P2RX1 and neoplasm: In order to prevent the possible influence of the tissue-of P2RX1 and reanalyzed 9 patients with tumor cell load higher than 80% at the time of initial diagnosis, among 4 patients with good prognosis and P2RX1 expression higher than the mean, 5 patients with poor prognosis and P2RX1 expression lower than the mean.