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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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