Granular Cell Tumor of the Thyroid Gland: A Case Report and Review of the Literature / 대한내분비외과학회지

ABSTRACT

Granular cell tumor (GCT) is a rare tumor of Schwann cell origin. While this tumor can occur anywhere in the body, GCT of the thyroid gland is very rare. This tumor is benign, despite showing grossly and histologically malignant features, and should be differentiated from oncocytic/Hurthle cell neoplasm and medullary carcinoma of thyroid. Immunohistochemistry can confirm the final diagnosis and differentiate from other tumors and cell types. We report on a GCT of thyroid in a 46-year-old woman with medical history of right breast cancer and review of literatures.