Hi, i had the same as your husband 2 years ago. no radiation. It was decided.to keep that back just in case.

Scc in situ right side of tongue. Partial glossectomy Aug 2011, clear margins.
June 2013 white patch noticed on opposite side tongue.
July 2013 biopsy of white patch completed - mild to moderate dysplasia
September 2013 Laser excison of dysplsia. Mild dysplsia with clear margins