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Related to nonossifying fibroma: Fibrous dysplasia, Ober test


A benign tumor composed primarily of fibrous connective tissue. Also known as fibroid tumor.



a mature benign tumor of connective tissue, which can occur in any part of the body. Fibromas may be diffuse or encapsulated, depending on the nature of their growth. Fibroblasts are the source of fibromas, hence their other name, fibroblastomas. The symptoms and the course of a fibroma depend on the site and the rate of growth. Malignant degeneration sometimes occurs. Fibromas are treated surgically.

References in periodicals archive ?
If periostitis is present, fibrous dysplasia, solitary bone cyst, nonossifying fibromas, and enchondromas can be removed from consideration unless complicated by fracture.
Differential diagnosis for lesions that centered within the thyroid or crycoid cartilage includes giant cell reparative granuloma, brown tumor of hyperparathyroidism, osteoblastoma, chondroblastoma, chondrosarcoma, chondroma, aneurysmal bone cyst, nonossifying fibroma, foreign body reaction, benign fibrous histiocytoma, malignant fibrous histiocytoma, osteosarcoma with abundant giant cells, and carcinoma (including spindle cell or sarcomatoid carcinoma) with giant cells.
Fibrous cortical defect (FCD) and nonossifying fibroma (NOF) describe the same histologically benign entity.
The differential diagnosis of fibro-osseous lesions of the temporal bone includes fibrous dysplasia, meningioma, aneurysmal bone cyst, unicameral cyst, ossifying or nonossifying fibroma, Paget's disease, osteochondroma, giant cell tumor, eosinophilic granuloma exostosis, osteoma, and sarcomatous neoplasms.