Contrast-enhanced MRI of intrasellar arachnoid cysts: relationship between the pituitary gland and cyst.
We recently encountered two large intrasellar arachnoid cysts extending to the suprasellar region. The intensity of the cyst contents was identical to that of the cerebrospinal fluid on both T1- and T2- weighted MRI. On contrast-enhanced MRI, the pituitary gland was compressed posteroinferiorly and flattened in the sella turcica. In this report of rare intrasellar arachnoid cysts the discussion is focused on dislocation of the pituitary gland.
Nomura
M
M
Department of Neurosurgery, National Cardiovascular Center, Osaka, Japan.
Tachibana
O
O
Hasegawa
M
M
Kohda
Y
Y
Nakada
M
M
Yamashima
T
T
Yamashita
J
J
Suzuki
M
M
D016080:Arachnoid Cysts / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D003287:Contrast Media; D019786:Gadolinium DTPA; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009942:Organometallic Compounds; D004369:Pentetic Acid / Q000031:analogs & derivatives; D010902:Pituitary Gland / Q000473:pathology*; D011183:Postoperative Complications / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D012008:Recurrence; D012086:Reoperation; D012658:Sella Turcica / Q000473:pathology*
D003287:Contrast Media; D009942:Organometallic Compounds; D004369:Pentetic Acid; D019786:Gadolinium DTPA