title: Spontaneous rupture with pseudoaneurysm formation in a nodular goiter presenting as a large neck mass.
abstract: Acute airway obstruction caused by goiter hemorrhage is a rare but potentially life-threatening condition. We report a case of nodular goiter in which spontaneous rupture with active bleeding developed suddenly, presenting as a large neck mass with dyspnea. Sonographic examination revealed a large inhomogeneous soft tissue mass in the left thyroid lobe containing some hypoechoic areas. Color Doppler and spectral Doppler analysis were consistent with a large hematoma and pseudoaneurysm, which was subsequently confirmed at surgery.
authors.affiliation: Department of Emergency Medicine, Lotung Poh-Ai Hospital, Lotung, Ilan, Taiwan.
authors.forename: Chia-Che
authors.initials: CC
authors.lastname: Chang
authors.forename: Yi-Hong
authors.initials: YH
authors.lastname: Chou
authors.forename: Chui-Mei
authors.initials: CM
authors.lastname: Tiu
authors.forename: Hong-Jen
authors.initials: HJ
authors.lastname: Chiou
authors.forename: Hsin-Kai
authors.initials: HK
authors.lastname: Wang
authors.forename: See-Ying
authors.initials: SY
authors.lastname: Chiou
authors.forename: Siew-Peng
authors.initials: SP
authors.lastname: Chen
authors.forename: Ming-Wei
authors.initials: MW
authors.lastname: Chang
authors.forename: Chi-Houng
authors.initials: CH
authors.lastname: Chang
authors.forename: Ting-Han
authors.initials: TH
authors.lastname: Hong
mesh_terms: D000368:Aged; D000402:Airway Obstruction / Q000209:etiology; D017541:Aneurysm, False / Q000000981:diagnostic imaging / Q000209:etiology*; D003937:Diagnosis, Differential; D005260:Female; D006044:Goiter, Nodular / Q000150:complications* / Q000000981:diagnostic imaging; D006406:Hematoma / Q000209:etiology; D006470:Hemorrhage / Q000209:etiology; D006801:Humans; D012422:Rupture, Spontaneous; D013961:Thyroid Gland / Q000098:blood supply* / Q000000981:diagnostic imaging; D018608:Ultrasonography, Doppler; D018615:Ultrasonography, Doppler, Color