Inclusion Criteria:  Patients who are able and agree to sign the informed consent document.  Aged 18 years or older.  In the FNA clinic arm:  Patients evaluated for thyroid nodule/s suspected or known as DTC, accompanied by cervical LN/s suspected as DTC metastasis.  Patients following treatment for DTC (partial or total thyroidectomy, with or without compartmental neck dissection), with cervical LN/s suspected as DTC recurrency.  In the OR arm:  Patients operated for known DTC (partial or total thyroidectomy, with or without compartmental neck dissection).  Patients operated for DTC recurrency ('completion' and/or compartmental neck dissection).  -  Exclusion Criteria:  Pregnant women  -