BACKGROUND Malignant follicular lesion is not differentiated from benign lesions cytologically. The objective of this study was to assess the rate and the risk of malignancy in thyroid nodules which were cytologically diagnosed as follicular neoplasm by fine-needle aspiration (FNA) cytology. METHODS All the patients who had undergone surgery with cytological diagnosis of follicular neoplasm f...

conclusions we described a rare case of a usually aggressive thyroid angiosarcoma in a patient living in a non-alpine region, with an unusual favorable outcome after the operation and radiotherapy. case presentation an asymptomatic 61-year-old woman presented with a right lobe thyroid nodule with fine needle aspiration cytology indicating “suspicious for malignancy” was reported in our study. h...

Background. Fine needle aspiration (FNA) remains the first-line diagnostic in management of thyroid nodules and reduces unnecessary surgeries. However, it is still challenging since cytological results are not always straightforward. This study aimed to examine the results of thyroid FNA using the Bethesda system for reporting thyroid cytopathology (TBSRTC) to establish the level of accuracy of...

Mature cystic teratoma (MCT) is a common ovarian neoplasm in young females. A secondary malignant transformation occurs rarely in cystic teratomas at an older age. These secondary malignant neoplasms most commonly are squamous cell carcinomas (SCCs). Various mechanisms are reported, but the exact aetiology is unknown. We report three cases of SCC arising in cystic teratoma and one case of papil...

Insular thyroid carcinoma (ITC) was first described as a distinct thyroid neoplasm by Carcangiu et al in 1984. This rare, tumour is aggressive and often lethal. ITC is classified morphologically and biologically as a tumour intermediate between well differentiated (papillary and follicular) and undifferentiated (anaplastic) thyroid carcinomas. There have been only a few publications on cytologi...

The aim of this study was to evaluate the usefulness of fine-needle aspiration cytology (FNAC) and (99m)Tc-pertechnetate scintigraphy (TS) together in patients with differentiated thyroid carcinoma. Data from a series of 357 patients (284 women and 73 men, median age 43 years, range 19-73) with solitary thyroid nodule and no signs of hyperfunction, who had undergone both FNAC and TS prior to su...

INTRODUCTION Metastatic neoplasms to the thyroid gland are rare in clinical practice. Clear cell renal carcinoma is the most frequent site of origin of thyroid metastases and represents 12 to 34% of all secondary thyroid tumors. Tumor-to-tumor metastases, in which a thyroid neoplasm is the recipient of a metastasis, are exceedingly rare. We report a case of clear cell renal carcinoma metastatic...

In the United Kingdom (UK), thyroid cytology reporting system is based on the British Thyroid Association (BTA)/Royal College of Pathologists (RCPath) Thy terminology. This classification includes Thy1 (non-diagnostic), Thy2 (benign), Thy3a (cytological/ architectural atypia), Thy3f (suggestive of a follicular neoplasm), Thy4 (suspicious of malignancy) and Thy5 (malignant). This system allows c...

BACKGROUND Thyroid follicular cells share similar cytomorphological features with parathyroid. Without a clinical suspicion, the distinction between a thyroid neoplasm and an intrathyroidal parathyroid can be challenging. The aim of this study was to assess the distinguishing cytomorphological features of parathyroid (including intrathyroidal) and Bethesda category IV (Beth-IV) thyroid follicul...