abnormal forebrain morphology brain atrophy forebrain atrophy 2014-01-01T11:30:46Z MP:0012508 MPheno.ontology acquired diminution of the size of the forebrain associated with wasting as from death and reabsorbtion of cells, diminished cellular proliferation, decreased cellular volume, pressure, ischemia, malnutrition, reduced function or malfunction, or hormonal changes atrophic forebrain atrophic prosencephalon csmith prosencephalon atrophy