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031 Journal of Nara Medical Association >
Vol.53 No.3 >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/10564/78
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| Title: | Hemorrhagic Arachnoid Cyst of the Posterior : A Case Report |
| Authors: | Motoyama, Yasushi
Satow, Takeshi
Higuchi, Kazushi
Isaka, Fumiaki
Yamazoe, Naohiro
Nabeshima, Sachio |
| Keywords: | arachnoid cyst
posterior fossa
hemorrhage
head injury |
| Issue Date: | 30-Jun-2002 |
| Publisher: | 奈良医学会 |
| Citation: | Journal of Nara Medical Association Vol.53 No.3 p.173-177 |
| Abstract: | Arachnoid cysts are reported to be occasionally associated with subdural
hematoma or hygroma. Spontaneous disappearances of arachnoid cysts have been
reported previously and in was emphasized that rupture of cyst membrane and subdural
hematoma or hygroma must be essential for them to disappear. We report herein a case
of hemorrhagic arachnoid cyst of the posterior fossa. The hemorrhagic cyst was not accompanied by subdural hematoma or hygroma and gradually reduced in size.
A 21-year-old man sustained a cerebral contusion and epidural hematoma of the
frontal reglon from a head injury. Computerized tomography scannlng obtained 12 hours after the inJury revealed a hemorrhagic retrocerebellar arachnoid cyst. Magnetic resonance imaging performed on day 21 revealed that the hemorrhagic arachnoid cyst had high intensity on a T1-weighted image and relatively low intensity on a T2-
weighted image without subdural hematoma or hygroma. Follow-up CT scans revealed
that the hemorrhagic arachnoid cyst had reduced in size. The patient made an almost
complete recovery and was discharged with no observable neurologlcal deficits three
months after admission.
Hemorrhage was not presentin the first few hours after head injury but developed
Subsequently, confined strictly to the cystic cavity. This case report provides evidence that disappearance or reduction of arachnoid cysts can occur without the need for subdural hematoma or effusion. |
| URI: | http://hdl.handle.net/10564/78 |
| ISSN: | 13450069 |
| Appears in Collections: | Vol.53 No.3
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| 173-177p.Hemorrhagic Arachnoid Cyst of the Posterior A Case Report(Yasushi MOTOYAMA ... et al.).pdf | | 1870Kb | Adobe PDF | View/Open |
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