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.
Like squamous cell cancer of the skin, Bowen's disease can grow anywhere. It is most common on the trunk, arms or legs. The phrase Bowen's disease is often used for squamous cell carcinoma in situ around the genitals or anus.ne type of Bowen's disease is called bowenoid papulosis. This is associated with infection with a type of genital wart virus called HPV 16. This is one of the types of virus that is also associated with cervical cancer and cancer of the penis.