8350/3 Nonencapsulated sclerosing tumor



Definitions

Thyroid gland
ICD-O-3 topography code: C73
ICD10: C73
           

A morphologic variant of papillary carcinoma of the thyroid gland that more often affects young patients and commonly metastasizing to the lungs. It is characterized by a diffuse infiltration of the thyroid gland by malignant follicular cells, squamous metaplasia, stromal fibrosis, and lymphocytic infiltration.