Laryngeal papillomatosis is a disease consisting of tumors that grow inside the larynx (voice box), vocal cords, or the air passages leading from the nose into the lungs (respiratory tract). It is a rare disease caused by the human papilloma virus (HPV).
Although scientists are uncertain how people are infected with HPV, they have identified more than 60 types of HPVs. Tumors caused by HPVs, called papillomas, are often associated with two specific types of the virus (HPV 6 and HPV 11). They may vary in size and grow very quickly. Eventually, these tumors may block the airway passage and cause difficulty breathing.