SECONDARY ERYTHERMALGIA ASSOCIATED WITH AN AUTOIMMUNE DISORDER OF UNDETERMINED SIGNIFICANCE

A 50-year-old female patient is described with an acquired, persisting and yet incurable erythermalgia featured by symmetric burning pain an d red congestion of the extremities secondary to cutaneous vasculitis. A weakly positive antinuclear antibody titer and high titers of antib odies against gastric parietal mucosa cells pointed to an underlying b ut unclassifiable autoimmune disorder. It is concluded that histopatho logy of lesional skin contributes to the differential diagnosis of pri mary and secondary erythermalgia.