Fig. 1From: Familial chilblain lupus due to a novel mutation in TREX1 associated with Aicardi–Goutie’res syndromePedigree of the family with dominant Familial chilblain lupus erythematosus. The arrow shows the index patient (IV-1). Black squares and circles indicate affected males and females; open squares and circles indicate unaffected males and femalesBack to article page