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Year : 2020  |  Volume : 26  |  Issue : 2  |  Page : 201-204

Proportion of malignancy in solitary thyroid nodule

Department of General Surgery, Calicut Medical College, Kozhikode, Kerala, India

Correspondence Address:
Dr. J Hitesh
Department of General Surgery, Calicut Medical College, Kozhikode, Kerala
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ksj.ksj_25_20

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Introduction: Solitary nodule of thyroid (SNT) is a common diagnostic challenge, as it may be malignancy. Investigations are essential to establish functional status and cytopathological nature. Fine-needle aspiration cytology (FNAC) is very important. The incidence of malignancy in SNT is approximately 40%. Hence, early diagnosis is necessary for adequate treatment. This study focuses on the incidence of malignancy in SNT and study of different histopathological types. Materials and Methods: An observational study was conducted on 200 patients with solitary thyroid nodule and followed up with imaging, FNAC, intraoperative findings and histopathological report. Results: There was a female preponderance (139; 69.5%), and majority were between 4th and 5th decades of life (55.2%). The Mean age of at presentation was 47 years. The proportion of malignancy in SNT revealed by histopathological examination in this study was 36%. Out of which females are having 46 out of 139 that is 33% were malignant. In males 25 out of 61, means 40% were malignant. In females, out of the 46 cases, 16 (34%) had follicular carcinoma and 30 (65%) papillary carcinoma. In males, out of 25 cases follicular carcinoma comprised 9 (36%) and papillary carcinoma comprised 46 (64%) cases. Conclusions: The risk of malignancy in SNT was significant. Malignancy was more predominant in males. Papillary carcinoma represented more number of cases than follicular carcinoma. Malignancy was mostly present as hard nodules. There was no significant association with size of nodule and pattern of malignancy. Lymph node involvement was more with papillary carcinoma. The solitary nodules involved the left side of the thyroid more commonly than the right.

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