title: Cerebral cavernous malformations with dynamic and progressive course: correlation study with vascular endothelial growth factor.
abstract: BACKGROUND
  Cerebral cavernous malformations (CCMs) are reported to exhibit a wide range of dynamic patterns including growth, regression, and de novo formation, which generally show slow and steady courses. Although the pathogenesis of CCMs is not well known, vascular endothelial growth factor (VEGF) has been suggested as a possible mediating factor.
  
  
  OBJECTIVE
  To report CCMs showing rapid progression over a short period and to investigate these biological characteristics.
  
  
  METHODS
  Experimental study.
  
  
  METHODS
  Tertiary referral center, neurology department. Patient A 40-year-old man was admitted because of a left-sided numbness, vertigo, and ataxia, which were attributed to a pontine hemorrhage. He had experienced a left-sided weakness 6 months before admission, and thereafter had complained of intermittent headache. Serial brain magnetic resonance images showed multiple intracerebral microhemorrhages throughout the cerebral hemispheres. A biopsy of the lesion confirmed the diagnosis of CCM.
  
  
  METHODS
  We investigated the expression of VEGF by immunohistochemistry of the biopsy specimen. Dynamic patterns of CCMs, obtained with spin-echo magnetic resonance images with gradient-echo sequences, were compared with serial serum VEGF concentrations, determined by enzyme-linked immunosorbent assay.
  
  
  RESULTS
  Immunohistochemistry of the specimen displayed increased VEGF expression. Serial magnetic resonance images during 7 months showed dynamic signal changes of the preexisting lesions and 15 de novo formations in many cortices. The VEGF level in serum increased during this dynamic period and became normal during the steady and resolving stages.
  
  
  CONCLUSIONS
  Cerebral cavernous malformations can be progressively deteriorating. The endothelial proliferation induced by VEGF is likely to be an important aspect of the pathogenetic mechanisms of CCMs.
authors: Department of Neurology and Clinical Research Institute, Seoul National University Hospital, Seoul, South Korea.
authors: Keun-Hwa
authors: KH
authors: Jung
authors: Kon
authors: K
authors: Chu
authors: Sang-Wuk
authors: SW
authors: Jeong
authors: Hee-Kwon
authors: HK
authors: Park
authors: Hee-Joon
authors: HJ
authors: Bae
authors: Byung-Woo
authors: BW
authors: Yoon
mesh_terms: D000328:Adult; D002543:Cerebral Hemorrhage / Q000209:etiology / Q000473:pathology; D018450:Disease Progression; D004797:Enzyme-Linked Immunosorbent Assay; D005625:Frontal Lobe / Q000378:metabolism / Q000473:pathology*; D020786:Hemangioma, Cavernous, Central Nervous System / Q000150:complications / Q000378:metabolism* / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D008279:Magnetic Resonance Imaging; D008297:Male; D042461:Vascular Endothelial Growth Factor A / Q000097:blood / Q000378:metabolism*
chemical_list: D042461:Vascular Endothelial Growth Factor A