In this patient as per the information supplied here: http://care.udhc.co.in/INPUT/displayIssueGraphically.jsp?topic_id=231

there were no factors suggesting increased risk of malignant potential such as:

History of head and neck irradiation
Family history of medullary thyroid carcinoma, multiple endocrine neoplasia type 2, or papillary thyroid
carcinoma
Age <14 or >70 years
Male sex
Growing nodule
Firm or hard consistency
Cervical adenopathy
Fixed nodule
Persistent dysphonia, dysphagia, or dyspnea (Box2:AACE/AME/ETA Thyroid Nodule Guidelines, Endocr Pract. 2010;16(Suppl 1) 5 last downloaded on May 12 from https://www.aace.com/files/thyroid-guidelines.pdf) also the FNAC and thyroid function TFT were normal.

Again as per guidelines linked above an annual review of USG, FNAC and TFT was advised from center of choice.