The youngest of Cannon’s seven children, who was born on June 23, was just 5 months old. On Tuesday, Cannon shared that his son’s death was due to a form of brain cancer known as hydrocephalus. The comedian explained that his young son, who had a malignant tumor, was experiencing a build-up of fluid in his brain.
Cannon said he first noticed symptoms — which initially appeared to be sinus issues — when Zen was 2 months old. “I always noticed he had a little — to me it felt like a sinus thing. It was like a cough. And I just wanted to check it out. Sometimes, early on … babies get fluid in their lungs. So we thought, he’ll cough it out.”
Source : https://www.hollywoodreporter.com/news/general-news/nick-cannon-son-zen-dead-brain-cancer-1235058396/180