Petrous and sphenoid arachnoid cysts: Diagnosis and management

Adrien, Judith; Vérillaud, Benjamin; Bresson, D.; Tran, H.; Kania, Romain; Sauvaget, E.; Guichard, Jean‐Pierre; Herman, Philippe

doi:10.1002/hed.23677

Cited by 5 publications

(7 citation statements)

References 17 publications

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“…ACs are most commonly discovered incidentally while running diagnostics of pathologies unrelated with location and development of the arachnoid cyst and post-traumatic events. [2,12].…”

Section: Discussionmentioning

confidence: 99%

“…Key factor for such an entity to arise is discontinuity of the inner cortical bone of the skull. It may involve any bone of the calvaria or the base of the skull [2]. Other essential feature is a rupture of the dura -it facilitates breaching out the arachnoid membrane and expanding into the diploe [19].…”

Section: Discussionmentioning

confidence: 99%

“…It seems obligatory since we did not nd any description in literature of the intradiploic and simultaneously intradural cyst. Primary intraosseous expansion of the arachnoid matter is probably an effect of CSF entering the diploe through the preexisting dehiscences or natural foramina with the force of intracranial pressure [2]. However, the non-traumatic variety of intradiploic cyst is very rare -usually seen in the occipital region, the temporal and frontal skull base [1,7].…”

Section: Discussionmentioning

confidence: 99%

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Large intradiploic arachnoid cyst of the skull in child – a case report and new terminology proposition

Drożdż,

Wojciechowski,

Ciszek

et al. 2023

Preprint

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We present a rare finding of the arachnoid matter invaginating into the base of middle cranial fossa and creating an abnormal space. Presented entity was incidentally found in head CT scan of 12-year-old male. Based on the radiological characteristics in CT scans and MR image the diagnosis of intradiploic arachnoid cyst (AC) was suggested. After surgical intervention and histopathological analysis of the specimen the diagnosis was confirmed. We assume this is the first description of large intrasphenoid AC without any traumatic or iatrogenic cause. The literature provides many different terms for the phenomenon. We are proposing term intradiploic arachnoid diverticulum as the more accurate for capture the essence of the phenomenon. It provides clear differentiation of the entities from classical arachnoid cysts since they are of different anatomical localization (intradural vs. extradural) and etiopathogenesis. Management with arachnoid diverticulum is not yet established. Surgical intervention may be required because of the risk of bone destruction and cerebro-spinal fluid leakage.

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“…ACs are most commonly discovered incidentally while running diagnostics of pathologies unrelated with location and development of the arachnoid cyst and post-traumatic events. [2,12].…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Large intradiploic arachnoid cyst of the skull in child – a case report and new terminology proposition

Drożdż,

Wojciechowski,

Ciszek

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Well-developed prenatal diagnostics and increased availability of CT/MR imaging are the cause of early detection of arachnoid cysts—most of them are recognized before an individual reaches 30 years of age [ 5 ]. ACs are most commonly discovered incidentally while running diagnostics of pathologies unrelated to the location and development of the arachnoid cyst and post-traumatic events [ 6 , 7 ].…”

Section: Discussionmentioning

confidence: 99%

“…The key factor for such an entity to arise is the discontinuity of the inner cortical bone of the skull. It may involve any bone of the calvaria or the base of the skull [ 6 ]. Another essential feature is a rupture of the dura—it facilitates breaching out of the arachnoid membrane and expanding into the diploe [ 4 ].…”

Section: Discussionmentioning

confidence: 99%

Large intradiploic arachnoid cyst of the skull in child—a case report and new terminology proposition

Drożdż,

Wojciechowski,

Ciszek

et al. 2023

Childs Nerv Syst

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We present a rare finding of the arachnoid matter invaginating into the base of middle cranial fossa and creating an abnormal space. Presented entity was incidentally found in head CT scan of 12-year-old male. Based on the radiological characteristics in CT scans and MR images, the diagnosis of intradiploic arachnoid cyst (AC) was suggested. After surgical intervention and histopathological analysis of the specimen, the diagnosis was confirmed. We assume this is the first description of large intrasphenoid AC without any traumatic or iatrogenic cause. The literature provides many different terms for the phenomenon. We are proposing the term intradiploic arachnoid diverticulum as the more accurate for capturing the essence of the phenomenon. It provides clear differentiation of the entities from classical arachnoid cysts since they are of different anatomical localization (intradural vs. extradural) and etiopathogenesis. Management with arachnoid diverticulum is not yet established, but observation with serial imaging studies should be recommended as primary management in case of asymptomatic cyst. When cyst is symptomatic, surgical treatment may be required.

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Purely Endoscopic Treatment for Arachnoid Cysts

Oertel,

Radtke

2024

Advances and Technical Standards in Neurosurgery

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Petrous and sphenoid arachnoid cysts: Diagnosis and management

Abstract: MRI FLAIR and diffusion-weighted sequences, together with osseous CT scans, help to distinguish arachnoid cysts from meningoceles and avoid unnecessary surgeries with potential complications.

Cited by 5 publications

References 17 publications

Large intradiploic arachnoid cyst of the skull in child – a case report and new terminology proposition

Large intradiploic arachnoid cyst of the skull in child – a case report and new terminology proposition

Large intradiploic arachnoid cyst of the skull in child—a case report and new terminology proposition

Purely Endoscopic Treatment for Arachnoid Cysts

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