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Ventriculus terminalis in adults: unusual magnetic resonance imaging features and review of the literature.

 Sang Hyun Suh  ;  Tae-Sub Chung  ;  Seung-Koo Lee  ;  Yong-Eun Cho  ;  Keun Su Kim 
 Korean Journal of Radiology, Vol.13(5) : 557-563, 2012 
Journal Title
 Korean Journal of Radiology 
Issue Date
OBJECTIVE: The ventriculus terminalis (VT) in adults is a rare pathology. We report various MR imaging features of the adult VT. MATERIALS AND METHODS: Ten patients were included in this retrospective review.. All patients had undergone magnetic resonance (MR imaging with a surface coil that used two different 1.5T MR systems. All patients had undergone initial and follow-up MR imaging with contrast enhancement using gadopentate dimeglumine. Three patients underwent additional MR imaging using the echocardiogram-gated spatial modulation of magnetization (SPAMM) technique. If a shift in tagging band during the systolic phase was less than half of the band space, it was defined as a "non-pulsatile fluid". Two neuroradiologists independently reviewed these images, while clinical symptoms and outcomes were statistically analyzed between the treated and non-treated group. RESULTS: All cases presented an intramedullary cystic lesion in the conus medullaris and showed the same signal intensity as CSF. Three VTs had intracystic septation and cord edema, which were pathologically confirmed after surgery; two of these were associated with kyphotic deformity and spinal arteriovenous malformation. SPAMM-MRI of 3 patients demonstrated non-pulsatile fluid motion within the VT. In the treated group, clinical symptoms improved better than the non-treated group. CONCLUSION: The adult VT shows some unusual imaging features, including septation, cord edema, and coexistence of a spinal AVM, as well as the typical findings. Surgical maneuvers may be considered as a treatment option in adult VT with progressive neurological symptoms.
Appears in Collections:
1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실)
1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실)
Yonsei Authors
김근수(Kim, Keun Su) ; 서상현(Suh, Sang Hyun) ; 이승구(Lee, Seung Koo) ; 정태섭(Chung, Tae Sub) ; 조용은(Cho, Yong Eun)
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