Glob Oncol 2021; 6:575-582. [PMID: 32293941 PMCID: PMC7193775 DOI: 10.1200/jgo.20.00005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE National epidemiologic data on melanoma are scarce in Brazil. The current work presents final demographic, clinical, and pathologic results from the Brazilian Melanoma Group database to detail how patients with melanoma present at diagnosis. METHODS The online database includes patients diagnosed between 1982 and 2015 and evaluated at their centers of origin between 2001 and 2016. The primary objective was to describe the demographic, clinical, and pathologic characteristics of the patients, and secondary objectives were to investigate the association between clinical and pathologic variables of interest. RESULTS A total of 1,596 patients were included. Median age was 52 years, 57% were women, and the majority were identified as white. Invasive melanoma was diagnosed in 1,297 patients, mostly localized, whereas 299 (19%) had in situ disease (TisN0M0). Only 165 patients had initial lymph node involvement. Fitzpatrick skin types I or II were slightly more frequent with in situ melanoma (73%) than with invasive disease (67%; P = .054). The median Breslow thickness was 0.95 mm, Clark levels 2 and 3 comprised nearly 70% of cases, and ulceration was present in 18% of patients. The mitotic rate was significantly associated with the presence of ulceration and both vascular and perineural invasion but not with margin positivity, whereas histologic regression was associated with both intratumoral and peritumoral inflammatory infiltrates. CONCLUSION Despite the limitations of an observational, registry-based study, the current results provide a general profile of patients with cutaneous melanoma in Brazil at the time of diagnosis.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Marcus Maia
- Brazilian Melanoma Group, São Paulo, São Paulo, Brazil
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NAGORE E, MORO R. Surgical procedures in melanoma: recommended deep and lateral margins, indications for sentinel lymph node biopsy, and complete lymph node dissection. Ital J Dermatol Venerol 2021; 156:331-343. [DOI: 10.23736/s2784-8671.20.06776-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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8
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Zhou YX, Wang X, Pang DQ, Wang YM, Bai J, Tian F, Han D, Shi S, Hu L. Nomogram Incorporating the WNT/β-Catenin Signaling Pathway for Predicting the Survival of Cutaneous Melanoma. Int J Gen Med 2021; 14:2751-2761. [PMID: 34188529 PMCID: PMC8236283 DOI: 10.2147/ijgm.s309616] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 06/14/2021] [Indexed: 12/23/2022] Open
Abstract
Background Accurate prediction of the survival of cutaneous melanoma (CM) permits the selection of the optimal treatment. Currently, the TNM stage has limitations in predicting the survival of CM. There is evidence that the WNT/β-catenin signaling pathway has the potential to predict the CM prognosis. However, it still needs further investigation. Objective This study aims to establish a nomogram incorporating the WNT/β-catenin signaling pathway to improve the predicted accuracy of the overall survival (OS) of CM. Methods Two hundred and eighty CM patients were recruited and followed up. The clinicopathological characteristics and the key genes of the WNT/β-catenin signaling pathway (VEGF, β-catenin, and DKK1) were chosen as potential variables associated with the OS. In the training cohort (n = 190), a nomogram was built to estimate the 1-, 3-, and 5-year OS, and its discriminations and calibrations were valid by the verification cohort (n = 90). The predicted accuracies of the nomogram with or without the Wnt/β-catenin pathway and TNM stage were compared. Results A nomogram integrating independent risk factors (ulceration, lymph node metastasis, distant metastasis, Breslow thickness, dermal mitoses, β-catenin, VEGF, and DKK1), which were evaluated by a multivariate analysis, was constructed to predict the 1-, 3-, and 5-year OS of CM patients. Good discrimination and calibration were obtained regardless of the training or validation datasets. The nomogram incorporating the Wnt/β-catenin signaling pathway showed the highest accuracy [area under the curve (AUC)=0.914, 0.852, 0.785] compared with the nomogram without the Wnt/β-catenin signaling pathway (AUC=0.693, 0.640, 0.615) and the TNM stage (AUC=0.726, 0.693, 0.673). Conclusion The prognostic value of the established nomogram incorporating the WNT/β-catenin signaling pathway was better than it without WNT/β-catenin signaling pathway and TNM stage, which might be beneficial in the development of optimal treatment options.
