The aim of this study was to determine whether neural tissue is present in
the bone 'dust' given off during temporal bone drilling. Bone 'dust' from t
hree temporal bone dissections was collected and examined. Evidence of neur
al tissue was present in two out of the three specimens. Neural tissue is p
resent in the bone dust given off during temporal bone drilling. This poses
the question as to the risk of prion transmission during such dissection.