Preliminary analysis of immune-related markers in thymic carcinoid.

The immune-related microenvironment of thymic carcinoid has rarely been reported. We analyzed the expression of PD-L1 and VISTA, and the distribution of CD4 + T cells, CD8 + T cells and CD68 + macrophages in the thymic carcinoid by immunohistochemical staining, and showed the correlation between these markers and clinical survival, indicating the potential therapeutic prospects.