Post-COVID-19 Exacerbation of a Stable Fibrous Dysplasia: A Case Report

Fibrous dysplasia (FD) is a rare, benign fibro-osseous lesion characterized by replacement of normal bone with extensive fibrous stroma due to abnormalities in osteoblast differentiation. After puberty and during adulthood, FD lesions usually become quiescent. However, some cases show signs of regrowth and reactivation. Here, we report a previously stable maxillary FD case in a 32-year-old man reactivated after a mild COVID-19 infection. We hypothesize that SARS-CoV-2 may utilize diverse mechanisms to induce tumor/cancer in multiple organs, including initiating inflammatory cascades and modifying tumor-suppressing pathways. The capacity of SARS-CoV-2 to enhance the expression of proinflammatory and tumorigenic molecules necessitates further research to ascertain any correlation between this viral infection and FD or other similar diseases.