Angiofibroma (Juvenile nasopharyngeal angiofibroma)

Angiofibroma (Juvenile nasopharyngeal angiofibroma):

Angiofibroma is a benign nasal cavity tumor that almost exclusively affects "adolescent boys". It also may be referred to as juvenile nasopharyngeal angiofibroma (JNA).
The age range for this disease is 7 to 19 years old, with most patients being diagnosed between 10 and 19 years old. Juvenile nasopharyngeal angiofibroma is the most common benign tumor of the nasopharynx, but has a relatively low incidence and accounts for only 0.5 percent of all head and neck tumors. Though benign, it often acts in a malignant manner by eroding into the surrounding sinuses, orbit, or cranial vault.