benign fibrous histiocytoma of bone
Introduction
Introduction to bone benign fibrous histiocytoma Corresponding to bone malignant fibrous histiocytoma, benign fibroblastic histiocytoma (BFH), BFH and nonossifying fibroma (NOF) and metaphysial fibrous defect (MFD) Similar in organizational form, sometimes it is listed as the same disease, making the three diseases more confusing in name. basic knowledge The proportion of illness: 0.001% Susceptible people: no specific population Mode of infection: non-infectious Complications: fracture
Cause
Causes of benign fibrous histiocytoma
(1) Causes of the disease
The cause is unknown.
(two) pathogenesis
The histological features of the tumor are mainly vortex or spoke-like fibrous tissue and tissue cells that phagocytose lipids and hemosiderin, ie, foam cells, with varying amounts of collagen fibers and fibroblasts, collagen fibers and fibroblasts. The proportion varies in different cases or different parts. Fusiform fibroblasts are called facultative fibroblasts and have the ability to transform into tissue cells. Foam cells transformed into tissue cells form a focal distribution. The cells appear prominent in the field of vision. If the above two components exist, the diagnosis can be established. In addition, multinucleated giant cells and lymphocytes can be seen.
Prevention
Benign fibrous histiocytoma prevention
The focus is on the popularity of oncology-related medical knowledge, enabling people to increase their knowledge and understanding of bone tumors and to increase vigilance. Health conditions and improved quality of health care are the guarantees of early detection. Pain in the proximal joints with no history of trauma, especially in adolescents should be treated as soon as possible. This disease may be related to some external stimuli, such as X-rays, etc., should avoid contact and attention to protection. Some benign lesions can also be converted into osteosarcoma, such as osteochondroma, giant cell tumor, bone fiber dysplasia, etc., patients with these diseases should be reviewed regularly according to the doctor's advice.
Complication
Benign fibrous histiocytoma complications Complications
Sometimes it is possible to have a rational fracture.
Symptom
Benign fibrous histiocytoma symptoms Common symptoms Bone pain
The clinical symptoms were mainly painful, the shape of the limbs was swollen, and it was easy to be found. The tumor signs in the deeper parts were not obvious, and the first diagnosis was due to pathological fractures, accounting for 16%.
Examine
Examination of benign fibrous histiocytoma
From the X-ray film, the lesions are mostly in the long bones 3 to 5 cm from the tarsal plate. A few of them are more extended to the near diaphysis, often eccentrically growing. The lesions make the original trabecular bones rupture and translucent, and the tumor in the medullary cavity is compressed to the cortical bone. Dilatation, thinning and hardening, the range of lesions is clear, there may be compartments within the room, the longitudinal axis of the lesion is often consistent with the long bone. If the pathological fracture is combined, the periosteal reaction can be seen. The performance of the disease on the X-ray film is typical, such as The clinician has sufficient knowledge of the disease and the diagnosis is not difficult.
Diagnosis
Diagnosis and differentiation of benign fibrous histiocytoma
diagnosis
According to medical history, clinical manifestations and typical X-ray photographs, diagnosis is not difficult.
Differential diagnosis
Attention should be paid to the differentiation of bone cysts (single or multiple rooms), fibrous cortical bone defects and bone fiber dysplasia.
