The acute attack of porphyria.
D000208:Acute Disease; D002318:Cardiovascular Diseases / Q000209:etiology; D005767:Gastrointestinal Diseases / Q000209:etiology; D006801:Humans; D009422:Nervous System Diseases / Q000209:etiology; D011164:Porphyrias / Q000150:complications / Q000378:metabolism / Q000628:therapy