Leontiasis ossea - a largely historical term used to describe a number of conditions which result in the affected patient’s face resembling that of a lion. Although it is most frequently the result of craniofacial fibrous dysplasia (as in this case), the term has a broader usage encompassing other expansile facial bone diseases such as Paget’s disease.
Source: radiopaedia.org
Shepherd’s crook deformity - refers to a distinctive abnormal contour of the proximal femur in the setting of fibrous dysplasia. As the bone deforms the angle made between the neck of the femur and the femoral shaft decreases (coxa vara) and the bone becomes rounded simulating the appearance of a shepherd’s crook, a stick with a C-shaped end carried by shepherd’s particularly common in biblical times.
Source: radiopaedia.org