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Affiliation(s)
- Yu-Xin Zhou
- Department of Radiation Oncology, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, People's Republic of China
| | - Xin Wang
- Department of Radiation Oncology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention & Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, People's Republic of China
| | - De-Quan Pang
- Department of Radiation Oncology, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, People's Republic of China
| | - Ying-Man Wang
- Department of Radiation and Chemotherapy Oncology, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, People's Republic of China
| | - Jing Bai
- Department of Pharmacology, North China University of Science and Technology, Tangshan, Hebei, People's Republic of China
| | - Fei Tian
- Department of Radiation Oncology, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, People's Republic of China
| | - Duo Han
- Department of Radiation Oncology, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, People's Republic of China
| | - Shuwei Shi
- Department of Radiation Oncology, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, People's Republic of China
| | - Lei Hu
- Department of Radiation Oncology, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, People's Republic of China
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Herb JN, Ollila DW, Stitzenberg KB, Meyers MO. Use and Costs of Sentinel Lymph Node Biopsy in Non-Ulcerated T1b Melanoma: Analysis of a Population-Based Registry. Ann Surg Oncol 2021; 28:3470-3478. [PMID: 33900501 DOI: 10.1245/s10434-021-09998-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 02/25/2021] [Indexed: 01/06/2023]
Abstract
BACKGROUND The utility of sentinel lymph node biopsy (SLNB) for non-ulcerated T1b melanoma is debated and associated costs are poorly characterized. Prior work using institutional registries may overestimate the incidence of nodal positivity in this population. OBJECTIVE The aim of this study was to estimate the use of SLNB, positivity prevalence, and procedural costs in patients with non-ulcerated T1b melanoma using a population-based registry. METHODS We identified patients with clinically node-negative, non-ulcerated melanoma 0.8-1.0 mm thick (T1b according to the 8th edition standard of the American Joint Committee on Cancer) in the Surveillance, Epidemiology, and End Results database from 2010 to 2016. The prevalence of SLNB procedures and positive sentinel nodes were calculated. Factors associated with SLNB and sentinel node positivity were assessed using logistic regression. Medicare reimbursement costs and patient out-of-pocket expenses for SLNB and wide local excision (WLE) versus WLE alone were estimated. RESULTS Among 7245 included patients, 3835(53%) underwent SLNB, 156 (4.1%, 95% confidence interval 3.5-4.7) of whom had a positive SLNB. Younger age, >1 mitosis per mm2, female sex, and truncal tumor location were associated with higher odds of positivity. The estimated SLNB cost to identify one patient with stage III disease was $71,700 (range $54,648-$83,172). Out-of-pocket expenses for a Medicare patient were estimated to be $652 for a WLE and SLNB and $79 for a WLE alone. CONCLUSIONS In this population-based study, only 4% of selected non-ulcerated T1b patients had a positive SLNB, which is lower than prior reports. At the population level, SLNB is associated with high costs per prognostic information gained.
