Dictionary of Cancer Terms
View in Spanish: Neurofibromatosis tipo 1
Neurofibromatosis type 1 (NOOR-oh-FY-broh-muh-TOH-sis tipe 1)
A rare genetic condition that causes brown spots and tumors on the skin, freckling in skin areas not exposed to the sun, tumors on the nerves, and developmental changes in the nervous system, muscles, bone, and skin. Also called NF1.
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.