| central ossifying fibroma | <tumour> A painless, slow-growing, expansile, sharply circumscribed benign fibro-osseus tumour of the jaws that is derived from cells of the periodontal ligament; presents initially as a radiolucency that becomes progressively more opaque as it matures. See: central cementifying fibroma. (05 Mar 2000) |
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| peripheral ossifying fibroma | A reactive focal gingival overgrowth derived histogenetically from cells of the periodontal ligament and usually developing in response to local irritants (plaque and calculus) on associated teeth; consists microscopically of a hyperplastic cellular fibrous stroma supporting deposits of bone, cementum, or dystrophic calcification. (05 Mar 2000) |
| periungual fibroma | Multiple smooth firm nodules formed at the nail folds, often over 10 mm in length, which appear at or after puberty in some patients with tuberous sclerosis. Synonym: Koenen's tumour. (05 Mar 2000) |
| chondromyxoid fibroma | <radiology> Benign metaphyseal lesion, young adults (60% less than 30 years of age), lytic lesion with well-defined margin, diaphysis of long bone, proximal TIBIA (especially tubercle) most common, NO calcification Differential diagnosis: bubbly bone lesions (12 Dec 1998) |
| concentric fibroma | <tumour> A benign neoplasm, actually a leiomyoma, that occupies the entire circumference of the wall of the uterus. (05 Mar 2000) |
| senile fibroma | A polypoid outgrowth of both epidermis and dermal fibrovascular tissue, common terminology for any small benign cutaneous lesion. Synonym: acrochordon, fibroepithelial polyp, fibroma molle, senile fibroma, soft wart. (05 Mar 2000) |
| Shope fibroma | A connective tissue tumour of cottontail rabbits caused by a poxvirus of the genus Leporipoxvirus and found by Shope to be transmissible with cellular suspensions or Berkefeld filtrates; it is related to myxomatosis and is used in Europe as a source of vaccine to protect against the myxoma virus. Synonym: rabbit fibroma. (05 Mar 2000) |
| nonossifying fibroma | <tumour> A loculated osteolytic focus of cellular fibrous tissue, slightly expanding a bone, usually near the end of a long bone in older children; similar to fibrous cortical defect, although larger. (05 Mar 2000) |
| nonosteogenic fibroma | A common 1 to 3 cm defect in the cortex of a bone, most commonly the lower femoral shaft of a child, filled with fibrous tissue. Nonosteogenic or nonossifying fibroma by convention refers to lesions greater than 3 cm in diameter. See: nonossifying fibroma. Synonym: nonosteogenic fibroma. (05 Mar 2000) |
| desmoplastic fibroma | <tumour> A benign fibrous tumour of bone affecting children and young adults; cortical destruction may result. (05 Mar 2000) |
| irritation fibroma | A slow-growing nodule on the oral mucosa, composed of fibrous tissue covered by epithelium, resulting from mechanical irritation by dentures, fillings, cheek biting, etc. (05 Mar 2000) |
| odontogenic fibroma | <tumour> A rare odontogenic tumour found in soft tissue or as a central bony lesion. The tumour is composed of fibrous connective tissue, odontogenic epithelium, and sometimes calcification. (05 Mar 2000) |
| ovarian fibroma | <radiology> Bilateral in 10%, malignant counterpart (fibrosarcoma) very rare, associated with Meigs syndrome (12 Dec 1998) |
| telangiectatic fibroma | <tumour> A benign neoplasm of fibrous tissue in which there are numerous, small and large, frequently dilated, vascular channels. Synonym: angiofibroma. (05 Mar 2000) |
| fibroma | <oncology, tumour> A benign (non-cancerous) tumour which consists of fibrous tissues or connective tissue. (09 Oct 1997) |