*30-year-old patient with hearing loss
What is the most likely diagnosis?
Answer
Answer: Otosclerosis
Case Discussion:
CT through the left temporal bone shows area of demineralization anterior to the oval window.
Otosclerosis is an idiopathic bone disease and causes deafness in adults and typically seen older patients. Otosclerosis has been described as bilateral in 80% of cases (1). It can occur at the fissula ante fenestram beside around the cochlea. CT is the modality of choice (2).
References:
1. Nager GT. Otosclerosis. In: Nager GT. Pathology of theEarandTemporal Bone. Baltimore: Williams & Wilkins;1993 :943–1010
2. Mafee MF, Valvassori GE, Deitch RL et-al. Use of CT in theevaluation of cochlearotosclerosis. Radiology. 1985;156 (3): 703-8.