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Affiliation(s)
- Joshua N Herb
- Department of Surgery, Division of Surgical Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA. .,Cecil G. Sheps Center for Health Services Research, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
| | - David W Ollila
- Department of Surgery, Division of Surgical Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Karyn B Stitzenberg
- Department of Surgery, Division of Surgical Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Michael O Meyers
- Department of Surgery, Division of Surgical Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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Kim D, Chu S, Khan AU, Compres EV, Zhang H, Gerami P, Wayne JD. Risk factors and patterns of recurrence after sentinel lymph node biopsy for thin melanoma. Arch Dermatol Res 2021; 314:285-292. [PMID: 33884478 DOI: 10.1007/s00403-021-02229-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 03/07/2021] [Accepted: 04/08/2021] [Indexed: 11/30/2022]
Abstract
While having a thin melanoma (defined as AJCC 8 T1 stage tumor ≤ 1.0 mm) with negative sentinel lymph node biopsy (SLNB) provides an excellent prognosis, some patients still develop recurrence and die. To determine risk factors for any recurrence (local/in-transit, nodal, distant) in thin melanoma patients with negative SLNB and assess survival outcomes. Retrospective review of thin melanomas with negative SLNB from 1999 to 2018 was performed. Two hundred and nine patients were identified. Clinicopathologic characteristics of the primary melanoma were collected. Patterns of recurrence for local/in-transit, nodal or distant recurrence and survival outcomes were analyzed. Eighteen patients (8.6%) developed recurrence: 3 (1.9%) local/in-transit, 4 (2.9%) regional/nodal, and 11 (5.3%) distant recurrence during a median follow-up time of 62 months. A multivariate Cox regression model showed that head and neck site (HR 3.52), ulceration (HR 10.8), and mitotic rate (HR 1.39) were significant risk factors for recurrence. Median time to first recurrence was 49 months. Patients with recurrence had a significantly worse 5 year overall survival than those without recurrence (82.2 vs 99.2%). A retrospective single center study and limited sample size. Did not factor in possible false negative SLNBs when calculating hazard ratios. For thin melanoma patients with negative SLNB, heightened surveillance is warranted for those with ulceration, primary tumor location on the head or neck, and elevated mitotic rate.
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Affiliation(s)
- Daniel Kim
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Stanley Chu
- Division of Surgical Oncology, Department of Surgery, Feinberg School of Medicine, Northwestern University, 676 North St. Clair Street, Arkes 650, Chicago, IL, 60611, USA
| | - Ayesha U Khan
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Elsy V Compres
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Hui Zhang
- Division of Biostatistics, Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Pedram Gerami
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.,Robert H. Lurie Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Jeffrey D Wayne
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA. .,Division of Surgical Oncology, Department of Surgery, Feinberg School of Medicine, Northwestern University, 676 North St. Clair Street, Arkes 650, Chicago, IL, 60611, USA. .,Robert H. Lurie Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
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11
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Skochdopole AJ, Kutlu OC, Engelhardt KE, Lancaster WP, Abbott AM, Camp ER. High Mitotic Rate Predicts Sentinel Lymph Node Involvement in Thin Melanomas. J Surg Res 2020; 256:198-205. [PMID: 32711176 DOI: 10.1016/j.jss.2020.06.045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 05/19/2020] [Accepted: 06/16/2020] [Indexed: 11/23/2022]
Abstract
BACKGROUND Indications for sentinel lymph node (SLN) biopsy in the population with thin melanoma have frequently changed over time. The objective of our study was to evaluate T1 melanoma pathologic features predictive of SLN positivity with a primary focus on identifying a specific mitotic value that is most predictive of lymph node disease. Further detailed predictive features would help physicians select patients with thin melanoma for SLN biopsy. METHODS The Surveillance, Epidemiology, and End Results database was queried for all patients diagnosed with trunk or extremity cutaneous melanoma with ≤1 mm depth who underwent SLN biopsy between the years of 2010 and 2013. Patient demographics and tumor characteristics including depth, mitotic rate (MR), ulceration, and tumor location were evaluated. MR was dichotomized at multiple cut points to identify the ideal number of mitosis for MR as a predictor of SLN status. Multivariable logistic regression analyses were performed to identify the factors affecting nodal positivity and the impact of MR threshold. Kaplan-Meir curves were used for overall survival (OS) analysis. RESULTS Factors significantly associated with SLN positivity in the entire cohort included MR (P < 0.001, OR 1.24, 95% CI 1.18-1.31), tumor location (P = 0.017, OR 1.48, 95% CI 1.07-2.05), and ulceration (P < 0.001, OR 2.01, 95% CI 1.39-2.93,). An MR ≥ 4 was significant for SLN positivity (P = 0.049, OR 1.08, 95% CI 1.01-1.38). Mean OS was 46.7 mo for MR < 4 compared with 43.2 mo for MR ≥ 4 (P < 0.001). CONCLUSIONS MR ≥ 4 was significant and associated with SLN positivity in thin melanomas and asulceration. Thus, MR ≥ 4 should be considered as an indication for SLN biopsy in thin melanoma.
