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AJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology 27:427-429, February 2006
© 2006 American Society of Neuroradiology

CASE REPORT
BRAIN

Intracranial Epidermoid Cyst with Hemorrhage: MR Imaging Findings

C.-Y. Chen^a,b, J.-S. Wong^a, S.-C. Hsieh^a,b, J.-S. Chu^a,c and W.P. Chan^b

^a From the School of Medicine, Taipei Medical University, Taipei, Taiwan, Republic of China
^b Department of Radiology, Taipei Medical University, Taipei, Taiwan, Republic of China
^c Department of Pathology, Taipei Medical University, Taipei, Taiwan, Republic of China

Address correspondence to Wing P. Chan, MD, Department of Radiology, Taipei Medical, University-Municipal Wan Fang Hospital, 111 Hsing Long Road, Section 3, Taipei 116, Taiwan, Republic of China

SUMMARY: We present a case of a 28-year-old woman with a cerebellopontine angle and prepontine cistern epidermoid cyst with unusual signal intensity. She presented with cranial nerve neuropathy and unsteady gait. MR imaging showed a tumor mass with central area of hemorrhage and a focal area of heterogeneous signal intensity with spotty enhancement, which correlated histologically to old blood in a cystic lumen and granulation of a cystic wall, with a large area of hemorrhage and mild vascularity.