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 Isolated congenital hypoaldosteronism is a rare disorder that presents as chronic salt - wasting syndrome during infancy . Aldosterone synthase deficiency due to mutations in _CYP11B2_ is the underlying cause in most cases . Apart from the classical electrolyte disturbances ( hyponatremia and hyperkalemia ) , no other extra - adrenal features have been described to date . We report a male child with congenital hypoaldosteronism due to a homozygous missense mutation ( Thr318Met ) in _CYP11B2_ who also presented with unexplained sensorineural hearing loss .
unexplained sensorineural hearing loss