RADIOLOGY: NECK: Case# 33048: REIDELS THYROIDITIS. Seventy year old white female with progressive tracheal stenosis and enlarging neck mass for one year. 1) Large neck soft tissue mass involving the left greater than the right with encasement of local structures. Findings suggest a large goiter or Reidels struma. However, cannot exclude lymphoma or primary tumor of the thyroid. 2) Tracheal stenosis measuring 6 mm diameter. 3) Left internal jugular compression without complete occlusion.