[Sudden infant death syndrome (SIDS): a case with accessory pathways and resorptive degeneration]

We report the case of a 71 day-old female infant victim of SIDS. Histological observations were focused on the cardiac conduction system. We observed accessory pathways of Mahaim type with areas of resorptive degeneration. These findings, associated with particular conditions and/or neurovegetative stimuli, could cause potentially malignant arrhythmias.