I need to convert a markdown document to HTML and then convert it back to markdown. When I do this, math like $\pi$ gets converted to <span class="math inline"><em>\u03c0</em></span> in the HTML and to *\u03c0* when I convert it back to markdown. 

Is there a way to disable this feature and get $\pi$ back in the final markdown? I have tried using html-tex_math_dollars, but that ended up escaping all the $ signs.

Thank you!