Postnatal development and enlargement of primary middle cranial fossa arachnoid cyst recognized on repeat CT scans

Kumagai, Morio; Sakai, Noboru; Yamada, Hideaki; Shinoda, Jun; Nakashima, Toshihiko; Iwama, Tohru; Ando, Takashi

doi:10.1007/bf00706815

Cited by 57 publications

(28 citation statements)

References 10 publications

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“…Similar findings were separately reported by Schachenmayer and Friede in 1979 [18]. Kumagai et al [14] studied an excised temporal AC wall which revealed a common arachnoid membrane with neither ependymal nor inflammatory cells. …”

Section: Discussionsupporting

confidence: 72%

“…Al-Holou et al [2] noted that no patient older than 4 years at the time of initial diagnosis had cyst enlargement, new symptoms or underwent surgical treatment and that younger age at presentation was associated with cyst enlargement and need for eventual surgery. However, there are a few case reports of cyst expansion of middle cranial fossa ACs [14,28]. The cyst expansion might have occurred through a ball-valve mechanism [14].…”

Section: Discussionmentioning

confidence: 99%

“…In this article, we describe the spontaneous development of a suprasellar AC (SAC) in a 4-year-old child. This is 1 of 6 documented cases in the English literature (table 1) of an AC the origin of which was not clearly congenital or traumatic [1,9,13,14,15]. …”

Section: Introductionmentioning

confidence: 99%

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De Novo Suprasellar Arachnoid Cyst: Case Report and Review of the Literature

Invergo

Tomita

2012

Pediatr Neurosurg

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Purpose: We present a case of a 4-year-old child who was incidentally found to have a suprasellar arachnoid cyst (SAC) after initial CT imaging at 6 weeks of age but who demonstrated no anomalies. This is only the sixth case of intracranial de novo ACs documented in the English literature and only the second case of SAC to arise de novo. Methods: Case review after an SAC was found on an MRI scan at 4 years of age which had not been present on a previous CT of the head. Results: Apparent de novo SAC formation in a healthy 4-year-old female without a history of intracranial infection, surgery or trauma. Conclusion: The pathophysiology leading to the formation of the cyst might well be congenital, although there is some question as to how early in development the cysts are formed as our child was a 32-week GA preemie with an initial scan at 38 weeks GA. With the use of fast MRI scans instead of CT scans and the continued neuroimaging of premature infants, we can take a better look at the anatomy and better determine the timing of development of the SAC.

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Section: Discussionsupporting

confidence: 72%

Section: Discussionmentioning

confidence: 99%

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De Novo Suprasellar Arachnoid Cyst: Case Report and Review of the Literature

Invergo

Tomita

2012

Pediatr Neurosurg

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“…The relevance of these observations is whether one would expect the temporal lobe to expand after successful treatment or not. Regardless of origin, several studies have shown that a large proportion of middle fossa arachnoid cysts enlarge with time [5, 6, 7, 8]. …”

Section: Discussionmentioning

confidence: 99%

Congenital Middle Fossa Arachnoid Cysts May Cause Global Brain Ischaemia: A Study with <sup>99</sup>Tc-Hexamethylpropyleneamineoxime Single Photon Emission Computerised Tomography Scans

Sgouros

Chapman

2001

Pediatr Neurosurg

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Three children with middle fossa arachnoid cysts, presenting with non-specific symptoms and otherwise well, were investigated before and after surgery with magnetic resonance and ⁹⁹Tc-hexamethylpropyleneamineoxime single photon emission computerised tomography scans, to assess the effect of the cysts on cerebral blood flow. All patients had evidence of a reduction in cerebral blood flow at presentation, even in the hemisphere contralateral to the middle fossa cyst, implied by perfusion defects seen centrally in the deep white matter of both cerebral hemispheres. After successful surgical excision of the cyst, the perfusion defects disappeared. This was associated with general improvement of pre-existing non-specific symptoms. These findings indicate that middle fossa arachnoid cysts may cause global impairment of brain function by interfering with its blood supply. This does not support the generally held view that such cysts are benign in nature when ‘asymptomatic’.

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“…Only 5 cases of expanding arachnoid cysts documented by serial imaging studies have been reported [4,5,6,7]. On the other hand, supratentorial arachnoid cysts that disappeared spontaneously without a history of head injury were reported in the literature on rare occasions [8,9,10,11,12,13,14,15,16,17,18,19].…”

Section: Discussionmentioning

confidence: 99%

Surgical Decompression of Supratentorial Arachnoid Cysts in Pediatric Patients Younger than One Year

et al. 2008

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Background: There has been much debate about the optimal surgical management of arachnoid cysts in infants younger than 1 year of age. The authors present the clinical and neuroimaging findings in pediatric patients with supratentorial arachnoid cysts treated by surgical decompression. Methods: A retrospective chart review was conducted to identify all pediatric patients who had been diagnosed with arachnoid cysts since 2003. Five infants with symptomatic supratentorial arachnoid cysts underwent surgery at Kangnam St. Mary’s Hospital. Results: The initial surgery in 4 patients involved a craniotomy with the excision of the cyst wall and fenestration into the basal cisterns. Three of the four patients needed additional procedures, such as cyst-peritoneal or subdural-peritoneal shunting due to failure of cyst resolution. A shunting procedure was performed as initial therapy in 1 patient who presented with increased intracranial pressure. Conclusion: Our strategy for approaching arachnoid cysts in pediatric patients has been to diagnose and treat the cysts as early as possible and to avoid the complications of shunts whenever possible. However, open craniotomy with excision and fenestration of the cyst is associated with a relatively high failure rate in pediatric patients younger than 1 year of age with supratentorial arachnoid cysts.

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Postnatal development and enlargement of primary middle cranial fossa arachnoid cyst recognized on repeat CT scans

Cited by 57 publications

References 10 publications

De Novo Suprasellar Arachnoid Cyst: Case Report and Review of the Literature

De Novo Suprasellar Arachnoid Cyst: Case Report and Review of the Literature

Congenital Middle Fossa Arachnoid Cysts May Cause Global Brain Ischaemia: A Study with <sup>99</sup>Tc-Hexamethylpropyleneamineoxime Single Photon Emission Computerised Tomography Scans

Surgical Decompression of Supratentorial Arachnoid Cysts in Pediatric Patients Younger than One Year

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