has part has part has_part characteristic of has modifier abnormal spleen white pulp morphology increased spleen white pulp amount MPheno.ontology increase in the quantity of the parenchymatous tissue of the spleen that surrounds splenic blood vessels, consists of compact masses of lymphatic cells and is where foreign material removed from the blood is used to initiate an immune reaction that results in the production of antibodies increased splenic white pulp amount MP:0008478 abnormal increased amount white pulp of spleen