1. Narrow resection margins are not associated with mortality or recurrence in patients with Merkel cell carcinoma: a retrospective study
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Eric Estève, Brigitte Dréno, Mahtab Samimi, Hervé Maillard, Yannick Le Corre, Agnès Caille, Astrid Blom, Monica Dinulescu, Philippe Saiag, Thibault Kervarrec, E. Wierzbicka-Hainaut, Frédéric Jaouen, Université de Tours (UT), Service de dermatologie, Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), Service de Pathologie [CHRU Tours], Infectiologie et Santé Publique (UMR ISP), Université de Tours (UT)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), MethodS in Patients-centered outcomes and HEalth ResEarch (SPHERE), Université de Tours (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Nantes - UFR des Sciences Pharmaceutiques et Biologiques, Université de Nantes (UN)-Université de Nantes (UN), Centre d’Investigation Clinique [Tours] CIC 1415 (CIC ), Centre Hospitalier Régional Universitaire de Tours (CHRU Tours)-Hôpital Bretonneau-Université de Tours (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM), Département de dermatologie [CHU Angers], Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM)-PRES Université Nantes Angers Le Mans (UNAM), Service de dermatologie [Nantes], Université de Nantes (UN)-Centre hospitalier universitaire de Nantes (CHU Nantes), Service de Dermatologie [Orléans], Centre Hospitalier Régional d'Orléans (CHRO), Département de Dermatologie [CHU Poitiers], Centre hospitalier universitaire de Poitiers (CHU Poitiers), Service de dermatologie [CH Le Mans], Centre Hospitalier Le Mans (CH Le Mans), Service de Dermatologie [Rennes] = Dermatology [Rennes], CHU Pontchaillou [Rennes], Service de Dermatologie Générale et Oncologique [AP-HP Hôpital Ambroise-Paré, Paris], Hôpital Ambroise Paré [AP-HP], Université de Tours, Centre Hospitalier Régional Universitaire de Tours (CHRU TOURS), Université de Tours-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Université de Tours-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Nantes - UFR des Sciences Pharmaceutiques et Biologiques, Centre Hospitalier Régional Universitaire de Tours (CHRU Tours)-Hôpital Bretonneau-Université de Tours-Institut National de la Santé et de la Recherche Médicale (INSERM), Université de Versailles Saint-Quentin-en-Yvelines - UFR Sciences de la santé Simone Veil (UVSQ Santé), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), and CCSD, Accord Elsevier
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Male ,Wide Local Excision ,Neoplasm, Residual ,medicine.medical_treatment ,[SDV]Life Sciences [q-bio] ,Cohort Studies ,030207 dermatology & venereal diseases ,0302 clinical medicine ,Merkel cell carcinoma ,Surgical margins ,Wide local excision ,Hazard ratio ,Margins of Excision ,Merkel Cell Carcinoma ,Middle Aged ,Prognosis ,Combined Modality Therapy ,Primary tumor ,3. Good health ,[SDV] Life Sciences [q-bio] ,030220 oncology & carcinogenesis ,Cohort ,Female ,France ,medicine.medical_specialty ,[SDV.CAN]Life Sciences [q-bio]/Cancer ,Dermatology ,Disease-Free Survival ,03 medical and health sciences ,[SDV.CAN] Life Sciences [q-bio]/Cancer ,medicine ,Humans ,Mortality ,General surgery ,Survival rate ,Aged ,Proportional Hazards Models ,Retrospective Studies ,business.industry ,Retrospective cohort study ,[SDV.MHEP.DERM] Life Sciences [q-bio]/Human health and pathology/Dermatology ,medicine.disease ,Skin neoplasms ,Survival Analysis ,Surgery ,Carcinoma, Merkel Cell ,Radiation therapy ,Multivariate Analysis ,Radiotherapy, Adjuvant ,Neoplasm Recurrence, Local ,business ,[SDV.MHEP.DERM]Life Sciences [q-bio]/Human health and pathology/Dermatology ,Follow-Up Studies - Abstract
Wide local excision constitutes the standard of care for Merkel cell carcinoma, but the optimal margin width remains controversial.To assess whether narrow margins (0.5-1 cm) were associated with outcome.Patients were recruited from a retrospective French multicentric cohort and included if they had had excision of primary tumor with minimum lateral margins of 0.5 cm. Factors associated with mortality and recurrence were assessed by multivariate regression.Among the 214 patients included, 58 (27.1%) had undergone excision with narrow margins (0.5-1 cm) versus 156 (72.9%) with wide margins (1 cm). During a median follow-up of 50.7 months, cancer-specific survival did not differ between groups (5-year specific survival rate 76.8% [95% confidence interval 61.7%-91.9%] and 76.2% [95% confidence interval 68.8%-83.6%], respectively). Overall survival, any recurrence-free survival, and local recurrence-free survival did not significantly differ between groups. Cancer-specific mortality was associated with age, male sex, American Joint Committee on Cancer stage III, and presence of positive margins.Retrospective design, heterogenous baseline characteristics between groups.Excision with narrow margins was not associated with outcome in this cohort, in which most patients had clear margins and postoperative radiation therapy. Residual tumor, mostly found on deep surgical margins, was independently associated with prognosis.
- Published
- 2021
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