Skull with leontiasis ossea ("Lion face"). This rare condition is symptomatic of several diseases including fibrous dysplasia, Paget's disease, hyperparathyroidism, syphilitic osteoperiostitis and renal osteodystrophy. The condition is characterized by an overgrowth of bone (hyperostosis) in the facial and cranial bones.
Skull displaying Leiontiasis Ossea at the Musée Dupuytren in Paris. Leontiasis Ossea, also known as leontiasis, lion face or Lion Face Syndrome, is a rare medical condition characterized by an overgrowth of the facial and cranial bones. Leontiasis Ossea has no diagnostic significance. It is only a description of a symptom of bone disease with a broad variability. Photo credit: bidulx
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.
Leontiasis ossea, a.k.a. "lion face" - Leontiasis Ossea, also known as leontiasis or lion face, is a rare medical condition, characterized by an overgrowth of the facial and cranial bones. It is not a disease in itself, but a symptom of other diseases, including Paget’s disease, fibrous dysplasia, hyperparathyroidism and renal osteodystrophy. In the somewhat less common form of this rare disease the overgrowth of bone affects all the cranial bones as well as those of the face, the senses…
Leontiasis ossea -largely historical term used to describe a number of conditions which result in affected patient's face resembling that of a lion. Although it is most frequently associated w craniofacial fibrous dysplasia, it has a broader meaning encompassing other lesions that have similar appearance.