Dictionary

fibrous dysplasia, polyostotic See polyostotic fibrous dysplasia.

fibrous dysplasia, monostotic See monostotic fibrous dysplasia.

fibrosis, radiation Scarring of the lungs from radiation. Radiation fibrosis is a consequence of the repair process that follows radiation pneumonitis (inflammation of the lungs due to radiation), as from radiation therapy. Radiation fibrosis typically occurs within months to a few years after the completion of radiation treatments. Whereas the inflammation of radiation pneumonitis is…

fibrosarcoma A malignant tumor consisting of fibroblasts (connective tissue cells that produce the collagen found in scar tissue) Fibrosarcoma may occur as a mass in the soft tissues or may be found in bone. An infantile form of fibrosarcoma which occurs in children less than one year of age has an excellent prognosis when appropriately…

fibromyalgia A disease characterized by chronic pain, stiffness, and tenderness of muscles, tendons, and joints, without detectable inflammation. Fibromyalgia does not cause body damage or deformity. However, undue fatigue plagues 90 percent of patients with fibromyalgia. Sleep disorder is also common in patients with fibromyalgia. Fibromyalgia can be associated with other rheumatic conditions, and irritable…

fibromatosis A condition characterized by multiple fibromas. See also fibroma.

fibroma, ossifying See fibroma, cementoossifying.

fibroma, desmoplastic A rare type of primary bone tumor that is characteristically composed of well-differentiated cells that produce collagen. Desmoplastic fibromas are discovered most often in the first three decades of life, in the mandible (the femur and pelvis are also favored sites). Although benign, these tumors infiltrate locally and may cause pain and swelling…

fibroma, collagenous See fibroma, desmoplastic.

fibroma, cemento-ossifying A reactive lesion of the gingiva that may grow to very large size, unless treated. Abbreviated COF. A COF has a hard, fibrous consistency. Treatment is surgery. Also known as ossifying fibroma.

fibroma A benign tumor consisting of a mass of connective tisue cells that have a spindle shape.

fibroid A common benign tumor of the uterus. Fibroids can be present without symptoms. However, in about 25 percent of women, fibroids cause symptoms such as prolonged or heavy menstrual bleeding, pelvic pressure or pain, and, in rare cases, reproductive dysfunction. Drugs that manipulate the levels of steroid hormones can be effective in treating fibroids,…