[Verrucous carcinoma of the penis arising from a lichen planus. A true preneoplastic lesion?].
BACKGROUND
Up to 30% of squamous cell carcinomas of the penis arise from a lichen sclerosus, but very few reports in which lichen planus was the preexisting lesion have been published. We report a male with verrucous carcinoma of penis that developed in an area of lichen planus.


METHODS
A 53-year-old male presented with an exophytic tumor on the glans penis that had been present for about 6 months. The lesion developed in a previously biopsied area of lichen planus hypertrophicus. After excision, histological diagnosis was verrucous carcinoma.


CONCLUSIONS
The development of any subtype of squamous cell carcinoma of penis in a lichen planus can be coincidental, or a neoplastic transformation of lichen planus can take place.
Alvarez Alvarez
C
C
Servicio de Anatomia Patológica, Hospital Povisa, Vigo, Pontevedra. capialvarez@yahoo.com
Meijide Rico
F
F
Rodríguez González
L
L
Antón Badiola
I
I
Zungri Telo
E
E
Antonio Ortiz-Rey
J
J
D018289:Carcinoma, Verrucous / Q000473:pathology*; D006801:Humans; D008010:Lichen Planus / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D010257:Paraneoplastic Syndromes / Q000473:pathology*; D010409:Penile Diseases / Q000473:pathology*; D010412:Penile Neoplasms / Q000473:pathology*