Is it possible for a professional singer to get back lost octave after larynx po

Question:

Is it possible for a professional singer to get back lost octave after larynx polyp/vocal nodule removal?

or that surgery just worsen the problem make the singer cant sing at all? (high risk of destroy vocal cord)
any singer here can get upper range voice back after polyp removal?

Best Answer - Chosen by Asker:

it is very rare but yes they can