Case 181. HPV-1 infection (myrmecia) (15 y-o M)

　 　 　 　
　
Excision of a nodular skin lesion on the sole
 　
　 　 　 　

　

 　 Inward growth of the thickened keratinocytes, cytoplasmic basophilic inclusions, groundglass nuclei are diagnostic of myrmecia, caused by HPV, type 1 (HE, low power).