Recurrent respiratory papillomatosis is caused by human papillomavirus Human Papillomavirus (HPV) Infection Human papillomavirus (HPV) causes warts. Some types of HPV cause skin warts, and other types cause genital warts (growths in or around the vagina, penis, or rectum). Infection with some HPV... read more 
(HPV), a virus that causes skin warts and genital warts. Infants may get infected by this virus as they pass through the birth canal if their mother has an HPV infection of her genital region.
HPV infection of the airway can cause multiple, wartlike growths around the voice box Throat The throat (pharynx) is located behind the mouth, below the nasal cavity, and above the hollow tube that leads from the throat to the stomach (esophagus) and windpipe (trachea). It consists... read more and/or in the windpipe (trachea). The growths often come back (recur) after treatment. Rarely, they become cancerous (malignant).
Although laryngeal papillomas can occur at any age, they most commonly affect children aged 1 to 4 years.
Symptoms
Papillomas are suspected when parents notice hoarseness, a weak cry, or other changes in the child’s voice. Older children may have trouble speaking. Papillomas in the windpipe can interfere with breathing.
Diagnosis
Biopsy
Laryngeal papillomas are detected using a laryngoscope to view the voice box. Doctors remove a piece of the papilloma for examination (biopsy) to confirm the diagnosis.
Prevention
Women who get the HPV vaccine Human Papillomavirus (HPV) Vaccine The human papillomavirus (HPV) vaccine helps protect against infection by the strains of HPV that are most likely to cause the following: Cervical cancer, vaginal cancer, and vulvar cancer in... read more are less likely to become infected and thus less likely to pass HPV on to their children.
Treatment
Surgical removal
Although some tumors may begin to disappear at puberty, treatment of recurrent respiratory papillomatosis is recommended. Surgical removal is the usual treatment. Many children require numerous procedures throughout childhood to remove the tumors as they reappear.
Other treatments (such as pulsed-dye laser therapy or photodynamic therapy— see Using Lasers to Treat Skin Problems Using Lasers to Treat Skin Problems 
) as well as an antiviral drug (cidofovir) or a drug that is used to treat cancer (bevacizumab) may be given to children who have a severe case.
More Information
The following is an English-language resources that may be useful. Please note that THE MANUAL is not responsible for the content of this resource.
Recurrent Respiratory Papillomatosis Foundation (RRPF): A resource providing information and support for parents and caregivers
