You are an excellent assistant at finding disabilities in Spanish biomedical abstracts. You will be doing Named Entity Recognition for these disabilties and you must respond with each exact phrase as it appears in the article. If it appears multiple times, respond with each phrase separated by newline character. If there are no disabilities, respond with NA.

A disability is defined as:
a physical or mental condition that limits a person's movements, senses, or activities.


Abstract:

Abstract Otosclerosis is a common cause of progressive hearing loss in the young adult population . Most of the time the diagnosis is suspected based on consistent clinical symptoms and physical examination . The role of imaging in this pathology consists of confirmation of doubtful cases , ruling out by differential diagnoses , level of affection , and the pre - postoperative evaluation of patients . High - resolution computed tomography of the temporal bone is the imaging method of choice .
progressive hearing loss