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Theile H, Moore J, Dunn N, Cossio D, Forristal CE, Green AC, Smithers BM. Regional nodal metastasis and 5-year survival in patients with thin melanoma in Queensland: a population-based study. ANZ J Surg 2020; 90:503-507. [PMID: 32162780 DOI: 10.1111/ans.15804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/16/2019] [Accepted: 02/20/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Optimal management of regional lymph nodes for thin cutaneous melanoma is uncertain. We evaluated regional lymph node involvement and 5-year melanoma-specific survival (MSS) in patients with thin (≤1 mm) primary melanoma. METHODS Patients with a melanoma, American Joint Committee on Cancer Staging 8th Edition pT1a (<0.8 mm) or pT1b (ulceration; and/or 0.8-1.0 mm), diagnosed during 2001-2015 were identified from the Queensland Oncology Repository. We extracted demographic, pathology and clinical details, including sentinel lymph node biopsy (SLNB), regional nodal dissection and nodal recurrence. Poisson regression was used to assess recurrence risk in patients who did not undergo SLNB. The 5-year MSS was calculated using the Kaplan-Maier method with Cox regression to compare survival outcomes according to SLNB performance. RESULTS Of the 27 824 eligible patients, 240 (0.9%) underwent SLNB. One hundred and seventy-eight patients (0.6%) without SLNB had nodal recurrence. Of the 4848 patients with a pT1b lesion, 166 (3.4%) had SLNB with 12 (7.2%) positive; of the remainder, 99 (2.1%) had clinical recurrence. Risk of recurrence was higher in males, nodular subtype and T1b lesions and lower if patients were aged >60 years. The 5-year MSS was similar for observed and SLNB cohorts (99.66% versus 98.92%) but worse for T1b lesions (98.90%) and clinical nodal recurrence (66.89%). CONCLUSION Overall prognosis for T1 melanoma is excellent with nodal involvement being rare. However, the American Joint Committee on Cancer 8th Edition T1b melanoma correlates with significantly worse 5-year MSS and increased regional nodal recurrence (notably for 0.8-1.0 mm lesions with ulceration). Further characterization of high-risk groups for nodal positivity that impacts patient outcome is needed for the pT1 melanoma cohort.
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Affiliation(s)
- Harrison Theile
- Discipline of Surgery, The University of Queensland, Brisbane, Queensland, Australia.,Queensland Cancer Control Analysis Team, Cancer Alliance Queensland, Brisbane, Queensland, Australia.,Queensland Melanoma Project, Princess Alexandra Hospital, Brisbane, Queensland, Australia
| | - Julie Moore
- Queensland Cancer Control Analysis Team, Cancer Alliance Queensland, Brisbane, Queensland, Australia
| | - Nathan Dunn
- Queensland Cancer Control Analysis Team, Cancer Alliance Queensland, Brisbane, Queensland, Australia
| | - Danica Cossio
- Queensland Cancer Control Analysis Team, Cancer Alliance Queensland, Brisbane, Queensland, Australia
| | - Catherine E Forristal
- Queensland Melanoma Collaborative, Brisbane, Queensland, Australia.,Mater Research Institute, Brisbane, Queensland, Australia
| | - Adele C Green
- Population Health Department, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia.,CRUK Manchester Institute, University of Manchester, Manchester, UK
| | - B Mark Smithers
- Discipline of Surgery, The University of Queensland, Brisbane, Queensland, Australia.,Queensland Melanoma Project, Princess Alexandra Hospital, Brisbane, Queensland, Australia.,Queensland Melanoma Collaborative, Brisbane, Queensland, Australia.,Mater Research Institute, Brisbane, Queensland, Australia
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13
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Marsch AF, McKee RM, Hinds BR. Morphologic Forms and Classification of Dermal Mitotic Figure Density in Primary Cutaneous Melanoma: A Retrospective Study. Am J Dermatopathol 2020; 42:35-40. [PMID: 31884499 DOI: 10.1097/dad.0000000000001453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
