Cysts are found in and adjacent to thyroid neoplasms.
Observation is a life long responsibility.
The TSH and thyroid must be watched, thyroid medications adjusted, and the nodule monitored. Should it regrow a repeat FNA is indicated. The thyroid is not an easy organ to examine, but if a nodule is discovered, an evaluation is required. In all cases this begins with thyroid function tests. Both hyperthyroidism and hypothyroidism need to be diagnosed and both require treatment.