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 Case Report We review a patient with ocular manifestations of a paraneoplastic syndrome . It was a cancer - associated retinopathy ( CAR ) in a woman with visual loss , and attenuated and sheathed retinal arterioles . The electroretinography ( ERG ) showed severe abnormalities of the a and b - waves . The tumour process was not discovered until 6 months later , when a squamous neoplasia that invaded the uterus and vagina was observed . Discussion Paraneoplastic syndromes are a group of manifestations produced as a remote effect of cancer cells . CAR syndrome is caused by autoimmune reactions to retinal antigens induced by aberrant expression of recoverin in cancer tissues . Ophthalmologists must be aware of ocular paraneoplastic signs as they can be the first manifestations of a malignant tumour .
visual loss