Stromal tissue as an adjunct tool in the diagnosis of follicular thyroid lesions by fine-needle aspiration biopsy

BACKGROUND The stroma in fine-needle aspiration biopsy (FNAB) of thyroid lesions has not been well investigated. DESIGN We studied 256 consecutive cases of thyroid FNAB prepared with traditional smear technique. The stroma was categorized: Type 1a consisted of long (more than 3 mm), broad bands composed of mesh containing collagen fibrils thickened by… CONTINUE READING