<unk> s are benign tumors that are composed of fibrous or connective tissue. They can grow in all organs, arising from mesenchymal tissue. The term "fibroblastic" or<unk> tous" is used to describe tumors of the fibrous connective tissue. There is no classification system established for<unk> . Based on the pathophysiology and location of the tumor,<unk>  may be classified into hard<unk> , soft<unk> , angiofibroma, cystic<unk> , chondromyxoid<unk> , desmoplastic<unk> , nonossifying<unk> , ossifying<unk> , nuchal<unk> , collagenous<unk> ,<unk>  of tendon sheath, perifollicular<unk> , pleomorphic<unk> , uterine<unk> , neurofibroma, and ovarian<unk> . On gross pathology, polypoid lesion which is usually small, is characteristic findings of oral<unk> . On microscopic histopathological analysis, fibrous stroma, collagen bundles, prominent vessels, and overlying squamous mucosa with hyperkeratosis and focal ulceration are characteristic findings of oral<unk> . On gross pathology, well circumscribed, metaphyseal lesion, and fragments of white-grey rubbery tissue are characteristic findings of chondromyxoid<unk> . On microscopic histopathological analysis, spindle cells or stellate cells in a myxoid or chondroid stroma, lobules with hypocellular centers and hypercellular peripheries, giant cells in a hypercellular periphery, and scattered calcifications are characteristic findings of chondromyxoid<unk> . On gross pathology, fleshy, fibrous, yellow or tan-brown lesion with variable areas of haemorrhage are characteristic findings of non-ossifying<unk> . On microscopic histopathological analysis, spindle cells without cytologic atypia are arranged in a storiform pattern, scattered chronic inflammatory cells and benign giant cells, foam cells and hemosiderin deposition, and mitoses are characteristic findings of non-ossifying<unk> . On gross pathology, discrete mass that is well delineated from surrounding bone, tan-white, rubbery cut surface, firm to gritty and no encapsulation are characteristic findings of ossifying<unk> . On microscopic histopathological analysis, haphazardly distributed lamellated bony spicules on a background of fibrous stroma, a zonal architecture with a center of immature bone surrounded by more mature lamellar bone, and central spicules of woven bony trabeculae are lined by a layer of osteoblasts are characteristic findings of ossifying<unk> . Common causes of oral<unk>  include trauma or chronic irritation. There are no established causes for chondromyxoid<unk> , non-ossifying<unk> , cemento-ossifying<unk> , and ossifying<unk> . Patients of all age groups may develop<unk> s. However, the majority of<unk> s are observed in adults.<unk> s usually affects men and women equally, however certain<unk> s may show gender predilection.<unk> s are most often observed in adults, but they may occur in individuals of any age and either sex. The majority of patients with<unk>  are asymptomatic. The most common symptoms of<unk>  include pain and swelling of the affected area. Biopsy is the diagnostic study of choice for<unk> .
Fibroma
Angiofibroma
Angiosarcoma
Elastofibroma
Fibrous dysplasia
Sarcoma
Liposarcoma
Adenoma