| Clinical characteristics | 
        Number of patients | 
        % | 
       
      
        | Anemia | 
          | 
        28 | 
        100 | 
       
      
        Glossitis  
          Melanodermia | 
          | 
        22 
          22 | 
        78.57 
          78.57 | 
       
      
        | Neurology  | 
        Lower limbs paresthesia 
          Sensorial 
          Ataxia 
          Sub-acute combined    degeneration 
          of the spinal cord  | 
        24
           
           
           
          3 
            1 | 
        85.71
           
           
           
          10.71 
            3.57 | 
       
      
        | Vascular    involvements | 
        DVT* 
          IS** | 
        2 
          1 | 
        7.14 
          3.57 | 
       
     
    *DVT: Deep Venous Thrombosis; **IS: Ischemic Stroke |