Things Which Can Grow Inside A Person

Things Which Can Grow Inside A Person:

I recently read from the BBC a story in which a man in Massachusetts went into the hospital expecting a cancer diagnosis after suffering from emphysema for an extended period. It was not a tumor growing inside him, but rather

• A pea:
  
  
  
• A watermelon seed:
  
  
  
• Worms:
  
  
  
• Bamboo:
  
  
  
• Syphilis.