Laryngeal cancer 

Cancer of the larynx is not so common these days, but a full laryngectomy is a life changing event. There is an information sheet and an animation here from Beyond Five:

https://www.beyondfive.org.au/head-and-neck-cancer-types/laryngeal-cancer-introduction

Some useful information from the American Cancer Society:
https://www.cancer.org/cancer/laryngeal-and-hypopharyngeal-cancer/detection-diagnosis-staging/signs-symptoms.html

Atos Medical is a big global company, on of the few making laryngectomy supplies. Their site is informative:

https://www.atosmedical.co.nz/