New American Joint Committee on Cancer eighth edition staging parameters have removed mitotic rate as a stage T1 category criterion, but it remains embedded in the synopsis of primary cutaneous melanoma (CM). A paucity of data is available, characterizing atypical mitotic forms in CM. In this study, we classify the various morphologic forms of atypical mitoses, characterize mitotic figure density, and examine the correlation between atypical mitotic figures and Breslow depth. We performed a retrospective study of 185 thick (>0.8 mm) and thin (<0.8 mm) CM specimens. Metaphase mitotic figures represented the highest percentage of total mitotic figures in cases of thick melanoma (40%) and were the second most common in thin melanoma (18%). The average Breslow depth for melanoma harboring starburst mitoses was 2.85 mm, compared with the average Breslow depth of all thick melanoma cases, 1.88 mm. The average thickness of melanoma cases containing tripolar mitoses was 2.28 mm. Breslow depth correlated with the number of atypical mitotic figures in both thick and thin melanomas (the Pearson correlation test, r = +0.18, P < 0.01). Metaphase and prophase mitoses are a common finding in both thick and thin melanomas. Although atypical mitoses were indiscriminate, starburst and tripolar (ie, multipolar) mitoses were only inherent to cases of thick melanoma (stage T3). In sum, our study reveals a parallel relationship between the density of atypical mitotic figures and Breslow depth.
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Affiliation(s)
- Amanda F Marsch
- Department of Dermatology, University of California San Diego, La Jolla, CA; and
| | - Ryan M McKee
- University of California San Diego School of Medicine, San Diego, La Jolla, CA
| | - Brian R Hinds
- Department of Dermatology, University of California San Diego, La Jolla, CA; and
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14
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Tejera‐Vaquerizo A, Ribero S, Puig S, Boada A, Paradela S, Moreno‐Ramírez D, Cañueto J, de Unamuno B, Brinca A, Descalzo‐Gallego MA, Osella‐Abate S, Cassoni P, Carrera C, Vidal‐Sicart S, Bennássar A, Rull R, Alos L, Requena C, Bolumar I, Traves V, Pla Á, Fernández‐Orland A, Jaka A, Fernández‐Figueres MT, Hilari JM, Giménez‐Xavier P, Vieira R, Botella‐Estrada R, Román‐Curto C, Ferrándiz L, Iglesias‐Pena N, Ferrándiz C, Malvehy J, Quaglino P, Nagore E. Survival analysis and sentinel lymph node status in thin cutaneous melanoma: A multicenter observational study. Cancer Med 2019; 8:4235-4244. [PMID: 31215168 PMCID: PMC6675713 DOI: 10.1002/cam4.2358] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 06/02/2019] [Accepted: 06/04/2019] [Indexed: 12/27/2022] Open
Abstract
Mitotic rate is no longer considered a staging criterion for thin melanoma in the 8th edition of the American Joint Committee on Cancer Staging Manual. The aim of this observational study was to identify prognostic factors for thin melanoma and predictors and prognostic significance of sentinel lymph node (SLN) involvement in a large multicenter cohort of patients with melanoma from nine tertiary care hospitals. A total of 4249 consecutive patients with thin melanoma diagnosed from January 1, 1998 to December 31, 2016 were included. The main outcomes were disease-free interval and melanoma-specific survival for the overall population and predictors of SLN metastasis (n = 1083). Associations between survival and SLN status and different clinical and pathologic variables (sex, age, tumor location, mitosis, ulceration, regression, lymphovascular invasion, histologic subtype, Clark level, and Breslow thickness) were analyzed by Cox proportional hazards regression and logistic regression. SLN status was the most important prognostic factor for melanoma-specific survival (hazard ratio, 13.8; 95% CI, 6.1-31.2; P < 0.001), followed by sex, ulceration, and Clark level for patients who underwent SLNB. A mitotic rate of >2 mitoses/mm2 was the only factor associated with a positive SLN biopsy (odds ratio, 2.9; 95% CI, 1.22-7; P = 0.01. SLN status is the most important prognostic factor in thin melanoma. A high mitotic rate is associated with metastatic SLN involvement. SLN biopsy should be discussed and recommended in patients with thin melanoma and a high mitotic rate.
