Neointima typically refers to scar tissue that forms within tubular anatomical structures such as blood vessels, as the

intima The tunica intima (New Latin "inner coat"), or intima for short, is the innermost tunica (biology), tunica (layer) of an artery or vein. It is made up of one layer of endothelium, endothelial cells and is supported by an internal elastic lamina. ...

is the innermost lining of these structures. Neointima can form as a result of vascular surgery such as

angioplasty Angioplasty, is also known as balloon angioplasty and percutaneous transluminal angioplasty (PTA), is a minimally invasive endovascular procedure used to widen narrowed or obstructed arteries or veins, typically to treat arterial atherosclero ...

or stent placement. It is actually due to proliferation of smooth muscle cells in the media giving rise to appearance of fused intima and media

References

Medical terminology {{circulatory-stub