Case 167. Lyme borreliosis (56 y-o M)

       
  Biopsy from erythema chronicum migrans on the abdomen around the site of tick bite, that happened in a highland of Nagano  
       

 

  A centrifugally spreading erythematous lesion (migrating erythema) is seen around the site of tick bite (left-sided abdomen). At the 6th week, the erythema reached the chest wall (gross findings).