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KEY FACTS
Terminology
Imaging
Top Differential Diagnoses
Pathology
Clinical Issues
TERMINOLOGY
Abbreviations
Petrous apex (PA)
Synonyms
PA pseudolesion
Definitions
PA asymmetric marrow: Asymmetric pneumatization of PA with nonpneumatized marrow space in opposite PA simulating mass lesion
IMAGING
General Features
CT Findings
MR Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Selected References
Bag AK et al: Neuroimaging: intrinsic lesions of the central skull base region. Semin Ultrasound CT MR. 34(5):412-35, 2013
Wu H et al: Coexistence of a pseudolesion and a true lesion in the same location: a rare misleading imaging finding. Am J Otolaryngol. 33(2):266-7, 2012
Schmalfuss IM: Petrous apex. Neuroimaging Clin N Am. 19(3):367-91, 2009
Connor SE et al: Imaging of the petrous apex: a pictorial review. Br J Radiol. 81(965):427-35, 2008
Leonetti JP et al: Incidental petrous apex findings on magnetic resonance imaging. Ear Nose Throat J. 80(4):200-2, 205-6, 2001
Moore KR et al: 'Leave me alone' lesions of the petrous apex. AJNR Am J Neuroradiol. 19(4):733-8, 1998
Virapongse C et al: Computed tomography of temporal bone pneumatization: 1. Normal pattern and morphology. AJR Am J Roentgenol. 145(3):473-81, 1985
Related Anatomy
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Related Differential Diagnoses
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References
Tables
Tables
KEY FACTS
Terminology
Imaging
Top Differential Diagnoses
Pathology
Clinical Issues
TERMINOLOGY
Abbreviations
Petrous apex (PA)
Synonyms
PA pseudolesion
Definitions
PA asymmetric marrow: Asymmetric pneumatization of PA with nonpneumatized marrow space in opposite PA simulating mass lesion
IMAGING
General Features
CT Findings
MR Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Selected References
Bag AK et al: Neuroimaging: intrinsic lesions of the central skull base region. Semin Ultrasound CT MR. 34(5):412-35, 2013
Wu H et al: Coexistence of a pseudolesion and a true lesion in the same location: a rare misleading imaging finding. Am J Otolaryngol. 33(2):266-7, 2012
Schmalfuss IM: Petrous apex. Neuroimaging Clin N Am. 19(3):367-91, 2009
Connor SE et al: Imaging of the petrous apex: a pictorial review. Br J Radiol. 81(965):427-35, 2008
Leonetti JP et al: Incidental petrous apex findings on magnetic resonance imaging. Ear Nose Throat J. 80(4):200-2, 205-6, 2001
Moore KR et al: 'Leave me alone' lesions of the petrous apex. AJNR Am J Neuroradiol. 19(4):733-8, 1998
Virapongse C et al: Computed tomography of temporal bone pneumatization: 1. Normal pattern and morphology. AJR Am J Roentgenol. 145(3):473-81, 1985
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