%0 Case Reports %T Adult onset Xanthogranuloma presenting as a solitary laryngeal localization: case report and review of literature. %A Velletrani G %A Francavilla B %A Rosati V %A Padial B %A Anemona L %A Girolamo SD %J Arch Clin Cases %V 9 %N 4 %D 2022 %M 36628161 暂无%R 10.22551/2022.37.0904.10221 %X Juvenile Xanthogranuloma (XG) is a rare disorder that belongs to the heterogeneous group of histiocytic neoplasms, characterized by a clonal expansion of non-Langerhans cell histiocytes that share a dermal macrophage phenotype. Although the head and neck region is the most common reported site of involvement by the Juvenile Xanthogranuloma family, laryngeal localization is extremely rare. We report a unique case of Adult Onset Xanthogranuloma with subglottic localization, presenting as a solitary laryngeal mass without other systemic or cutaneous lesions. A review of the previously described cases of laryngeal Xanthogranuloma has been performed, highlighting 7 cases of Juvenile Xanthogranuloma and only 3 cases of Adult Onset Xanthogranuloma. Despite the extreme rarity of laryngeal localization of XG, this histiocytic neoplasm should be considered as a differential diagnosis for laryngeal masses causing airway obstruction, even in the absence of other concomitant manifestations.