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Jalessi M, Sharifi G, Ahmadvand A, Jafari R, Zahedi S, Farhadi M. Endoscopic Endonasal Removal of a Large Petrous-Apex Epidermoid
Tumor With Clival Involvement and Intradural Invasion. ABS 2012; 1 (1)
URL: http://annbsurg.iums.ac.ir/article-1-245-en.html
URL: http://annbsurg.iums.ac.ir/article-1-245-en.html
Maryam Jalessi1 
, Guive Sharifi 2, Ali Ahmadvand3 , Rozita Jafari4 , Sahar Zahedi5 , Mohammad Farhadi5
, Guive Sharifi 2, Ali Ahmadvand3 , Rozita Jafari4 , Sahar Zahedi5 , Mohammad Farhadi5
1- 1 Endoscopic Skull Base Surgery Unit, ENT-Head and Neck Research Center and Department, Hazrat Rasoul Akram Hospital, Tehran University of Medical Sciences, Tehran, IR Iran
2- 2 Neurosurgery Department, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran
3- 3 Neurosurgery Department, Imam Reza Hospital, Tabriz University of Medical Sciences, Tabriz, IR Iran
4- 4 ENT, Head and Neck Department, Imam Reza Hospital, Tabriz University of Medical Sciences, Tabriz, IR Iran
5- 1 Endoscopic Skull Base Surgery Unit, ENT-Head and Neck Research Center and Department, Hazrat Rasoul Akram Hospital, Tehran University of Medical
2- 2 Neurosurgery Department, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran
3- 3 Neurosurgery Department, Imam Reza Hospital, Tabriz University of Medical Sciences, Tabriz, IR Iran
4- 4 ENT, Head and Neck Department, Imam Reza Hospital, Tabriz University of Medical Sciences, Tabriz, IR Iran
5- 1 Endoscopic Skull Base Surgery Unit, ENT-Head and Neck Research Center and Department, Hazrat Rasoul Akram Hospital, Tehran University of Medical
Abstract: (746 Views)
Introduction: Epidermoid tumors comprise 1% of intracranial tumors. Although reported,
intraosseous epidermoid tumors are even more rare. Cystic lesions of the petrous apex
are uncommon and surgically challenging; the most rare pathology is presumed to be
epidermoid.
Case Presentation: This is a case of a 61-year-old woman with a large skull-base tumor extending
inferiorly from the C1-C2 articulation and superiorly to the tuberculum sella.
The lesion replaced the left-sided petrous apex, and the lateral extension of the tumor
reached the styloid process. The tumor displayed intradural invasion medial to the internal
auditory meatus, producing an intra-axial mass at the level of the upper pons.
The patient presented with a 4-month history of headache and total unilateral deafness.
Under image guidance, an endoscopic endonasal approach was used to totally resect the
tumor. By following the tumor’s dural defect, the intra-axial part of the tumor was safely
resected, and the dural defect was successfully repaired.
Conclusions: Image-guided endoscopic endonasal surgery is a versatile approach that
can safely and easily address a large epidermoid tumor in this challenging region, obviating
the need for demanding and sophisticated transcranial surgery.
intraosseous epidermoid tumors are even more rare. Cystic lesions of the petrous apex
are uncommon and surgically challenging; the most rare pathology is presumed to be
epidermoid.
Case Presentation: This is a case of a 61-year-old woman with a large skull-base tumor extending
inferiorly from the C1-C2 articulation and superiorly to the tuberculum sella.
The lesion replaced the left-sided petrous apex, and the lateral extension of the tumor
reached the styloid process. The tumor displayed intradural invasion medial to the internal
auditory meatus, producing an intra-axial mass at the level of the upper pons.
The patient presented with a 4-month history of headache and total unilateral deafness.
Under image guidance, an endoscopic endonasal approach was used to totally resect the
tumor. By following the tumor’s dural defect, the intra-axial part of the tumor was safely
resected, and the dural defect was successfully repaired.
Conclusions: Image-guided endoscopic endonasal surgery is a versatile approach that
can safely and easily address a large epidermoid tumor in this challenging region, obviating
the need for demanding and sophisticated transcranial surgery.
Type of Study: Case Report |
Subject:
MIS
Received: 2020/12/24 | Accepted: 2012/08/15 | ePublished: 2012/08/15
Received: 2020/12/24 | Accepted: 2012/08/15 | ePublished: 2012/08/15
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