Welcome to the AAP Pathology News OPIOID USE IN MURINE MODEL RESULTS IN SEVERE GASTRIC PATHOLOGY THAT MAY BE ATTENUATED BY PROTON PUMP INHIBITION.BNIP3 is involved in muscle fiber atrophy in Late-Onset Pompe Disease patientsBringing Clarity to the Murky Problem of Cardiac Allograft VasculopathyThis Month in AJPEditorial Board