ossifying fibroma
Introduction
Introduction to ossifying fibroma Ossifying fibroma is caused by congenital bone dysplasia. The tumor is composed of fibroids and bone-like substances, mainly in the tibia, and sometimes in the tibia. This disease often involves anterior humerus, the course of disease is the same as that of hamartoma, and it is different from fibrous tissue with poor structure. The disease occurs in adolescents, with more women than men. There is no clinical symptom in the early stage, and the tumor grows and causes symptoms such as swelling of the jaw, facial deformity, and tooth displacement. Younger patients should not be operated on, and osteotomy or orthopedic surgery is feasible after 10 years of age. X-ray findings generally show an osteolytic lesion in an eccentric cortical bone. The surface of the cortical bone below the periosteum has more or less swelling, which is very thin, while the osteolytic lesions on the medial and medullary cavity of the cortical bone are clearly defined. The bone hardening line is wrapped, the medullary cavity is often narrowed, and the lytic bone can be single or multiple, which is rare in the total circumference of the humerus. However, if the lesion is in the tibia, it is full of the circumference and the lesion is more common on the tibia and/or Or it is rare to invade the entire backbone. basic knowledge Sickness ratio: 0.05% Susceptible people: no specific population Mode of infection: non-infectious Complications: bone tumor osteomyelitis
Cause
Causes of ossifying fibroma
Cause:
The cause of ossifying fibroma is unknown and may be related to chromosomal abnormalities.
Prevention
Ossifying fibroma prevention
Small or localized ossifying fibroma should be completely removed by early surgery. For large diffuse or multiple bone dysplasia, surgery is usually performed after puberty. Because its boundary is unclear, its surgery can improve its function. Partially resected tumors with obstruction and facial deformity, but sometimes partial resection is difficult to achieve the purpose of improving facial deformity. This requires resection of the jaw, and after mandibular resection, autologous bone graft can be used immediately to repair the bone defect, maxillary After bone resection, the artificial prosthesis can be used to restore its defect and function.
Complication
Osteofibroma complications Complications bone tumor osteomyelitis
Local compression, different complications may occur due to different tumor sites.
Symptom
Symptoms of ossifying fibroma Common symptoms Eyelid pain Eyeball protrusion Facial deformity Secondary infection Jaw sulcus Double vision
Ossifying fibroma is common in young people, multiple single, can occur in the upper and lower jaw, but more common in sexual bones, more women than men, this growth is slow, early no symptoms, not found After the tumor is gradually enlarged, it may cause swelling and enlargement of the nucleus, causing facial deformity and tooth displacement. It occurs in the examination of the bone, often on the humerus, and may affect the maxillary sinus and the sac, causing the eyelid to be deformed, the eyeball to protrude or move. Position, or even double vision, the mandibular ossification of the tumor in addition to causing facial deformities, can lead to occlusion disorders, sometimes secondary infections, accompanied by osteomyelitis.
Examine
Examination of ossifying fibroma
X-ray findings generally show an osteolytic lesion in an eccentric cortical bone. The surface of the cortical bone below the periosteum has more or less swelling, which is very thin, while the osteolytic lesions on the medial and medullary cavity of the cortical bone are clearly defined. The bone hardening line is wrapped, the medullary cavity is often narrowed, and the lytic bone can be single or multiple, which is rare in the total circumference of the humerus. However, if the lesion is in the tibia, it is full of the circumference and the lesion is more common on the tibia and/or Or it is rare to invade the entire backbone.
Diagnosis
Diagnosis and differentiation of ossifying fibroma
Diagnose based on
1. More common in young people, occurring in the upper or lower jaw, but more common in the mandible.
2. The jaw is swollen and swollen, the texture is hard, the facial deformity and the tooth are displaced, the bite is disordered, but the teeth are not loose.
3. The upper jaw affects the adjacent bones, causing deformities in the corresponding parts.
4. X-ray film showed diffuse expansion of the diseased bone, and there was no obvious boundary between the lesion and the normal bone, and it was a frosted glass or multi-vessel-like cystic shadow.
5. Histopathological examination confirmed the diagnosis.
The diagnosis is easy, and it needs to be distinguished from the poor fibrous structure. Sometimes it needs to be differentiated from the tissue fibroids on the image, especially when the lesion is adjacent to the metaphysis, but the histological difference between the two tumors is obvious.
