FNAC can diagnose all of the following thyroid lesions except
Ans. (c) Follicular carcinomaRef: Bailey & Love 24th/ 785y Schwartz 8th /1420* FNA biopsy is unable to distinguish benign follicular lesions from follicular carcinoma. Therefore, preoperative diagnosis of cancer is difficult unless distant metastases are present. Large follicular tumors (>4cm) in older men are more likely to be malignant. --Schwartz Surgery* FNAC is the investigation of choice for solitary thyroid nodules.* It cannot distinguish between a follicular Adenoma and a Follicular Carcinoma as this distinction is dependent not on cytology but on histological criteria such as capsular and vascular invasion. It therefore cannot be used to diagnose follicular carcinomas.
Anaplastic carcinoma
Papillary carcinoma
Follicular carcinoma
Medullary carcinoma
Thyroid Malignancies