(UroToday.com) In a prior publication, the authors of this abstract published results confirming plasma expression of the microRNA 371a-3p (miR371) can be utilized as a sensitive and specific marker of active germ cell malignancy in patients. In this abstract, Dr. Lucia Nappi and colleagues present updated follow-up data with miR371 expression data to further define the utility of this test in predictive relapse in clinical stage 1 and 2A patients.