Introduction to Thyroid Teratoma

What is/are Thyroid Teratoma?

Thyroid Teratoma - The presence of adipocytes within thyroid glands is a rare finding seen in thyrolipoma, diffuse lipomatosis, or thyroid teratoma. ^[1] Malignant thyroid teratoma (MTT) is a very rare thyroid malignancy. ^[2] Primary thyroid teratomas represent <0. ^[3] Malignant thyroid teratoma in adults is a rare tumour with less than 40 cases reported worldwide. ^[4] The detection of the germline mutation in DICER1 provided the opportunity to identify and continue to recognize a number seemingly unrelated extrapulmonary neoplasms: Sertoli-Leydig cell tumor, gynandroblastoma, embryonal rhabdomyosarcomas of the cervix and other sites, multinodular goiter, differentiated and poorly differentiated thyroid carcinoma, cervical-thyroid teratoma, cystic nephroma-anaplastic sarcoma of kidney, nasal chondromesenchymal hamartoma, intestinal juvenile-like hamartomatous polyp, ciliary body medulloepithelioma, pituitary blastoma, pineoblastoma, primary central nervous system sarcoma, embryonal tumor with multilayered rosettes-like cerebellar tumor, PPB-like peritoneal sarcoma, DICER1-associated presacral malignant teratoid neoplasm and other non-neoplastic associations. ^[5] BACKGROUND Primary malignant thyroid teratomas are very rare tumors (fewer than 35 previously reported cases in the literature) typically affecting young adult women. ^[6] Primary thyroid teratomas are rare, usually benign, and typically occur in children. ^[7] Lessons: Thyroid teratoma is rare in infants and is usually benign; however, some thyroid teratomas are malignant and inclined to relapse. ^[8]

Malignant Thyroid Teratoma

Malignant thyroid teratoma (MTT) is a very rare thyroid malignancy. ^[1] Malignant thyroid teratoma in adults is a rare tumour with less than 40 cases reported worldwide. ^[2] BACKGROUND Primary malignant thyroid teratomas are very rare tumors (fewer than 35 previously reported cases in the literature) typically affecting young adult women. ^[3]

Primary Thyroid Teratoma

Primary thyroid teratomas represent <0. ^[1] Primary thyroid teratomas are rare, usually benign, and typically occur in children. ^[2]