NATIONAL CANCER INSTITUTE
plexiform fibrohistiocytic tumor
(PLEK-sih-form FY-broh-HIS-tee-oh-SIH-tik TOO-mer)
A rare tumor found mainly in children and young adults. It usually forms in the skin on the arms and legs. It is slow-growing and usually does not spread to other parts of the body. It is a type of soft tissue tumor.