RT Journal Article
SR Electronic
T1 Spontaneous decrease of a pilocytic astrocytoma in neurofibromatosis type 1.
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 1691
OP 1694
VO 17
IS 9
A1 Leisti, E L
A1 Pyhtinen, J
A1 Poyhonen, M
YR 1996
UL http://www.ajnr.org/content/17/9/1691.abstract
AB A patient with type 1 neurofibromatosis was followed up with neuroimaging over a period of 12 years. A spontaneous decrease in the size of a histologically verified pilocytic astrocytoma was documented on serial CT and MR examinations. Subsequent studies showed the development of a lesion in the contralateral hemisphere with mass effect and contrast enhancement. Results of a biopsy disclosed normal brain tissue; follow-up imaging showed a spontaneous decrease in the size of this abnormality.