oa South African Medical Journal - Symptomatic porphyria II - localization of serum substances in the skin of patients with porphyria cutanea tarda (PCT)*



Improved immunofluorescence techniques, using epiilluminiation and blue narrow band excitation showed the presence of immunoglobulins, complement and fibrinogen in the thickened vessel walls of the upper dermis, which are probably caused by damage to the vessel walls by light.


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