Periostitis blade of a horned dinosaur. Periostitis Periostitis, also known as periostalgia, is a medical condition caused by inflammation of the periosteum, a layer of connective tissue that surrounds bone. The condition is generally chronic, and is marked by tenderness and swelling of the bone and pain. Acute periostitis is due to infection, is characterized by diffuse formation of pus, severe pain, constitutional symptoms, and usually results in necrosis. It can be caused by excessive physical activity as well, as in the case of medial tibial stress syndrome (also referred to as tibial periostalgia, soleus periostalgia, or shin splints). Congenital infection
Don (given name) English language. Don (given name) Don is a masculine given name in the Irish language and a short form of another masculine given name in the English language. The Irish name is derived from the Irish "donn"; the name can either mean "brown", or "chief", "noble". The Irish name is a variant spelling of "Donn". The English name is unrelated to the Irish name; this name is a short form of the given name "Donald". Pet forms of this English name include: "Donnie" and "Donny". It can also be a surname, also derived from "brown". It is a common name