Figure 4From: Molecular physiopathogenetic mechanisms and development of new potential therapeutic strategies in persistent pulmonary hypertension of the newborn Pulmonary arterioles from a 22-day-old infant who died from bilateral kidney malformation. Marked thinning of medial muscle mass is evident (PAS-Gieson stains). From Distefano G et al. [12], Med Surg Ped 1992. (Personal observation).Back to article page