Pseudotumour cerebri due to a torcular epidermoid cyst

Lee, Gabriel Yin Foo; Seex, Kevin; Scott, Grace

doi:10.1046/j.1440-1622.2001.02135.x

Cited by 7 publications

(5 citation statements)

References 29 publications

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“…Post-operative follow-up showed disappearance of symptoms and papilledema after 1 month. Our finding resembles other case reports by Djindjian et al, [9] Lam et al, [10] Gabriel Yin Foo Lee et al, [11] and Davis et al [12] Our case is probably the fourth case of occipital intradiploic epidermoid over torcula presenting purely as BIH.…”

Section: Occipital Intradiploic Epidermoid Presenting As Benign Intrasupporting

confidence: 91%

Occipital intradiploic epidermoid presenting as benign intracranial hypertension: A rare manifestation

Sahoo¹,

Tripathy

Mohapatra³

et al. 2017

IJNS

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Section: Occipital Intradiploic Epidermoid Presenting As Benign Intrasupporting

confidence: 91%

Occipital intradiploic epidermoid presenting as benign intracranial hypertension: A rare manifestation

Sahoo¹,

Tripathy

Mohapatra³

et al. 2017

IJNS

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“…While I commend Lee et al 1 . for highlighting the issue of extracranial ‘lumps’ with intracranial extensions, I must disagree with their diagnosis of an epidermoid cyst causing pseudotumour cerebri.…”

mentioning

confidence: 97%

Pseudotumour cerebri due to a Torcular epidermoid cyst

Davis

2002

ANZ Journal of Surgery

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“…[ 4 , 16 , 19 , 30 ] Intradiploic epidermoid cysts may grow intracranially producing brain compression with consequent neurological deficit and/or intracranial hypertension. [ 11 , 13 , 16 , 18 , 24 , 33 ] Intradiploic epidermoids may rarely occlude major venous cranial sinuses, causing secondary intracranial hypertension;[ 22 , 23 , 28 , 29 , 32 , 36 ] in effect, according to the Monro– Kellie doctrine, disturbances in cerebral venous outflow, may result in venous congestion and consequent development of signs and symptoms of increased intracranial pressure. [ 34 ]…”

Section: Discussionmentioning

confidence: 99%

“…[ 2 , 25 , 26 , 35 ] Magnetic resonance venography is the gold standard examination to evaluate flow in cases of epidermoid cysts overlying the torcular or other major sinuses. [ 22 , 23 , 36 ]…”

Section: Discussionmentioning

confidence: 99%

“…[ 3 - 5 , 9 , 20 ] Intradiploic epidermoid cysts may remain asymptomatic for many years and are often occasionally discovered on plain skull X-rays, computed tomography (CT) scan, or magnetic resonance imaging (MRI) performed for trauma or other reasons, but they may erode both the inner and the outer bony tables and grow intracranially producing brain compression with consequent neurological deficit and/or intracranial hypertension;[ 11 , 13 , 16 , 18 , 24 , 33 ] intradiploic epidermoid cysts may rarely occlude major venous cranial sinuses, causing secondary intracranial hypertension. [ 22 , 23 , 28 , 29 , 32 , 36 ]…”

Section: Introductionmentioning

confidence: 99%

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Acute-onset diplopia from intracranial hypertension due to torcular herophili obstruction by an hemorrhagic intradiploic epidermoid cyst

Pagkou¹,

Maestro

Luzzi

et al. 2021

Surgical Neurology International

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Background: Epidermoid cysts are benign slow-growing congenital lesions, constituting approximately 1% of all cranial tumors. Most of these lesions are located intradurally, while about 10–25% of them are located within the diploic spaces. Intradiploic epidermoid cysts are usually discovered incidentally and may remain asymptomatic for many years, but in rare instances, they may grow intracranially and produce brain compression. Sometimes, intradiploic epidermoid cysts may occlude the main cranial venous sinuses causing intracranial hypertension. Case Description: We present the case of a 24-year-old male harboring a paramedian right occipital intradiploic cyst with erosion of both outer and inner bony tables, which occluded the torcular herophili producing a worsening symptomatology with acute-onset diplopia from right sixth cranial nerve palsy; the patient also presented bilateral papilledema, but only reported mild headache and dizziness. Neuroradiological studies evidentiated a lesion compatible with intradiploic epidermoid cyst with intralesional hemorrhagic component, overlying and almost completely occluding the torcular herophili. Considering the fast worsening of symptomatology and the evidence of intracranial hypertension, the patient was operated on immediately after completion of clinical and radiological assessment. The lesion was radically removed with almost immediate reversal of signs and symptoms. Histopathology confirmed the diagnosis of epidermoid cyst with intralesional hemorrhagic components. Conclusion: Intradiploic epidermoid cysts may cause intracranial hypertension by occlusion of main cranial venous sinuses; intralesional hemorrhage may act as precipitating factor in occlusion of the torcular herophili, producing rapidly worsening intracranial hypertension, which requires prompt surgical treatment to reverse symptomatology. Radical surgical resection is necessary to avoid recurrence.

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Pseudotumour cerebri due to a torcular epidermoid cyst

Cited by 7 publications

References 29 publications

Occipital intradiploic epidermoid presenting as benign intracranial hypertension: A rare manifestation

Occipital intradiploic epidermoid presenting as benign intracranial hypertension: A rare manifestation

Pseudotumour cerebri due to a Torcular epidermoid cyst

Acute-onset diplopia from intracranial hypertension due to torcular herophili obstruction by an hemorrhagic intradiploic epidermoid cyst

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