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the ophthalmology unit of Kowloon East Cluster, in collaboration with the infection control team, formulated this contingency plan with a main aim of facilitating the contact tracing of staff and patients to control the spread of coronavirus disease 2019 (COVID-19). 1 The plan also provided guidance to our staff on facilities management.

L ingual osteoma is a rare condition, with fewer than 100 cases reported. Because of its rarity, we present an additional case of lingual osteoma that occurred in a 22-year-old woman. This is the first case report, to our knowledge, of a lingual osteoma with preoperative magnetic resonance imaging (MRI) findings described. The epidemiology, clinical presentation, and underlying pathogenesis of this condition are also discussed.