Case 162. Actinomycosis of skin (54 y-o M)
         
   
Biopsy from the palpebral nodule
   
         
   
Key words : Actinomyces israelii, actinomycetoma, grain
   
     
 
     
A large basophilic grain is formed in the submucosal layer (HE).   The grain is composed of argyrophilic fine filamentous bacilli, confirming the diagnosis of actinomycetoma (Grocott).