Spindle epithelial tumor with thymus-like differentiation of thyroid gland: Report of two cases with follow-up
Spindle epithelial tumor with thymus-like differentiation (SETTLE) is a rare malignant thyroid tumor showing thymic or related branchial pouch differentiation.The here tumors are composed predominantly of spindle cells along with focal epithelial component and ductular formations.SETTLE occurs in young patients, with indolent growth and a tendency