What Is a Subchondral Bone Cyst? It's a fluid-filled sac that forms in one or both of the bones that make up a joint. They're especially common at the knee or hip. The cysts show up just under the ...

Subchondral bone cysts (SBCs) are sacs filled with fluid that form inside of joints such as knees, hips, and shoulders. The sac is usually primarily filled with hyaluronic acid. Hyaluronic acid is a ...

Both arteriovenous malformations and solitary bone cysts can present in the mandible. Mental nerve paraesthesia can be a presenting feature with both types of lesions and diagnosis may be difficult.

First described in 1942, Stafne bone defects (SBDs), are well-defined, radio-lucent lingual depressions of the lower jaw bone that are asymptomatic and most frequently diagnosed in middle-aged men.