Although the mechanism of the preferential involvement of lymphoma cells to the adrenal glands in IVLBCL remains unknown, its association with a lack of homing receptors and adhesion molecules, including CD29 (β1 integrin) and CD54 (intercellular adhesion molecule 1), has been hypothesized [9, 10], and this might be one of the distinct characteristics of IVLBCL. Here, ICAM1 is linked to lymphoma.