trouble maker this trouble reliever
that hypo echoic lesion may be a simple adenomatous goiter. or a cystic lesion . thyroiditis is a condition which should be supported by thyroid function tests
, this radiating pain
may not be due to that. if its really radiation you have to rule out cervical spondylitis
. may a neuritic pain due to compression of nerve due to degenerative disorder of the cervical vertebra . so do a x ray cervical spine
and if possible MRI of cervical region .
good luck keep in touch