(1997; 132 pages) [French] [Spanish]
Basal cell and squamous cell carcinomas
Basal cell carcinomas are very common. The lesions may be nodular, pigmented, superficial or infiltrative. The great majority of these lesions occur in sun-exposed areas, and exposure to ultraviolet light promotes their development. Squamous cell carcinomas can be either localized or invasive with involvement of the lymph nodes. The lesions are erythematous, hyperkeratotic plaques which are sharply demarcated from surrounding tissue.
Basal cell carcinomas should be treated by excision, curettage, electrosurgery or radiotherapy, while squamous cell carcinomas should be treated by excision. Ill-defined, basal cell or squamous cell carcinomas, or recurrent lesions may require extensive surgical resection or other specialized surgical techniques, which require highly trained specialists.