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  • 1
    Electronic Resource
    Electronic Resource
    Sex differences in morphology of the brain stem and cerebellum with normal ageing (1998)
    Springer
    Neuroradiology 40 (1998), S. 788-792 
    Details
    ISSN: 1432-1920
    Keywords: Key words Magnetic resonance imaging ; Ageing ; Sex ; Brain stem ; Cerebellum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The cerebral hemispheres become atrophic with age. The sex of the individual may affect this process. There are few studies of the effects of age and sex on the brain stem and cerebellum. We used MRI morphometry to study changes in these structures in 152 normal subjects over 40 years of age. In the linear measurements, men showed significant age-associated atrophy in the tegmentum and pretectum of the midbrain and the base of the pons. In women, only the pretectum of the midbrain showed significant ageing effects after the age of 50 years, and thereafter remained rather constant. Only men had significant age-associated reduction in area of the crebellar vermis area after the age of 70 years. Both men and women showed supratentorial brain atrophy that progressed by decades. There were significant correlations between supratentorial brain atrophy and the diameter of the ventral midbrain, pretectum, and base of the pons in men, and between brain atrophy and the diameter of the fourth ventricle in women.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050685
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Periosteal ganglion: a report of three new cases including MRI findings and a review of the literature (1996)
    Springer
    Skeletal radiology 25 (1996), S. 153-157 
    Details
    ISSN: 1432-2161
    Keywords: Key words Periosteal ganglion ; Ganglion ; Bone neoplasms ; Diagnosis ; MRI
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Objective. To clarify the clinicopathological features of periosteal ganglion. Design. Three patients with periosteal ganglion were studied clinicopathologically. Patients. One patient was selected from the files of our institute and two from a consultation file. Results and conclusions. All three lesions were located over the medial aspect of the tibia. Plain radiographs showed cortical erosions of varying degrees and mild periosteal reaction of the medial side of the tibia. MR images demonstrated well-circumscribed lesions overlying the cortical bone of the tibia, shown as low-intensity areas on T1-weighted images. On T2-weighted images, lesions were homogeneous, lobulated, and showed a characteristic markedly increased signal intensity. These findings are helpful in making a diagnosis of periosteal ganglion. Each patient had an uneventful clinical course after an excision involving the wall of the ganglion, the adjoining periosteum, and the underlying sclerotic cortical bone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002560050053
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Osteoblastoma-like osteosarcoma (2000)
    Springer
    Skeletal radiology 29 (2000), S. 656-659 
    Details
    ISSN: 1432-2161
    Keywords: Keywords Osteoblastoma-like osteosarcoma ; Osteosarcoma ; Aggressive osteoblastoma ; Fibula ; Radiography ; MRI
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  We report an osteoblastoma-like osteosarcoma in the right proximal fibula in a 22-year-old woman. Radiographs showed an irregular osteolytic lesion from the metaphysis to the epiphysis in the proximal fibula with partial destruction of cortical bone. Tissue from a biopsy indicated a typical osteoblastoma. Curettage and bone graft was performed. One year after the surgery, local recurrence occurred, and a wide excision was performed. Histological examination of the en-bloc surgical specimen revealed the tumor had permeated through the host bony trabeculae, although the nuclear atypia was not marked. Immunohistochemical expression of MIB-1 was detected in 9.0% of cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002560000271
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Cystic fibrous dysplasia mimicking giant cell tumor: MRI appearance (2000)
    Springer
    Skeletal radiology 29 (2000), S. 45-48 
    Details
    ISSN: 1432-2161
    Keywords: Key words Cystic fibrous dysplasia ; Giant cell tumor ; Femur ; X-ray ; MRI
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  We report the case of a 43-year-old man who presented with an osteolytic and expansive lesion in the left distal femur mimicking a giant cell tumor. Magnetic resonance imaging (MRI) showed that most of the lesion was cystic, and histological examination revealed fibrous dysplasia with marked cystic degeneration. Radiographic findings of cystic fibrous dysplasia in the end of a long bone may be similar to those of a giant cell tumor, and a biopsy is essential for the final diagnosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002560050008
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    Paper (German National Licenses)
    Fulltext
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