Phytophotodermatitis from Heracleum mantegazzianum.
Five individuals developed striate bullous dermatitis two days after exposure on a clear day to Heracleum mantegazzianum, Umbelliferae (Parsnip) family. Photopatch testing confirmed phototoxicity from the plant. This and 28 other Heracleum species yield linear furanocoumarins.
D000328:Adult; D002648:Child; D003877:Dermatitis, Contact / Q000175:diagnosis / Q000209:etiology*; D006801:Humans; D008297:Male; D010328:Patch Tests; D010787:Photosensitivity Disorders / Q000175:diagnosis / Q000209:etiology*; D010944:Plants