Sono stati eseguiti 35 esami SPECT con 99mTc-sesta-MIBI su 28 pazienti affetti da tumore cerebrale primitivo maligno e già sottoposti ad intervento chirurgico, radioterapia e chemiotera-pia. Gli esami sono stati confrontati con TC e/o RM per valutarne l'utilità nella diagnosi differenziale tra recidiva del tumore e radionecrosi. In mancanza di un sicuro riscontro chirurgico o autoptico, è stato tenuto conto dell'evoluzione successiva della lesione alla TC e/o alla RM. Con questo criterio sono risultati 6 casi falsi negativi e 1 caso falso positivo alla SPECT.
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