“…Occasionally (10% of cases), visceral or mucosal lesions are present (bone, spleen, lung, liver, testicle or eye with a risk of glaucoma). JXG regresses spontaneously during the first few years (3–6 years), sometimes leaving residual pigmentation and atrophy [3,4,5,6]. Histologic examination initially reveals histiocytic proliferation without xanthomatous cells, associated with a moderate infiltrate (lymphoid cells and eosinophils) [3].…”