Primārā audzēja atjaunošanās sekundārā formā, kas nav primārā audzēja recidīvs

Secondary primary tumors

Sometimes both a primary brain and a secondary tumor can occur in the same patient over different times and even more rarely at the same time.
Studies based on autopsies have verified that 40% of patients with head and neck cancers died from local relapses without evidence of distant metastases or secondary primary tumors (32%), whereas only 5% of patients died from distant metastases alone [17].