Modic et al. in 1988 first described characteristic MRI changes in the vertebral body bone marrow and endplates, adjacent to degenerating intervertebral (iv) discs. Depending on the changes in T1 and T2 MRI signals, three types of lesions were identified: Type I lesions (low T1 and high T2 signal) are thought to be clinically active, due to increased blood flow within the bone. Type II lesions ...

Giant cell tumor (GCT) of bone is a giant-cell-rich bony lesion associated with abundant multinucleated osteoclast-type giant cells. It is a primary neoplasm of bone with characteristic clinical, radiological, and pathological features. It is an expansive and lytic lesion without periosteal reaction and prominent peripheral sclerosis. Giant cells are also seen in other diseases like giant cell ...

petrous apex lesions of temporal bone progress slowly. most of the time not only destruct this area but also involve neighbouring element. the symptoms of the neighbouring neuro-vasculare involvement we can recognize these lesions. the most common symptoms of involvement of the petrous apex are: headache, conductive hearing loss or sensorineural type, paresthesia and anesthesia of the trigemina...

chediak - higashi syndrome (chs) is a rare, primary immunodeficiency disorder with an autosomal recessive (ar) inheritance and characterized by re¬current infection, partial occulocutaneous albinism and an accelerated phase. in this report we describe clinical and laboratory findings from 6 chs pa¬tients. clinical and laboratory information of six patients who were referred to our center during...

The results of studies on the assessment new biomaterials from juvenile teeth for further use in surgical dentistry bone tissue repair are presented this work. comparative these materials and brefomatrices used was carried out. It shown that spectral properties dentin were similar to cortical according developed discriminant model characteristic changes Raman line intensities. calculated accura...

this study was aimed to investigate the use of panoramic radiography in patients with low bone mineral density (bmd) in order to diagnose and prevent osteoporotic fractures. panoramic radiographs of 60 patients  (20 men and 40 women) aged from 40 to 70 years with cortical thicknesses of less than 3 mm in the mandibular angle were selected from patients referred to a dentomaxillofacial radiology...

BACKGROUND Aneurysmal bone cyst is an expansile bone lesion, non-neoplastic in nature, occurring most commonly in long bones. It is uncommon in facial bones and exceptionally rare in ethmoid bone. Ten cases of aneurysmal bone cysts of ethmoid bone have been reported so far. CASE REPORT A young adolescent presented with decreased vision and pain in the right eye. MRI revealed an expansile lesi...

Abstract Background The extraction of DNA from skeletal remains with good quality and quantity is often challenging for the ability to generate typing. Previous studies demonstrated total demineralization fresh teeth bones; however, application in old has been less performed. To obtain high yield amount extracted remains, objective this study was focused on exploring factors influencing process...

Ultrasound is useful in demonstrating bone mineral density of regenerating osseous tissue as well as structural alterations. A proposed ultrasound method, which included ultrasonography and acoustic parameters measurement, was employed to evaluate its efficacy in monitoring the bone callus changes in a rabbit tibial distraction osteogenesis (DO) model. The findings demonstrated that ultrasonogr...

The anisotropic microstructure of bone tissue is crucial for appropriate mechanical and biological functions of bone. We recently revealed that the construction of oriented bone matrix is established by osteoblast alignment; there is a quite unique correlation between cell alignment and cell-produced bone matrix orientation governed by the molecular interactions between material surface and cel...