Detection of human papilloma virus type 60 in a case of ridged wart

摘要

Viral warts show specific and different cytopathic effects, which are induced by distinct types of human papillo-mavirus (HPV) [1]. Among them, waits with inclusion bodies are known as inclusion warts. In 1994, Honda et al. proposed a term, ridged wart, for one type of inclusion wart [2]. Ridged warts are characterized clinically by slightly elevated, normal colored flat nodules, which retain sulci and crista of the skin. Various types of HPV cause different types of warts, e.g., myrmecia by HPV type 1 (HPV1), punctate warts by HPV63, pigmented warts by HPV4/65, small warts by HPV88 and common waits by HPV95 [1]. HPV60 is known to develop pigmented warts and epidermoid cysts on the palms and soles [3-5]. In addition, ridged warts are also caused by HPV60 [6].