Primary mucoepidermoid carcinoma of the thyroid gland - misdiagnosed as metastatic adenocarcinoma to the thyroid

Thyroid primary mucoepidermoid carcinoma is a malignant tumor classified as a salivary gland-type carcinoma of the thyroid. This type of tumor is extremely rare, with only a dozen cases reported to date, and has a high incidence in females. Due to its rarity, misdiagnosis can occur in clinical practice.