title: Monozygotic twins discordant for cutaneous mastocytosis.
mesh_terms: D002675:Child, Preschool; D004200:Diseases in Twins; D005260:Female; D006801:Humans; D008297:Male; D011247:Pregnancy; D014430:Twins, Monozygotic; D014582:Urticaria Pigmentosa / Q000235:genetics*