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Affiliation(s)
| | - Simone Ribero
- Medical Sciences Department, Section of DermatologyUniversity of TurinTurinItaly
| | - Susana Puig
- Melanoma Unit, Dermatology Department, Hospital ClinicUniversitat de Barcelona, Institut d'investigacions biomèdiques August Pi i Sunyer (IDIBAPS)BarcelonaSpain
- Centro de Investigación Biomédica en Red (CIBER) de Enfermedades RarasBarcelonaSpain
| | - Aram Boada
- Departamento de DermatologíaHospital Universitari Germans Trial i PujolBadalonaSpain
| | - Sabela Paradela
- Departamento de DermatologíaHospital Universitario de la CoruñaLa CoruñaSpain
| | - David Moreno‐Ramírez
- Melanoma Unit, Medical‐&‐Surgical Dermatology DepartmentHospital Universitario Virgen MacarenaSevillaSpain
| | - Javier Cañueto
- Servicio de DermatologíaComplejo Asistencial Universitario de SalamancaSalamancaSpain
- Instituto de Investigación Biomédica de SalamancaComplejo Asistencial Universitario de SalamancaSalamancaSpain
| | - Blanca de Unamuno
- Departamento de DermatologíaHospital Universitario La FeValenciaSpain
| | - Ana Brinca
- Department of DermatologyUniversity Hospital of CoimbraCoimbraPortugal
| | | | - Simona Osella‐Abate
- Medical Sciences Department, Section of Surgical PathologyUniversity of TurinTurinItaly
| | - Paola Cassoni
- Medical Sciences Department, Section of Surgical PathologyUniversity of TurinTurinItaly
| | - Cristina Carrera
- Melanoma Unit, Dermatology Department, Hospital ClinicUniversitat de Barcelona, Institut d'investigacions biomèdiques August Pi i Sunyer (IDIBAPS)BarcelonaSpain
| | - Sergi Vidal‐Sicart
- Nuclear Medicine DepartmentHospital Clinic Barcelona, Universitat de Barcelona, Institut d'investigacions biomèdiques August Pi i Sunyer (IDIBAPS)BarcelonaSpain
| | - Antoni Bennássar
- Melanoma Unit, Dermatology Department, Hospital ClinicUniversitat de Barcelona, Institut d'investigacions biomèdiques August Pi i Sunyer (IDIBAPS)BarcelonaSpain
| | - Ramón Rull
- Surgery DepartmentHospital ClinicBarcelonaSpain
| | - Llucìa Alos
- Pathology Department, Hospital ClinicUniversidad de BarcelonaBarcelonaSpain
| | - Celia Requena
- Dermatology DepartmentInstituto Valenciano de OncologíaValenciaSpain
| | - Isidro Bolumar
- Surgery DepartmentInstituto Valenciano de OncologíaValenciaSpain
| | - Víctor Traves
- Pathology DepartmentInstituto Valenciano de OncologíaValenciaSpain
| | - Ángel Pla
- Otorhinolaringology DepartmentInstituto Valenciano de OncologíaValenciaSpain
| | - A. Fernández‐Orland
- Melanoma Unit, Medical‐&‐Surgical Dermatology DepartmentHospital Universitario Virgen MacarenaSevillaSpain
| | - Ane Jaka
- Departamento de DermatologíaHospital Universitari Germans Trial i PujolBadalonaSpain
| | | | - Josep M. Hilari
- Departamento de DermatologíaHospital Universitari Germans Trial i PujolBadalonaSpain
| | - Pol Giménez‐Xavier
- Melanoma Unit, Dermatology Department, Hospital ClinicUniversitat de Barcelona, Institut d'investigacions biomèdiques August Pi i Sunyer (IDIBAPS)BarcelonaSpain
- Centro de Investigación Biomédica en Red (CIBER) de Enfermedades RarasBarcelonaSpain
| | - Ricardo Vieira
- Department of DermatologyUniversity Hospital of CoimbraCoimbraPortugal
| | | | - Concepción Román‐Curto
- Servicio de DermatologíaComplejo Asistencial Universitario de SalamancaSalamancaSpain
- Instituto de Investigación Biomédica de SalamancaComplejo Asistencial Universitario de SalamancaSalamancaSpain
| | - Lara Ferrándiz
- Melanoma Unit, Medical‐&‐Surgical Dermatology DepartmentHospital Universitario Virgen MacarenaSevillaSpain
| | | | - Carlos Ferrándiz
