Abstract
Hyaline fibromatosis (HF) is a rare genetic disease, with two types that have an early onset. The disease is distinguished by hyaline deposition at different areas in the body, osteolytic bony lesions, and gingival hypertrophy. There are two variants of the disease, juvenile and infantile HF. In this report, we present two cases of HF that were seen in National Guard Hospital within Riyadh - Kingdom of Saudi Arabia.