title: Intraatrial extension of thyroid cancer: a case report.
abstract: A 61-year-old man, who was diagnosed with superior vena cava syndrome by papillary thyroid carcinoma, was referred to our hospital. A bulky thyroid tumor with tracheal invasion extended from the left neck to the right atrium without distant metastases. The risk of sudden death due to airway occlusion, tumor embolism or obstruction of the tricuspid valve led us to elect surgery. Extended resection of thyroid cancer was performed with cardiopulmonary bypass. Peritoneal dissemination was found via laparotomy. A histological diagnosis of anaplastic carcinoma arising from transformation of papillary carcinoma was made. After the operation, bilateral ureteral occlusion by peritoneal dissemination and multiple lung metastases were detected. The patient died with acute renal failure on postoperative day 12. Intraatrial extension of thyroid cancer is rare, and only 12 cases have been reported in the literature. We present a case of thyroid cancer with intraatrial extension.
authors: Department of Cancer and Thoracic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan. sei_nana33sugi@yahoo.co.jp
authors: Seiichiro
authors: S
authors: Sugimoto
authors: Hiroyoshi
authors: H
authors: Doihara
authors: Yutaka
authors: Y
authors: Ogasawara
authors: Motoi
authors: M
authors: Aoe
authors: Shunji
authors: S
authors: Sano
authors: Nobuyoshi
authors: N
authors: Shimizu