Solar urticaria and porphyrias |
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Authors: | Palma-Carlos A G Palma-Carlos M L |
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Institution: | Immunoallergology Department, Santa Maria Hospital, Lisbon, Portugal. |
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Abstract: | The importance of disturbances of porphyrin metabolism in solar urticaria is discussed. 15 cases of porphyrias with sun sensitivity are presented comprising 5 cases of erythropoietic protoporhyria, 8 cases of coproporphyria hereditaria and 2 cases of porphyria variegata, 9 out of these 10 patients presented neuroabdominal symptoms and in 4 cases contraceptive pills have triggered the disease. Due to the risk of severe forms of disease sometimes drugs induced porphyrias must be considered in all cases of solar urticaria and a correct laboratory study done in the suspected cases. |
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