Inline graphics
Inline characters, symbols or images may appear within a text node. Use a graphic element containing an image of the character or other image and set the attribute role="inline".
//graphic[@role="inline"]
Before using an image for a character or symbol, check to see if there is a Unicode character available.
Printed book
XML
<p>Teichopsia and fortification spectra, eg a gradually enlarging C <graphic sysId="med-9780198530855-graphic-033.tif" id="med-9780198530855-chapter-12-graphic-34" role="inline"/> with scintillating edges.</p>