Two patients suffered minor head injuries diagnosed as cerebral concussions. Both had normal CTs in the emergency room but developed progressive neurologic symptoms weeks later. Both had large subdural hematomas requiring surgical drainage. Physicians should be alert for neurologic deterioration in patients with minor head injuries, even after normal CTs.
a Mutated ras genes (Ha-, Ki-and N-ras) have been found in a variety of human tumours (Barbacid, 1987). Although in some tumour types the incidence of mutations is relatively high (Bos, 1989), the practical value of these findings in cancer diagnosis and/or prognosis has not been established. Here we report the detection of a mutation of Ha-ras gene codon… (More)