Epidermoid and Cholesterol Cysts in the Apex of the Petrous Bone

King, T. T.; Benjamin, Jennifer; Morrison, A. W.

doi:10.3109/02688698909002831

Cited by 23 publications

(12 citation statements)

References 20 publications

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“…Although it is recognised that intracranial epidermoid cysts are a rare cause of recurrent aseptic meningitis, we could find only two other cases in the literature reporting a congenital cholesteatoma of the petrous apex presenting in this way 8 9. Our case adds to this number, and, in addition, highlights some important learning points regarding developments in diagnostic imaging when investigating lesions of this type.…”

Section: Discussionmentioning

confidence: 61%

Recurrent aseptic meningitis as a rare but important presentation of congenital petrous apex cholesteatoma: the value of appropriate imaging

MacKeith

Soledad-Juarez²,

Tiberti³

et al. 2014

BMJ Case Reports

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We describe the presentation, investigation and challenging management of a young adult with recurrent aseptic meningitis. The presence of cholesterol and triglycerides in the cerebrospinal fluid sample was recognised as a potential sign of an underlying dermoid or epidermoid cyst. We demonstrate how appropriate imaging of the skull base with diffusion-weighted imaging (DWI) MRI can help differentiate between lesions of the petrous apex, facilitating the diagnosis of a petrous apex congenital cholesteatoma/epidermoid cyst. Awareness of this unusual mode of presentation of a rare disease, as well as knowledge of key diagnostic investigations, may allow for earlier identification, treatment and reduced morbidity/mortality.

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Section: Discussionmentioning

confidence: 61%

Recurrent aseptic meningitis as a rare but important presentation of congenital petrous apex cholesteatoma: the value of appropriate imaging

MacKeith

Soledad-Juarez²,

Tiberti³

et al. 2014

BMJ Case Reports

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“…PBC is a kind of slow-growing epidermoid lesion arising in the petrous portion of temporal bone, accounting for 4-9% of all petrous pyramid lesions [8]. PBC is locally aggressive and often invade the inner ear and facial nerve, resulting in hearing loss and facial paralysis.…”

Section: Discussionmentioning

confidence: 99%

Petrous bone cholesteatoma: our experience of 51 patients with emphasis on cochlea preservation and use of endoscope

Gao

Zhang

et al. 2019

Acta Oto-Laryngologica

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Background: Petrous bone cholesteatoma (PBC) is a rare but local aggressive lesion which can lead to severe complications. Surgery is the mainstay for its treatment. Objectives: To analyse the clinical characteristics and surgical outcomes in a series of patients with PBC, paying special attention to cochlea preservation and use of endoscope. Materials and methods: Retrospective study of 51 patients with PBC who underwent surgery at our centre. Results: Hearing loss (72.5%) and facial paralysis (58.8%) were the two most common symptoms. According to Sanna's classification, supralabyrinthine subtype (51.0%) was the most common subtype, followed by the massive subtype (33.3%). In most patients, PBC was radically removed using subtotal petrosectomy (80.4%). Endoscope was used for assistance in six cases. Various managements of facial nerve were used in different cases. Hearing rehabilitation was not emphasized (44 postoperative dead ear); however, cochlea was preserved as far as possible (45.3%). Recurrence was identified in five patients by MRI with diffusion weighted imaging (DWI) sequence. No recurrence was detected in patients underwent surgery with endoscope assistance. Conclusions and significance: radical excision and functional reconstruction constitute the framework of PBC surgery. Cochlea preservation is critical for possible cochlear implantation in the future. Use of endoscope has the potential to enhance surgical precision and reduce recurrence. ARTICLE HISTORY

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“…Neurological defi cits caused by removal of the petrous apex tumor add to the approach-related complications and occur in 30 to 71.4 % if a skull base approach is taken [7,8,18,20,22] . Most of these complications are new or worsened cranial nerve defi cits, whereas brain stem infarction due to perforator occlusion is a well recognized but fortunately rare complication.…”

Section: Complications Related To Tumor Removalmentioning

confidence: 99%

Neurosurgical Strategies and Operative Results in the Treatment of Tumors of or Extending to the Petrous Apex

Wachter

Behm²,

Gilsbach³

et al. 2011

Minim Invasive Neurosurg

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Epidermoid and Cholesterol Cysts in the Apex of the Petrous Bone

Cited by 23 publications

References 20 publications

Recurrent aseptic meningitis as a rare but important presentation of congenital petrous apex cholesteatoma: the value of appropriate imaging

Recurrent aseptic meningitis as a rare but important presentation of congenital petrous apex cholesteatoma: the value of appropriate imaging

Petrous bone cholesteatoma: our experience of 51 patients with emphasis on cochlea preservation and use of endoscope

Neurosurgical Strategies and Operative Results in the Treatment of Tumors of or Extending to the Petrous Apex

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