A skin abscess that forms at a hair follicle infected with pus-forming bacteria. The main treatments include hot packs and draining (lancing) the boil when it is soft. Antibiotics are usually not very helpful in treating boils. A person who has a fever or long-term illness, such as cancer or diabetes, or is taking medications that suppress the immune system should contact a health care practitioner on developing a boil. Also known as furuncle.
Bone: Bone is the substance that forms the skeleton of the body. It is composed chiefly of calcium phosphate and calcium carbonate. It also serves as a storage area for calcium, playing a large role in calcium balance in the blood. The 206 bones in the body serve several other purposes. They support and protect […]
- Bone cancer
A malignancy of bone. Primary bone cancer (cancer that begins in bone) is rare, but it is not unusual for cancers to metastasize (spread) to bone from other parts of the body, such as the breast, lung, and prostate. The most common type of primary bone cancer is osteosarcoma, which develops in new tissue in […]
- Bone cyst, aneurysmal
Bone cyst, aneurysmal: A benign lesion in a bone that contains connective tissue and blood inside a thin bony shell. Aneurysmal bone cysts act like tumors and expand the bone, and they typically occur in the second decade of life. They can affect any bone in the arms, legs, trunk, or skull.
- Bone cyst, simple
Bone cyst, simple: A solitary fluid-filled cavity (cyst) in a bone, usually in the shaft of a long bone, especially the humerus, in a child. A simple bone cyst can cause pain in or near the bone. Also known as unicameral bone cyst and solitary bone cyst.
- Bone density
Bone density: Bone density is the amount of bone tissue in a certain volume of bone. It can be measured using a special x-ray called a quantitative computed tomogram.