Is alveolar histotype a prognostic factor in paratesticular rhabdomyosarcoma?
Our data suggest a distinctly better clinical behavior of paratesticular alveolar RMS than when the disease occurs at other sites. These patients were more intensively treated than the embryonal cases, however, so-although a treatment intensity reduction may be desiderable-the idea of eliminating the alkylating agents (as in low-risk embryonal paratesticular RMS) must be considered with great caution.
Health claims files offer potential for epidemiologic research in the United States, although the full extent and guidelines for successful application await further clarification through empiric research.