Bone matrix is comprised primarily of collagen, which takes the shape of chains in various sizes and dimensions. Bone matrix is created from various collagens, which are the most abundant proteins in... Bone matrix is comprised primarily of collagen, which takes the shape of chains in various sizes and dimensions. Bone matrix is created from various collagens, which are the most abundant proteins in the body.
It is best to prevent actinic keratoses by minimizing sun exposure. Treatments for actinic keratoses include cryosurgery, scraping or burning, 5-fluorouracil cream, imiquimod (Aldara), diclofenac (Voltaren, Cataflam, Voltaren-XR, Cambia), ingenol mebutate (Picato), TCA skin peels, and photodynamic therapy.
The typical actinic keratosis (AK) is a dry, scaly, rough bump that is skin-colored to reddish brown. The lesion may range from the size of a pinhead to larger than a quarter. Some skin colored AKs may be easier to feel than see. When touched, these often feel like sandpaper.