Acral, Pure Cutaneous, Self-Healing, Late-Onset, Cellulitis-Like Langerhans Cell Histiocytosis

Abstract

An unusual and not yet reported clinical presentation of pure cutaneous Langerhans cell histiocytosis (LCH) that was a diagnostic dilemma. To bring to light the newer presentation of this disease. The case was managed on clinical grounds initially as cellulitis. However, after the investigations and confirmation of the diagnosis, she was managed symptomatically. Pure cutaneous LCH may manifest in early adulthood with features of cellulitis, erythematous edematous vesicular plaques, and nodules distributed in the flexural acral areas. Pure cutaneous LCH may have an acute late onset with unusual morphology as cellulitis, inverse acral distribution, and self-healing.