[Research progress and frontier analysis of Laugier-Hunziker syndrome at home and abroad based on Citespace]

Objective: Analyzing the overview, changing trends, hotspots, and frontiers of the rare oral disease Laugier-Hunziker syndrome (LHS) using bibliometrics. Methods: Search the CNKI (China National Knowledge Infrastructure) and Web of science core collection (WOSCC) databases. The time span for Chinese literature is from January 1992 to December 2023, and for English literature is from January 1986 to December 2023. Utilize Citespace software to conduct visualized analysis on various aspects of the literature, including publication volume, authors, countries, institutions, journals, and keywords. Results: This study included a total of 112 articles (25 in Chinese and 87 in English). The overall publication volume showed a fluctuating slow-growth trend. Foreign authors Lenane P and Powell F had the highest number of publications. The team from Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, had the most publications among domestic authors. In terms of international collaboration, the United States demonstrated the highest centrality, but the collaborative network worldwide appeared relatively loose. University College Dublin was the foreign institution with the highest publication volume, while Peking Union Medical College Hospital was the domestic institution with the most publications. The journal with the highest number of foreign publications was the Journal of The American Academy of Dermatology, and the journal with the most domestic publications was the Chinese Leprosy Skin Disease Journal. Research hotspots for Laugier-Hunziker syndrome included lesion sites and differential diagnosis, while the frontiers of research encompassed differential diagnosis, disease management, and clinical manifestations related to oral mucosa. Conclusions: Laugier-Hunziker syndrome research shows a focus on differential diagnosis and symptom management. Future studies should prioritize optimizing treatment methods and emphasizing psychological support, while promoting interdisciplinary collaboration and the integration of global research networks to improve clinical diagnostic and therapeutic outcomes.