Synonyms

Nonencapsulated sclerosing adenocarcinoma
Nonencapsulated sclerosing tumor

Related terms

Papillary carcinoma, diffuse sclerosing

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.