Infantile neuroaxonal dystrophy (INAD), also known as PLA2G6-associated neurodegeneration (PLAN), is a rare, early-onset, autosomal recessively inherited neurodegenerative disease belonging to the group of neurodegenerations with brain iron accumulation (NBIA). The gene discussed is PLA2G6; the disease is neurodegeneration with brain iron accumulation 2A.