THE MOTHER-IN-LAW EFFECT

Derek Harwood Nash, one of the pioneers of neuroradiology, wanted to find an easy way to describe the DSA (digital subtraction angiography) behaviour of meningioma. He noticed that the tumour blush in a meningioma comes very early (early wash-in); normally it is very dense and persistent with a delayed wash-out. This reminded him the behaviour of an unwanted guest who comes early and stays late, and the guest that classically do this is actually the mother-in-law. Meningioma has both a dural and a pial blood supply and a sunburst or radial appearance of the feeding arteries. Depending on the location you may have to perform internal carotid, external carotid, ab vertebral injections. In the typical sphenoid wing meninigioma, the middle menigneal artery is enlarged.
Here is link to see mother-in-law effect.
syndicated from NeuroRAZiology..