Prognosis for Rhabdomyosarcoma Prognosis is based on Cancer location (eg, prognosis is better with nonparameningeal head / neck and nonbladder / nonprostate genitourinary cancers) Completeness of resection Presence of metastasis Age (prognosis is worse for children < 1 year of age or > 10 years of age Histology (embryonal histology is associated with a better outcome than alveolar histology) Combinations of these prognostic factors place children in a low-risk, intermediate-risk, or high-risk category.