2025年1月10日 · Non-ossifying fibromas (NOF) are benign and generally self-limiting osteoclastic giant cell-rich bone tumors typically found in the metaphyses of long bones. They are classified as osteoclastic giant cell-rich bone tumors 1,2. NOFs account for the 'N' in the popular mnemonic for lucent bone lesions FEGNOMASHIC.

3 天之前 · Non-Ossifying Fibromas are benign fibrogenic lesions that result from dysfunctional ossification that are most commonly found in the metaphysis of long bones. Patients typically present between the ages of 5 and 15 with an asymptomatic …

2025年2月25日 · Aneurysmal bone cysts (ABC) are benign expansile osteoclastic giant cell-rich bony neoplasms, composed of numerous blood-filled channels and cystic spaces 1. ABC accounts for the 'A' in the popular mnemonic for lucent bone lesions FEGNOMASHIC.

2012年11月29日 · NOF is typically asymptomatic and the lesion is found incidentally. NOF is considered a developmental bone defect, not a neoplastic lesion, because it is usually self-limiting [1-3]. In contrast to NOF, aneurysmal bone cyst (ABC) is a locally destructive bone lesion .

2010年4月10日 · Many sclerotic lesions in patients > 20 years are healed, previously osteolytic lesions which have ossified, such as: NOF, EG, SBC, ABC and chondroblastoma. In order to classify osteolytic lesions as well-defined or ill-defined, we need to look at the zone of transition between the lesion and the adjacent normal bone.

2025年3月8日 · Aneurysmal Bone Cysts are benign, non-neoplastic, reactive bone lesions that most commonly occur in the femur and tibia. The condition typically presents in patients less than 20 years of age with focal pain and swelling.

2015年2月1日 · Non-ossifying fibroma (NOF) and solid ABC could appear fairly similar according to some authors. Although NOF is bulging and off-center on the long bone metaphysis, it is generally asymptomatic, with a full aspect on MRI, and biopsy is rarely useful.

ABCs are metaphyseal, excentric, bulging, fluid-filled and multicameral, and may develop in all bones of the skeleton. On MRI, the fluid level is evocative. It is mandatory to distinguish ABC from UBC, as prognosis and treatment are different.

2024年2月29日 · These findings are characteristic of nonossifying fibroma (NOF). The fact that the lesion was asymptomatic and caused pathological fracture due to trauma is another supportive feature in this case. Curvilinear trabeculae of woven bone are a feature of fibrous dysplasia of bone.

Nonossifying fibromas (NOFs) are benign lesions that unusually occur in the mandible. Nonossifying fibromas are asymptomatic and spontaneous resolution at skeletal maturity. Nonossifying fibromas associated with aneurysmal bone cyst (ABC) are very rare.