Silver-stained organizer regions and immunoglobulins in cutaneous keratoacanthomas and squamous cell carcinomas

There is a significant difference in the number of AgNORs and the proportion of Ig subclasses in contrast to the cellular infiltrate among the three stages of KA. In SCCs, the number of AgNORs and the percentage of Igs and ICI increased gradually in proportion to the degree of malignancy.