Examination revealed yellow to dark-brown, hairless, verrucous and micronodular lesions on the right temporal area of her scalp.
Lesions consist of erythematous papules, nodules, pustules, verrucous, or granulomatous lesions.
The typical ulcer is elevated, verrucous or fungating, with a soft base which is infiltrated with a seropurulent secretion.
At this point, the ulcers may develop thin crusts or verrucous changes or may continuously drain serous fluid.
The histological subtypes verrucous, papillary, and verrucoid are low risk, and the usual SCC is intermediate risk and the sarcomatoid or basaloid variants are high risk.
Lactic acid, applied with one to ten or more parts of water is also of value in the sclerous and verrucous types.
