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RT Journal Article
SR Electronic
T1 Recurrent medulloblastoma: frequency of tumor enhancement on Gd-DTPA MR imaging.
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 583
OP 587
VO 11
IS 3
A1 Rollins, N
A1 Mendelsohn, D
A1 Mulne, A
A1 Barton, R
A1 Diehl, J
A1 Reyes, N
A1 Sklar, F
YR 1990
UL http://www.ajnr.org/content/11/3/583.abstract
AB Thirty-two children with medulloblastoma were evaluated postoperatively with conventional and gadolinium-enhanced MR imaging. Eleven patients had abnormal cranial MR studies; nine of these had recurrent tumor. In six patients recurrent tumor enhanced with Gd, while in the other three patients recurrent tumor did not enhance. The remaining two patients had areas of abnormal Gd enhancement that were caused by radiation-induced breakdown of the blood-brain barrier rather than by recurrent tumor. This study shows that not all recurrent medulloblastoma enhances and that the absence of Gd enhancement does not necessarily indicate the absence of recurrent tumor.