Peronea arteria magna

Abstract

A 10-year-old girl was evaluated with MR angiography forleft lower extremity varicosities. The arterial phase MIP(Fig. 1) demonstrated an incidental peronea arteria magna(PAM ) of the right calf and a conventional left trifurcation(AT anterior tibial artery, P peroneal artery, PT posteriortibial artery).Anomalous branching of the trifurcation results in adominant peroneal artery in 7–12% of the population, andPAM, in which the peroneal artery is the only vascularsupply to the foot, occurs in 0.2–5.3% [1, 2]. Patients withcongenital or acquired peroneal arterial dominance, espe-cially PAM, are at risk of foot ischemia if this vessel istraumatized, affected by stenoocclusive disease, or har-vested as part of a free fibular graft. Preharvest imaging,such as with MR angiography, has been advocated becausepatients with peroneal arterial dominance can have normaldistal pulses [1].References