Received 2/6/2007; revised 4/25/2007; accepted 4/27/2007. For correspondence or reprints contact: Wan-Yu Lin, M.D., Department of Medical Imaging, Taichung Veterans General Hospital. 160 Section 3, Taichung Harbor Road, Taichung 407, Taiwan. Tel: (886)4-23741349, Fax: (886)4-23741348, E-mail: wylin@ vghtc.gov.tw Langerhans’ cell histiocytosis (LCH) is a proliferative histiocytosis disorder. The...