PCAT1 and multinodular goiter: Abbreviations: Long non-coding RNA (lncRNA); prostate cancer-associated transcript 1 (PCAT1); body mass index (BMI) red blood cells (RBCs); white blood cells (WBCs); TNM stands for tumor size; N for nodal metastasis; M for distant metastasis; Hg for hemoglobin; and MNG for multinodular goiter