Canadian Medical Guide > Diseases > Digestive System Diseases > Liver Diseases > Porphyria, Hepatic > Porphyria Cutanea Tarda Terms and Definitions

Porphyria Cutanea Tarda

Medical Definition:	A form of hepatic porphyria (PORPHYRIA, HEPATIC) characterized by photosensitivity resulting in bullae that rupture easily to form shallow ulcers. This condition occurs in two forms: a sporadic, nonfamilial form that begins in middle age and has normal amounts of uroporphyrinogen decarboxylase with diminished activity in the liver; and a familial form in which there is an autosomal dominant inherited deficiency of uroporphyrinogen decarboxylase in the liver and red blood cells.
Guide Notes:	a form of hepatic porphyria
Previously Indexed:	Porphyria (1966-1992)

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