Discrimination of brain abscess from necrotic or cystic tumors by diffusion-weighted echo planar imaging

Magn Reson Imaging. 1996;14(9):1113-6. doi: 10.1016/s0730-725x(96)00237-8.


Diagnostic difficulties in discriminating brain abscess from necrotic or cystic tumors using conventional CT and MRI have been reported. In this article, we examine the diagnostic ability of diffusion-weighted imaging to discriminate brain abscess from necrotic or cystic tumors. In previous reports, necrotic or cystic tumors show low signal intensity in diffusion-weighted imaging, indicating a high apparent diffusion coefficient (ADC). In contrast, in our study, high signal intensity was observed in the abscess fluid, associated with low ADC.

Publication types

  • Case Reports
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Brain Abscess / diagnosis*
  • Brain Neoplasms / diagnosis*
  • Cysts / diagnosis
  • Diagnosis, Differential
  • Echo-Planar Imaging* / methods
  • Humans
  • Male
  • Middle Aged
  • Necrosis