title: Champagne bottle neck sign in a patient with Moyamoya syndrome.
abstract: The champagne bottle neck (CBN) sign refers to a reduction in the diameter of the proximal portion of the internal carotid artery that resembles a CBN, and is a characteristic feature of Moyamoya disease. A 43-year-old woman with an infarction of the posterior limb of the left internal capsule was diagnosed with Moyamoya syndrome associated with Graves' disease. The CBN sign was observed bilaterally. Cerebral revascularization surgery was performed, including left-sided superficial temporal artery to middle cerebral artery anastomosis. During four years of follow-up, she maintained a euthyroid state and did not have any further cerebral ischemic events. The CBN signs remained unchanged on both sides during this time. This is the first report of the CBN sign in a patient with Moyamoya syndrome associated with Graves' disease.
authors.affiliation: Takafumi Shimogawa, Takato Morioka, Tetsuro Sayama, Takeshi Hamamura, Department of Neurosurgery, Kyushu Rosai Hospital, Fukuoka 800-0296, Japan.
authors.forename: Takafumi
authors.initials: T
authors.lastname: Shimogawa
authors.affiliation: Takafumi Shimogawa, Takato Morioka, Tetsuro Sayama, Takeshi Hamamura, Department of Neurosurgery, Kyushu Rosai Hospital, Fukuoka 800-0296, Japan.
authors.forename: Takato
authors.initials: T
authors.lastname: Morioka
authors.affiliation: Takafumi Shimogawa, Takato Morioka, Tetsuro Sayama, Takeshi Hamamura, Department of Neurosurgery, Kyushu Rosai Hospital, Fukuoka 800-0296, Japan.
authors.forename: Tetsuro
authors.initials: T
authors.lastname: Sayama
authors.affiliation: Takafumi Shimogawa, Takato Morioka, Tetsuro Sayama, Takeshi Hamamura, Department of Neurosurgery, Kyushu Rosai Hospital, Fukuoka 800-0296, Japan.
authors.forename: Takeshi
authors.initials: T
authors.lastname: Hamamura
authors.affiliation: Takafumi Shimogawa, Takato Morioka, Tetsuro Sayama, Takeshi Hamamura, Department of Neurosurgery, Kyushu Rosai Hospital, Fukuoka 800-0296, Japan.
authors.forename: Chiharu
authors.initials: C
authors.lastname: Yasuda
authors.affiliation: Takafumi Shimogawa, Takato Morioka, Tetsuro Sayama, Takeshi Hamamura, Department of Neurosurgery, Kyushu Rosai Hospital, Fukuoka 800-0296, Japan.
authors.forename: Shuji
authors.initials: S
authors.lastname: Arakawa
keywords: Champagne bottle neck sign; Graves’ disease; Moyamoya disease; Moyamoya syndrome; Revascularization