Melanotic neuroectodermal tumor of infancy (MNTI) of the head and neck: A French multicenter study

Publication date: Available online 12 December 2017
Source:Journal of Cranio-Maxillofacial Surgery
Author(s): Audrey Moreau, Louise Galmiche, Veronique Minard-Colin, Martin Rachwalski, Kahina Belhous, Daniel Orbach, Aline Joly, Arnaud Picard, Natacha Kadlub
ObjectivesMelanotic neuroectodermal tumor of infancy (MNTI) of the head and neck is a rare entity with uncertain clinical behavior. Radical surgical resection is the current recommended treatment, however this can cause severe aesthetic and functional sequelae. The aim of this study was to clinically characterize MNTIs and to stratify risk factors that may influence locoregional recurrence.MethodsA retrospective multicenter study, including 11 patients from eight centers with a confirmed diagnosis of MNTI, was conducted. Epidemiological, clinical, radiological, pathological, and immunohistochemical examinations were reviewed. A statistical analysis using a t-test was conducted to calculate parameters correlating with tumor recurrence.ResultsMNTIs mainly occurred in the maxilla, with a mean age at diagnosis of 3.18 months (range: 0–6 months). Primary surgery was performed on 10 patients, with a clear margin resection on two patients. Overall recurrence rate was 27% with a survival of 100% at time of follow-up. No statistical correlation between recurrence rate, age at diagnosis, localization, resection margins, and pathological and immunohistochemical characteristics could be established.ConclusionIn our study, locoregional tumor recurrence did not seem to correlate with resection margins, so a conservative surgical approach may need to be considered to avoid functional and aesthetic sequelae.



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