RT Journal Article SR Electronic T1 Langerhans cell histiocytosis involving the sphenoid sinus and superior orbital fissure. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 964 OP 967 VO 16 IS 4 A1 Stromberg, J S A1 Wang, A M A1 Huang, T E A1 Vicini, F A A1 Nowak, P A YR 1995 UL http://www.ajnr.org/content/16/4/964.abstract AB We report Langerhans cell histiocytosis involving the sphenoid sinus and extending to the orbital apex. MR and CT imaging, particularly with contrast, both were helpful in defining the extent of the lesion before treatment. MR was a useful examination for follow-up after treatment. Langerhans cell histiocytosis should be considered in the differential diagnosis of lesions of this region in the pediatric age group.