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올리브핵 퇴행성비대의 자기공명영상 소견

Other Titles
 MR Imaging Findings of Hypertrophic Olivary Degeneration 
Authors
 김도중  ;  전평  ;  김동익 
Citation
 Journal of the Korean Radiologist Society (대한방사선의학회지), Vol.36(6) : 933-938, 1997 
Journal Title
 Journal of the Korean Radiologist Society (대한방사선의학회지) 
ISSN
 0301-2867 
Issue Date
1997
Keywords
Brain, atrophy ; Brain, hemorrhage ; Brain, MR
Abstract
PURPOSE: To describe the magnetic resonance (MR) imaging findings of hypertrophic olivary degeneration (HOD). MATERIALS AND METHODS: MR images of seven patients with HOD were retrospectively reviewed. Two were women and five were men, and they were aged between 48 and 65 (mean 58) years. Imaging examinations were performed with a 1.5-T unit, and the findings were used to evaluate the size and signal intensity of olivary lesions. The time interval from hemorrhagic ictus to MR imaging was between two and 30 months. Follow-up examinations were performed in two patients. RESULTS: All four patients with hemorrhages involving the central tegmental tract in the pons or midbrain showed ipsilateral HOD. Among these four, bilateral HOD was seen in one patient with hemorrhage involving the bilateral central tegmental tract, and in another with tegmental hemorrhage extending to the ipsilateral superior cerebellar peduncle. One patient with cerebellar hemorrhage involving the dentate nucleus had contralateral HOD. Two patients with multiple hemorrhages involving both the pons and cerebellum showed bilateral HOD. Axial MR images showed mild enlargement of the involved olivary nucleus, with high signal intensity on both proton density and T2 weighted images. There was no apparent enhancement on postcontrast T1-weighted images. CONCLUSION: MR imaging can clearly distinguish secondary olivary degeneration from underlying pathology involving the central tegmental tract in the pons or midbrain and cerebellum. These olivary abnormalities should not, however, be mistaken for primary medullary lesions.
Files in This Item:
T199803167.pdf Download
DOI
10.3348/jkrs.1997.36.6.933
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Dong Ik(김동익)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/177083
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