False-positive MRI detection of recurrent or metastatic pediatric infratentorial tumors.

Journal Article

Gadolinium-DTPA enhanced MRI is the modality of choice when imaging central nervous system infratentorial tumors in the pediatric population. The detection of a new enhancing lesion following initiation of therapy is typically considered pathognomonic for recurrent or metastatic tumor. We report two pediatric patients with infratentorial central nervous system tumors who demonstrated new areas of enhancement with gadolinium-DTPA enhanced MRI following initiation of multimodality therapy. Both patients had surgical biopsy of the new lesions with histologic review failing to demonstrate viable tumor. These studies suggest caution in considering new enhancing lesions detected by MRI in a child with a brain tumor pathognomonic for new sites of active tumor.

Full Text

Duke Authors

Cited Authors

  • Nelson, SC; Friedman, HS; Hockenberger, B; Vandersteenhoven, JJ; Gray, L; Touri, SL; Oakes, WJ

Published Date

  • 1993

Published In

Volume / Issue

  • 21 / 5

Start / End Page

  • 350 - 355

PubMed ID

  • 8492750

International Standard Serial Number (ISSN)

  • 0098-1532

Language

  • eng

Conference Location

  • United States