Oh, what a surprise, another rare genetic anomaly has been discovered! This time, it’s the partial trisomy of the long arm of chromosome 17, which, in a shocking twist, causes a variety of issues like facial dysmorphisms, skeletal abnormalities, and global developmental delay. But wait, there’s more! This genetic jackpot might also include cardiovascular, renal, and central nervous system abnormalities. Because, you know, why not?

Now, in this latest episode of “Genetic Oddities,” we have a child with a microduplication of the distal end of 17q who’s sporting some fabulously enlarged and tortuous cortical veins. And guess what? They come with physiological antegrade flow—how trendy! Apparently, this is a brand new neuroradiologic finding. Cue the fanfare, because nobody has ever described this before. It’s almost like we’re collecting Pokémon here.

But don’t get too excited, because the cause of this vascular fashion statement is, alas, unknown. However, fear not, for the duplicated region contains some “genes of interest” that could be the future rock stars of angiogenesis research. So, stay tuned for the next thrilling installment where we might just figure out why these veins decided to go rogue. Spoiler alert: it’s probably the genes.