title: Concurrent papillary and medullary thyroid carcinomas with mixed metastases to lymph nodes.
abstract: We report here a rare concurrence of medullary and papillary carcinomas of the thyroid in a 39-year-old Saudi male. He presented with a solitary nodule of the right thyroid lobe and underwent total thyroidectomy based on the cytological diagnosis of papillary carcinoma. Subsequent detailed histopathologic examination of the thyroid revealed 2 different types of malignancies in the 2 lobes papillary cancer in the right and medullary cancer in the left lobe. A single small lymph node showed metastatic replacement by both cancers. The extreme rarity and the interesting pathological features of such combinations are discussed.
authors.affiliation: Department of Surgery, Dammam Central Hospital, Dammam, Kingdom of Saudi Arabia. meshikhes@doctor.com
authors.forename: Abdul-Wahed N
authors.initials: AW
authors.lastname: Meshikhes
authors.forename: Mukund
authors.initials: M
authors.lastname: Tingura
authors.forename: Jamal Y
authors.initials: JY
authors.lastname: Al-Saeed
mesh_terms: D000328:Adult; D018276:Carcinoma, Medullary / Q000473:pathology*; D002291:Carcinoma, Papillary / Q000473:pathology*; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology*; D008207:Lymphatic Metastasis; D008297:Male; D013964:Thyroid Neoplasms / Q000473:pathology*; D016606:Thyroid Nodule / Q000473:pathology* / Q000601:surgery; D013965:Thyroidectomy