03/15/2026
During cadaveric dissection, a rare variation of the superficial palmar branch of the radial artery (SPRA) was observed:
The artery coursed superficial to the thenar muscles rather than deep to them.
It gave rise to the princeps pollicis and radial indicis arteries after contributing to the superficial palmar arch.
Takeaway: Recognizing vascular variations can help surgeons avoid iatrogenic injury during wrist and hand procedures.
Surgeons: Have you encountered unexpected vascular anatomy during hand surgery?
Read more here: https://hubs.la/Q045KtC_0