Medial canal fibrosis is characterized by fibrous tissue formation in the medial part of the bony external auditory canal.
Patients can present with conductive hearing loss, otorrhea and/or a history of chronic otitis.
- a thickened tympanic membrane with edematous and mildly thickened medial external auditory canal mucosa
- crescentic area of soft tissue thickening overlying the lateral tympanic membrane surface and extending laterally in to fill the medial external auditory canal
- no bony erosive changes
- 1. Harnsberger HR, MBBS CMG, Michel MA et-al. Diagnostic Imaging Head and Neck. Lippincott Williams & Wilkins. ISBN:1931884781. Read it at Google Books - Find it at Amazon
- 2. Trojanowska A, Drop A, Trojanowski P et-al. External and middle ear diseases: radiological diagnosis based on clinical signs and symptoms. Insights Imaging. 2012;3 (1): 33-48. doi:10.1007/s13244-011-0126-z - Free text at pubmed - Pubmed citation
- 3. Heilbrun ME, Salzman KL, Glastonbury CM et-al. External auditory canal cholesteatoma: clinical and imaging spectrum. AJNR Am J Neuroradiol. 2003;24 (4): 751-6. AJNR Am J Neuroradiol (full text) - Pubmed citation