“…In the main, the pédi¬ atrie aspects have been well elaborated,3'4, 12,13,27,33,39 because it is in this age group that most clinical cases occur. The cutane-OUS7, 19,20,21,25,31,36,37^^1 0,14,10,18,22 an(J orificial8'34 aspects have been presented rather fully because of the fair frequency with which these systems are affected. The gynecologic,26 specific neural,28 and pulmo¬ nary 2'17'41 phase of histiocytosis X have been the subject of fewer communications, which indicates the rarity of organ damage in these areas in a disease uncommon in In Lichtenstein's integral concept22 of histiocytosis X, the allocation of different clinicopathologic variations or combinations, of which our case is one, becomes a reason¬ able procedure.…”