“The organelle, a type of specialized structure, has been dubbed a "hemifusome" by its discoverers at the University of Virginia School of Medicine and the National Institutes of Health.

…The scientists believe hemifusomes facilitate the formation of vesicles, tiny blister-like sacs that act as mixing bowls, and of organelles made up of multiple vesicles. This process is critical to cellular sorting, recycling and debris disposal, the researchers report.

"You can think of vesicles like little delivery trucks inside the cell," said Ebrahim, of UVA's Center for Membrane and Cell Physiology. "The hemifusome is like a loading dock where they connect and transfer cargo. It's a step in the process we didn't know existed."”

https://phys.org/news/2025-06-scientists-unknown-organelle-cells.html