<unk>  is a bullous photosensitivity that clinically and histologically mimics porphyria cutanea tarda. The difference is that no abnormalities in urine or serum porphyrin is noted on laboratories.<unk>  has been reported in patients with chronic kidney failure treated with hemodialysis and in those with excessive exposure to ultraviolet A (UV-A) by tanning beds.
Pseudoporphyria
Harderoporphyria
Erythropoietic protoporphyria
Porphyria
Scurvy
Megavitamin-B6 syndrome
Hemosiderinuria
Hepatic porphyria