Assessment of Volumetric Growth Rates of Spinal Intradural Extramedullary Schwannoma
Spinal intradural schwannoma detected incidentally increased recently. Because there is little knowledge about natural history of spinal schwannoma, there is no consensus of treatment. Our hypothesis is as follows;
- Some schwannomas keep growing, the others do not.
- Foraminal schwannomas do not usually grow.
The investigators analyzed natural history and characteristics of 56 spinal schwannomas observed initially with accurate and reliable methods. Here the investigators displayed growing pattern and differential point of spinal schwannoma.
|Study Design:||Observational Model: Cohort
Time Perspective: Retrospective
|Official Title:||Assessment of Volumetric Growth Rates of Spinal Intradural Extramedullary Schwannoma: A Longitudinal Study of Natural History|
- Volumetric growth rate [ Time Frame: 12, 24, 36, 48, 72, 96,120,144 months ] [ Designated as safety issue: No ]
Biospecimen Retention: None Retained
The investigators analyzed MR images only
|Study Start Date:||June 1998|
|Study Completion Date:||August 2013|
|Primary Completion Date:||February 2012 (Final data collection date for primary outcome measure)|
Overall volumetric growth rate more over than 10%
Overall volumetric growth rate less than 10%
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|Korea, Republic of|
|Seoul National University Bundang Hospital|
|Seongnam, Kyenggi, Korea, Republic of, 110-769|
|Seoul Natl. Univ. Hospital|
|Seoul, Korea, Republic of, 110-769|
|Principal Investigator:||Chang-Hyun Lee, MD||Seoul Natl. Univ. Bundang Hospital|
|Study Chair:||Chun Kee Chung, MD, PhD||Seoul National University Hospital|