A dense granule-like organelle of the apical complex of merozoites, released into the parasitophorous vacuole, mediating protease-dependent rupture and parasite exit from the infected erythrocyte. [ GOC:jl http://www.ncbi.nlm.nih.gov/pubmed/18083092 http://www.ncbi.nlm.nih.gov/pubmed/18083098 ]