urine - colour and porphyrin level are diagnostic. The patient may have burgundy red urine if uroporphyrin is present and this is a constant finding in congenital erythropoietic porphyria. Urine in acute intermittent porphyria becomes brown, red or black on standing whilst that of porphyria cutanea tarda shows a pink fluorescence when illuminated. Particular porphyrins raised except in erythropoietic protoporphyria.
serum - specific porphyrins raised except in variegate porphyria. Increase is moderate in porphyria cutanea tarda.
stool - specific porphyrins raised except in acute intermittent porphyria.
Annotations allow you to add information to this page that would be handy to have on hand during a consultation. E.g. a website or number. This information will always show when you visit this page.