- Departamento de DermatologíaHospital Universitari Germans Trial i PujolBadalonaSpain
| | - Josep Malvehy
- Melanoma Unit, Dermatology Department, Hospital ClinicUniversitat de Barcelona, Institut d'investigacions biomèdiques August Pi i Sunyer (IDIBAPS)BarcelonaSpain
- Centro de Investigación Biomédica en Red (CIBER) de Enfermedades RarasBarcelonaSpain
| | - Pietro Quaglino
- Medical Sciences Department, Section of DermatologyUniversity of TurinTurinItaly
| | - Eduardo Nagore
- Dermatology DepartmentInstituto Valenciano de OncologíaValenciaSpain
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15
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López-tapia S, Aneiros-fernández J, Pérez de la blanca N. A Fast Pyramidal Bayesian Model for Mitosis Detection in Whole-Slide Images. In: Reyes-aldasoro CC, Janowczyk A, Veta M, Bankhead P, Sirinukunwattana K, editors. Digital Pathology. Cham: Springer International Publishing; 2019. pp. 135-43. [DOI: 10.1007/978-3-030-23937-4_16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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16
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Egger ME, Stevenson M, Bhutiani N, Jordan AC, Scoggins CR, Philips P, Martin RC, Mcmasters KM. Should Sentinel Lymph Node Biopsy Be Performed for All T1b Melanomas in the New 8th Edition American Joint Committee on Cancer Staging System? J Am Coll Surg 2019; 228:466-72. [DOI: 10.1016/j.jamcollsurg.2018.12.030] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Accepted: 12/17/2018] [Indexed: 11/21/2022]
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17
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Conic RRZ, Ko J, Damiani G, Funchain P, Knackstedt T, Vij A, Vidimos A, Gastman BR. Predictors of sentinel lymph node positivity in thin melanoma using the National Cancer Database. J Am Acad Dermatol 2019; 80:441-447. [PMID: 30240775 DOI: 10.1016/j.jaad.2018.08.051] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 08/26/2018] [Accepted: 08/29/2018] [Indexed: 11/26/2022]
Abstract
BACKGROUND Sentinel lymph node biopsy (SLNB) specimens are often obtained from patients for further staging after these patients have undergone melanoma excision. Limited data regarding predictors of SLNB positivity in thin melanoma are available. OBJECTIVE We sought to evaluate predictors of SLNB positivity in thin melanoma. METHODS Patients with cutaneous melanoma with a Breslow thickness ≤1.00 mm who received a SLNB were identified from the National Cancer Database between 2004 and 2014 (n = 9186). Predictors of SLNB positivity were analyzed using logistic regression. RESULTS In a multivariate analysis, patients <60 years of age (P < .001) and Breslow thickness >0.8 mm (P = .03) were at increased risk for positive sentinel lymph node (SLN). Moreover, on multivariate analysis, the presence of dermal mitoses increased the odds of SLN positivity by 95% (odds ratio [OR] 1.95 [95% confidence interval {CI} 1.53-2.5], P < .001), ulceration by 63% (OR 1.63 [95% CI 1.21-2.18], P < .001), and Clark level IV to V by 48% (OR 1.48 [95% CI 1.19-1.85]). Patients without ulceration but with dermal mitoses had 92% (OR 1.92 [95% CI 1.5-2.48], P < .001) increased SLN positivity. LIMITATIONS Limited survival data are available. CONCLUSIONS Younger age, a Breslow thickness >0.8 mm, the presence of dermal mitoses, ulceration, and Clark level IV to V are positive predictors of positive SLN. While the new American Joint Committee on Cancer system has removed dermal mitotic rate from staging, continued evaluation of dermal mitotic rate could be valuable for guiding surgical decision making about SLNB.
