- Rare congenital d/o
- AVMs within lungs, nose, mouth, GI tract→ duodenum, stomach, colon
- Right to left shunt that occurs within AVMs can be path for paradoxical emboli (stroke, CNS abscess)
 
   
           
        
        
        
        
        
          
          
            
  
      
    
    
      
        
            - Onset typically in teens
- Cryptic GI bleeds/iron defic anemia
- Cryptic stroke or CNS abscess
 
   
           
        
        
        
          
          
            
  
      
    
    
      
        
            - Recurrent nose bleed
- Telangiectasis on nasal mucosa, lips, tongue