title: Gross hematuria and bladder tumor in a patient with advanced thyroid papillary carcinoma.
abstract: We present a 73-year-old female with advanced thyroid papillary carcinoma who complained of gross hematuria. We found a bladder tumor and considered it the cause of her symptom. Cystoscopic findings of the tumor were unusual, with peri-tumor vessel formation. Pathological examination of the bladder tumor was consistent with metastasis of thyroid papillary carcinoma. Therefore, we identified thyroid carcinoma metastasis to the urinary bladder as the cause of hematuria in our patient. Thyroid carcinoma metastasis to the bladder is extremely rare, but it should be included among differential diagnoses for gross hematuria in patients with a clinical history of thyroid carcinoma.
authors.affiliation: Department of Endocrinology and Metabolism, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan.
authors.forename: Takao
authors.initials: T
authors.lastname: Ando
authors.forename: Yuki
authors.initials: Y
authors.lastname: Matsuo
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Ikeoka
authors.forename: Kojiro
authors.initials: K
authors.lastname: Oba
authors.forename: Yasuyoshi
authors.initials: Y
authors.lastname: Miyata
authors.forename: Hideki
authors.initials: H
authors.lastname: Sakai
authors.forename: Kuniko
authors.initials: K
authors.lastname: Abe
authors.forename: Atsushi
authors.initials: A
authors.lastname: Kawakami