| Clinical significance of mega cisterna magna. |
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Young Hyuk Lee1, Min Hee Kim1, Kyo Sun Kim1, Hae Jeong Jeon2, Jeong Hee Park2 |
1Department of Pediatrics, Konkuk University College of Medicine, Seoul, Korea
2Department of Radiology, Konkuk University College of Medicine, Seoul, Korea |
| 거대 소뇌수뇌수조 (Mega Cisterna Magna) 의 임상적 의의 |
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이영혁1, 김민희1, 김교순1, 전혜정2, 박정희2 |
1건국대학교 의과대학 소아과학교실
2건국대학교 의과대학 방사선과학교실 |
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Received: 7 March 1991 • Accepted: 31 May 1991 |
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| Abstract |
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The mega cistema magna is a congenital developmental malformation. The size of the cistema
magna and the criterion of the mega cistema is still debatable. A clinical study had been performed
on 12 children with mega cistema magna diagnosed by computed tomography scan from January 1980
to December 1990.
The results are summarized as follows:
1) Among 4900 consecutive unselected computed tomography scans, twelve cases with mega
cistema magna were detected. The incidence of mega cistema magna in our series was 0.24%. Eight
cases were male and four were female ratio was 2:1.
2) Delayed development, seizure, hyperactivity, headache, microcephaly in order of frequency were
the chief complaints on admission. Neurologic examination was abnormal in 2 children, but all of the
children did not related to the symptoms of mass effect in the posterior fossa.
3) The dimensions of the cisterns ranged as follows: Width between 15~80 mm, depth between 10
~40 mm, mean of width X depth was 43 X 21 mm.
4) Cerebellar atrophy was found in 1 child who presented with microcephaly and delayed develop-
ment, but cerebral atrophy was not detected in any child.
5) Conservative treatment was done according to the symptoms, but mega cistemamagna itself did
not require any form of treatment.
6) Among 12 cases, one male child was taken computed tomography scan due to head injury, but
he did not have any specific symptoms and signs. Mega cistema magna was found incidentally. So it
is necessary to collect more cases for better evaluation of relationship between clinial and
radiological findings. |
| Key Words:
Mega Cisterna Magna |
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