Fig. 4From: Pediatric Langerhans cell histiocytosis of the temporal bone: clinical and imaging studies of 27 casesAxial CT shows focal bony erosion of the left greater wing of sphenoid bone with well-defined margin (a), which was pathologically confirmed LCH. Focal well-defined lytic lesion with punched-out appearance of squamous part of the temporal bone is clearly demonstrated on CT (b)Back to article page