Introduction. The nosology of verrucous carcinomas is a complicated pr
oblem. The name given to each manifestation may vary with localization
. We report our findings in four cases with this skin disease. Case re
ports. Four patients, 76, 52, 76 and 55 years of age, presented with v
errucous carcinoma. In the first case, the disease began with a chroni
c varicose ulceration localized on the anterolateral aspect of the rig
ht leg. In the second, the lesion was localized on the lateral aspect
of the right leg facing a zone showing signs of repeated microtraumati
sms. HPV-18 was isolated in this patient. The third case had a vegetat
ing lesion on the dorsal aspect of the right hand, simulating a wart.
The fourth case is a historic case in which a voluminous tumour develo
ped over several years on an ulceration of the medial aspect of the le
ft malleole, associated with trauma and venous insufficiency. Comments
. The three recent cases did not raise any particular problem with dia
gnosis. The diagnosis in the historical case, published in 1969 as a v
egetating pyoderma, was corrected later. This illustrates the nosology
problems raised in this particular form of epidermoid carcinoma which
often has an impressive clinical presentation and a reassuring histol
ogy. The group of verrucous carcinomas include different skin or mucos
al lesions formerly designated as oral florid papillomatosis, Buschke-
Lowenstein acuminate condyloma or pseudo-epitheliomatous vegetating py
oderma. Cuniculatum epithelioma was added to this group for simplifica
tion although this rarely observed lesion is a separate entity. Conclu
sion. The pathology diagnosis of verrucous carcinoma requires large an
d deep biopsy. Treatment is surgical and regular follow-up is needed a
s for all malignant rumours.