Items tagged “petrous apex”
2 results found
Cholesterol granuloma (CG) is a special type of middle ear granulation tissue which is particularly prone to bleeding, and is a frequent cause of a haemotympanum. Cholesterol granulomas represent the most common cystic lesion of the petrous apex. Epidemiology Cholesterol granulomas typically ...
Asymmetric fatty bone marrow of the petrous apex
Asymmetric pneumatisation of petrous apex results in asymmetric fatty bone marrow within the petrous apex. It is a common incidental finding on brain and skull base MRI. Clinical presentation Asymptomatic. Pathology Asymmetric pneumatisation of the petrous apex results in the presence of bon...