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			25 year old kickboxer with progressive proptosis  
			 
			 Digital Journal of Ophthalmology 1997 Volume 3, Number 26 September 24, 1997
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			Scott C. Brun, MD | Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA Peter A.D. Rubin, M.D. | Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA 
			  
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| Ancillary Testing |  Radiographic Studies 
  
 
Pathology 
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				Figure 2a 
				Orbital CT: Axial, showing an expansile soft tissue mass obliterating the greater wing of the sphenoid bone.			 
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				Figure 2b 
				Orbital CT: Coronal bone window, showing scalloping of the greater wing of the sphenoid bone indicating bony destruction. 			 
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				Figure 3 
				Histology revealed a number of large histiocytes with scattered eosinophills, lymphocytes and plasma cells. 			 
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				Figure 4 
				Electron microscopy demonstrated the presence of Birbeck granules (arrow) within a few of the histiocytes.			 
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