Case 180. Reference case 180A

       
  Verruca vulgaris seen in the forearm of 13 y-o male, showing papillomatosis and hyperparakeratosis with koilocytosis (HE).  
       

 

  Hypergranulosis with nuclear inclusions and perinuclear koilocytic changes is evident. Vacuoles remaining in the cornified layer are suggestive of HPV infeciton.