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Affiliation(s)
- Rosalynn R Z Conic
- Department of Dermatology and Plastic Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Jennifer Ko
- Department of Pathology, Cleveland Clinic, Cleveland, Ohio
| | - Giovanni Damiani
- Department of Dermatology and Plastic Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Pauline Funchain
- Department of Hematology and Oncology, Cleveland Clinic, Cleveland, Ohio
| | - Thomas Knackstedt
- Department of Dermatology and Plastic Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Alok Vij
- Department of Dermatology and Plastic Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Allison Vidimos
- Department of Dermatology and Plastic Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Brian R Gastman
- Department of Dermatology and Plastic Surgery, Cleveland Clinic, Cleveland, Ohio.
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18
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Crocetti E, Stanganelli I, Mancini S, Vattiato R, Giuliani O, Ravaioli A, Balducci C, Falcini F, Pimpinelli N. Evaluation of the agreement between TNM 7th and 8th in a population-based series of cutaneous melanoma. J Eur Acad Dermatol Venereol 2018; 33:521-524. [PMID: 30317667 DOI: 10.1111/jdv.15285] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 09/19/2018] [Indexed: 12/30/2022]
Abstract
BACKGROUND The 8th edition of TNM has introduced new rules for staging cutaneous melanoma. OBJECTIVE To compare TNM 7th and 8th editions in defining pathological stages of melanoma. METHODS A population-based series of 1847 skin melanoma from Romagna cancer registry (Italy) incident during 2003-2012 has been used to measure the agreement (with Cohen's kappa) between TNM 8th and 7th editions in defining melanoma stage. Disease-specific survival has been computed for each stage according to TNM 7th and 8th. RESULTS The agreement between the two TNM editions was quite good when considered on average (kappa = 70.7%), moderate for stage I (61.5%), nearly perfect for stage II (95.0%), but extremely poor for stage III (8.1%). The overall melanoma-specific observed survival was 90.8% at 5 year and 88.9% at 10 year with a strong prognostic effect of stage. CONCLUSION TNM 8th edition introduces several changes which do not seem really helpful in addressing the care of stage I melanoma and may complicate the definition and comparability of stage III.
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Affiliation(s)
- E Crocetti
- Romagna Cancer Registry, IRCCS, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST), Meldola, Italy.,Dermatology Unit, Department of Surgery and Translational Medicine, University of Florence Medical School, Florence, Italy
| | - I Stanganelli
- Skin Cancer Unit, IRCCS, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST), Meldola, Italy.,University of Parma, Parma, Italy
| | - S Mancini
- Romagna Cancer Registry, IRCCS, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST), Meldola, Italy
| | - R Vattiato
- Romagna Cancer Registry, IRCCS, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST), Meldola, Italy
| | - O Giuliani
- Romagna Cancer Registry, IRCCS, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST), Meldola, Italy
| | - A Ravaioli
- Romagna Cancer Registry, IRCCS, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST), Meldola, Italy
| | - C Balducci
- Romagna Cancer Registry, IRCCS, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST), Meldola, Italy
| | - F Falcini
- Romagna Cancer Registry, IRCCS, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST), Meldola, Italy.,Romagna Local Health Unit, Forlì, Italy
| | - N Pimpinelli
- Dermatology Unit, Department of Surgery and Translational Medicine, University of Florence Medical School, Florence, Italy
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19
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Grossman D, Bowen GM. Commentary on Impact of National Comprehensive Cancer Network Guidelines on Case Selection and Outcomes for Sentinel Lymph Node Biopsy in Thin Melanoma. Dermatol Surg 2018; 44:502-3. [PMID: 29309343 DOI: 10.1097/DSS.0000000000001438] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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