Intravascular gas within an ovarian tumor: a CT sign of ovarian torsion.
A case of twisted ovarian tumor with intravascular gas is presented, and the mechanism of the gas formation is discussed. On the basis of the probable mechanism of gas formation observed in dead fetuses, the gas seen in the present case is considered to have been oxygen released from trapped oxyhemoglobin within the tumor vessels. "Intravascular gas" within an ovarian tumor, although extremely rare, is diagnostic of ovarian torsion.
Kawahara
Y
Y
Department of Radiology, Isahaya Insurance General Hospital, Japan.
Fukuda
T
T
Futagawa
S
S
Sakamoto
I
I
Takao
M
M
Kinoshita
Y
Y
Hayashi
K
K
D000328:Adult; D004407:Dysgerminoma / Q000098:blood supply / Q000000981:diagnostic imaging*; D004646:Emphysema / Q000000981:diagnostic imaging*; D005260:Female; D005740:Gases; D006801:Humans; D010049:Ovarian Diseases / Q000000981:diagnostic imaging*; D010051:Ovarian Neoplasms / Q000098:blood supply / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed; D014102:Torsion Abnormality / Q000000981:diagnostic imaging
D005740:Gases