AHR and neoplasm: As expected, sequence analysis showed a degenerated letter codes in tumor DNA (Figure 1C, right panel, and Figure S1) as compared to DNA from blood of the same patients (Figure 1C, left panel, and Figure S2) and healthy pituitary tissue (Figure 1C, lower panel, and Figure S3), suggesting a putative upstream deletion in the AHR exon 10 only in tumor tissue.