Medical Definition of Sternum. Sternum: The long flat bone in the upper middle of the front of the chest. The sternum articulates (comes together) with the cartilages of the first seven ribs and with the clavicle (collarbone) on either side.
Bowen disease was first described in the medical literature by a physician named JT Bowen in 1912. Bowen disease is also known as squamous cell carcinoma in situ, and is generally considered an early, noninvasive form of intraepidermal squamous cell carcinoma.esions are usually not painful or may not be associated with any symptoms (asymptomatic). In most cases, treatment is highly successful. Bowen disease is considered a pre-cancerous condition, although the risk of developing skin cancer is less than 10 percent. The disorder usually affects older adults.
Bowen had often enjoyed three or four pints a night at his local village pub in the Lune Valley, Lancashire, although he had emphysema from his former 80-cigarettes-a-day habit, which he quit in 1973.