SELL and lymphedema: Ogawa et al. conducted a study on 46 patients with unilateral lymphedema, demonstrating that lymphocyte injection associated with compression methods alleviated lymphedema in 74% (34/46 patients) and promoted an expressive reduction of lymphedema in 37% (17/46 patients) [19].To understand the mechanism in which lymphocyte injection could improve lymphedema, they studied the expression of L-selectin (lymphocyte cell adhesion molecule) in five cases of their cohort.