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:

Cogan's syndrome is a chronic inflammatory disease typified by interstitial keratitis and Meniere - like auditory involvement , and it can be accompanied by systemic vasculitis . It's a rare disease and its diagnosis is difficult and often late , which increases the risk of sequelae , such as visual loss or deafness . In addition , its treatment is not well - established and is based on case reports that have observed efficacy of drugs such as cyclophosphamide , anti - TNF or tocilizumab . A case of Cogan's syndrome is presented that did not respond to methotrexate , cyclophosphamide , or anti - TNF , but with a partial response to tocilizumab .
visual loss
deafness