metanephric mass

metanephric mass

the mass of intermediate mesodermal cells around the distal end of the metanephric diverticulum that give rise to nephrons in the permanent kidneys.
References in periodicals archive ?
This creates a physiologic conundrum: How can a nonfunctional, disordered metanephric mass produce an ultrafiltrate of sufficient "toxicity" or pressure to perturb the development of subsequent nephron formation.