Erschienen in:
01.09.2021 | Case Reports
Polymorphous Adenocarcinoma, Low Grade Variant, Colliding with a Neurofibroma
verfasst von:
Nikolaos G. Katsoulas, Konstantinos I. Tosios, Hannah Afwerke Lynch, Rachel Uppgaard, Ioannis G. Koutlas
Erschienen in:
Head and Neck Pathology
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Ausgabe 2/2022
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Abstract
Collision tumors, composed of two distinct benign or malignant neoplasms, are rarely reported in the oral cavity. We present a case of a 61-year-old female with an asymptomatic non-demarcated lump on the soft palate of unknown duration. An incisional biopsy revealed the presence of two neoplastic populations, a neurofibroma that was partially infiltrated by a polymorphous adenocarcinoma, low-grade variant. Total surgical excision was performed, with uneventful follow-up period. The development of collision tumors may be incidental, although molecular events may influence the pathogenetic mechanism of the phenomenon.