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  • 1
    Electronic Resource
    Electronic Resource
    MRI of pituitary adenomas: the position of the normal pituitary gland (1994)
    Springer
    Neuroradiology 36 (1994), S. 295-297 
    Details
    ISSN: 1432-1920
    Keywords: Pituitary adenoma ; Magnetic resonance imaging ; Gadolinium ; DTPA ; Normal pituitary gland
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The position of the normal pituitary gland, assessed using gadolinium-enhanced MRI was compared with the position found at surgery for pituitary adenoma in 25 patients. The tumours were five microadenomas and 20 macroadenomas. Using T1-weighted imaging, the anterior lobe could be differentiated on the sagittal image in five patients (20%) and on the coronal image in four (16%). The high intensity of the posterior lobe could be differentiated using T1-weighted sagittal imaging in 13 patients (52%). The normal pituitary gland, which enhanced more strongly than tumour, could be differentiated using Gd-DTPA-enhanced MRI on the sagittal images in 22 cases (88%) and on the coronal image in 17 (68%). In seven patients, the normal pituitary gland surrounded the tumour; it was displaced superiorly in 14 cases and superioposterorly in two but in no case was it displaced anteriorly or downwards.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00593264
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    CT scan of pituitary adenomas (1981)
    Springer
    Neuroradiology 20 (1981), S. 249-253 
    Details
    ISSN: 1432-1920
    Keywords: CT scan ; Pituitary adenomas ; Non-functioning adenomas ; PRL-secreting adenomas ; GH-secreting adenomas
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary CT scan is an extremely useful, almost harmless means of diagnosing pituitary adenomas. Growth hormone (GH)-secreting adenomas tend to have higher absorption coefficient on plain CT than the nonfunctioning and prolactin (PRL)-secreting adenomas. The absorption coefficient on contrastenhanced CT does not identify the specific type of adenoma. Ring-like enhancement was observed in five nonfunctioning and four PRL-secreting adenomas with suprasellar extension, while cystic components were observed in four nonfunctioning and four PRL-secreting adenomas. In three of ten cases of PRL-secreting microadenomas, the site corresponding to the adenoma was not enhanced, whereas the normal pituitary was. A correlation exists between the size of PRL-secreting adenoma and the serum PRL level, but not between the size of GH-secreting adenomas and the serum GH level.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00342092
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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