part_of starts_at ends_at genital tubercle ventrolateral genital swelling anatomical_structure The ventrolateral genital swelling (vlgs) (syn: lateral plate mesoderm buds, ventrolateral genital tubercle) (TS:18-TS:19) is seen as paired lateral swellings on the surface of the embryo at the level of the hind limb buds, adjacent to the cloaca. Will fuse together and with the dorsal genital swelling, to form part of a single genital tubercle at TS:19. lateral plate mesoderm buds EMAPA:30079 ventrolateral genital tubercle TS19