“…In contrast to true erythropoietic porphyria and porphyria cutanea tarda, milia formation, hypertrichosis, and waxy (sclerodermoid) skin changes do not occur and plasma porphyrin levels are not elevated. Pseudoporphyria has been linked to the use of certain drugs, for example, NSAIDs, (Table 1) and is a particular problem in patients receiving long‐term treatment for arthritis (1,2). It is also linked to ultraviolet A (UVA) exposure and tanning bed use (3), chronic renal failure, and hemodialysis (4), although in the latter there may be abnormalities of porphyrin metabolism, so strictly, the term pseudoporphyria is not applicable.…”