In another study [57], it was shown that PUFAs with longer chain lengths, such as FA(20:5) and FA(22:6), were significantly higher in lung pleural effusions from EGFR mutant NSCLC patients compared to non-EGFR mutant, suggesting that they may play a role in sustaining the activation of mutant EGFR. Here, EGFR is linked to non-small cell lung carcinoma.