Out of these, 27 cases were reported as nodular goiter, 7 cases as papillary carcinoma, 6 cases as Hashimoto's thyroiditis, 2 cases as lymphocytic thyroiditis, 7 cases as follicular neoplasm, one case as Granulomatous thyroiditis
and another case as Anaplastic carcinoma.
Other common types include postpartum thyroiditis (subacute lymphocytic thyroiditis), silent sporadic thyroiditis, subacute granulomatous thyroiditis
(De Quervain's thyroiditis), suppurative thyroiditis, and fibrous thyroiditis (Riedel's thyroiditis) .
Seventy-eight nodules were benign, including 42 nodular goiters, 25 adenomas, 10 Hashimoto thyroiditis, and one granulomatous thyroiditis
. Forty-two nodules were malignant, including 40 papillary thyroid carcinomas and two medullary carcinomas.
Hashimoto's thyroiditis, Reidel's thyroiditis and granulomatous thyroiditis
were each 0.90%, which is almost same to the other studies.
Thyroid antibody tests may help in equivocal situations, such as a normal radioiodine study in hyperthyroidism or evaluating the cause of hypothyroidism when infiltrative disorders, Reidel's thyroiditis, or subacute granulomatous thyroiditis
In the present study among non-neoplastic lesions, simple colloid goitre 39 cases (69.64%) was found to be the most common followed by multinodular goitre 9 cases (16.07%), Hashimoto's thyroiditis 7 cases (12.5%) and granulomatous thyroiditis
1 case (1.78%).
Subacute granulomatous thyroiditis
(de Quervain's thyroiditis) is an uncommon disease that represents 0.16%-3.6% of all thyroid disorders.
Inflammatory lesions were the indication for thyroidectomy in 81 cases which include 1 case of granulomatous thyroiditis
(1.2%), 17 cases of lymphocytic thyroiditis (21%) and 63 cases of Hashimoto thyroiditis (77.8%).
of cases Percentage (%) Colloid cyst/cystic colloid nodule 20 13.60 Colloid goiter 86 58.5 Hyperplastic nodule/adenomatoid goiter 3 2.04 Thyroglossal cyst 5 3.40 Infected cystic lesion 1 0.68 Granulomatous thyroiditis
2 1.36 Lymphocytic thyroiditis 4 2.72 Intra-thyroid reactive lymph node 1 0.68 Follicular neoplasm 3 2.04 Papillary carcinoma 4 2.72 Anaplastic carcinoma 2 1.36 Medullary carcinoma 2 1.36 Insular carcinoma 1 0.68 Table 3: Diagnostic categorization of thyroid FNACs Categories Total no.
Hashimoto's thyroiditis is the predominant inflammatory lesion while subacute lymphocytic thyroiditis, subacute granulomatous thyroiditis
, post-partum thyroiditis comprise a minor proportion.
Out of 100 granulomatous lesions 89 were of tubercular origin, 4 cases of granulomatous thyroiditis
, 2 cases were of sporotrichosis, 2 cases of leprosy and 1 case each of cat scratch disease, sarcoidosis and granulomatous mastitis.
In benign category, the subcategories Benign Follicular Nodule (BFN) constitute 73%, Lymphocytic Thyroiditis (LT) constitute 23%, granulomatous thyroiditis
constitute 2% and in 'Others' include a case of abscess constitutes 2%.