title: Primary systemic amyloidosis imitating porphyria cutanea tarda.
mesh_terms: D000368:Aged; D000686:Amyloidosis / Q000175:diagnosis* / Q000473:pathology; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D011164:Porphyrias / Q000175:diagnosis*; D012867:Skin / Q000473:pathology