PD-L1 and tumor-infiltrating CD8⁺ lymphocytes are correlated with clinical characteristics in pediatric and adolescent pituitary adenomas.

Although high-risk adenomas did not reach statistical significance in the above analysis, there was a tendency that such clinically distinct adenomas to be associated with tumor recurrence (chi-square test, p = 0.079; Kaplan–Meier analysis, p = 0.086; multivariate Cox analysis, p = 0.08).

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