health sectionhealth sectionCytomegalovirus, or CMV, is a type of herpes virus. The virus can be very dangerous to those with weakened immune systems.
Your nasopharynx is in the upper part of your pharynx behind your nose. It provides a passageway for air to travel from your nose to your throat and then to your lungs. According to the Mayo Clinic, nasopharyngeal carcinoma within the U.S. is rare. It is more common in Asia and Africa. Factors such as the Epstein-Barr virus can increase the development of this type of cancer. Diagnosing the disease can be difficult, since symptoms mimic other medical conditions, such as ear infections and head congestion.
