“…The customary classification of amyloido¬ sis is as follows: (1) primary systemic amyloidosis with no known precipitating causes; (2) secondary amyloidosis, follow¬ ing certain chronic diseases; (3) amyloidosis secondary to multiple myeloma; (4) local¬ ized cutaneous amyloidosis or lichen amyloi¬ dosis; (5) localized nodular form, involving one or several systems especially cornea, conjunctiva, lung, respiratory tract, larynx, stomach, urinary bladder and a few of the skin (proved later to be primary systemic amyloidosis); (6) deposits of amyloid in senile and pigmented verrucae, sebaceous nevi, epitheliomas.4…”