单词	porphyria
释义	porphyria /pɔːˈfɪrɪə / noun [mass noun] Medicine A rare hereditary disease in which there is abnormal metabolism of the blood pigment haemoglobin. Porphyrins are excreted in the urine, which becomes dark; other symptoms include mental disturbances and extreme sensitivity of the skin to light.Other metabolic neuropathies include symptomatic thyroid disease, porphyria, and renal or hepatic failure.... Clinically identical acute attacks can occur in acute intermittent porphyria, variegate porphyria, hereditary coproporphyria, and plumboporphyria. The actual article, of course, has much more to it: the cause of his madness has been diagnosed as vitamin deficiency, anaemia, hyperthyroidism and a metabolic disease called porphyria. Origin 1920s: modern Latin, from porphyrin.
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