title: Fatal anaphylaxis in systemic mastocytosis.
abstract: A 42-year-old woman died after an episode of anaphylaxis associated with a raised serum histamine level. A diagnosis of systemic mastocytosis was established, with lymphadenopathy and hepatosplenomegaly, not associated with the usually pre-existing skin lesions of urticaria pigmentosa.
mesh_terms: D000328:Adult; D000707:Anaphylaxis / Q000150:complications*; D001853:Bone Marrow / Q000473:pathology; D005260:Female; D006632:Histamine / Q000097:blood; D006801:Humans; D008099:Liver / Q000473:pathology; D014582:Urticaria Pigmentosa / Q000150:complications* / Q000473:pathology
chemical_list: D006632:Histamine