<prompt> Following are acute porphyrias exceptACUTE INTERMITTENT PORPHYRIAVariegate porphyriaHeriditary corpoporphyriaPorphyria cutanea tarda  <response>: The acute porphyrias are acute intermittent porphyria AIP, variegate porphyria VP, aminolevulinic acid dehydratase deficiency porphyriaALAD and hereditary coproporphyria HCP. The non-acute porphyrias are X-linked dominant protoporphyria XLDPP, congenital erythropoietic porphyria CEP, porphyria cutanea tarda PCT, and erythropoietic protoporphyria EPP. The non-acute porphyrias along with two acute porphyrias, VP and HCP, that may also involve skin manifestations--are sometimes called cutaneous porphyrias. ref : Harrisons 20th ed pg 2523 