splenulus

ac·ces·so·ry spleen

[TA] one of the small globular masses of splenic tissue occasionally found in the region of the spleen, in one of the peritoneal folds or elsewhere. Synonym(s): splen accessorius [TA], lien accessorius ☆ , lien succenturiatus, lienculus, lienunculus, spleneolus, spleniculus, splenule, splenulus, splenunculus

splenulus

S15-885920, splenunculus (splĕn′ū-lŭs) [L., a little spleen] A rudimentary or accessory spleen.