Acute abdominal pain and neurologic features of variegate porphyria and acute intermittent porphyria are similar - but urine becomes brown on standing in AIP and faecal protoporphyria is raised in VP.
Cutaneous lesions of VP, porphyria cutanea tarda, bullous and other photosensitivity disorders are similar. VP is distinguished by elevated faecal protoporphyrin and coproporphyrin.
Plasma fluorescence scanning helps differentiate variegate porphyria from acute intermittent porphyria, erythropoietic protoporphyria, congenital erythropoietic porphyria, porphyria cutanea tarda, and hereditary coproporphyria (1).
Reference:
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.