Adverse neurologic reactions to the sting of the imported fire ant.

While the cutaneous manifestations of the imported fire ant (IFA) sting are well known, neurologic sequelae are much more unusual. We report 2 cases of grand mal seizures associated with the sting of the IFA. The first patient suffered numerous stings without evidence of systemic reactions prior to the onset of the seizure. The second patient had manifestations of anaphylaxis prior to the occurrence of seizure. In both cases, the onset of seizures was delayed. As the geographic range of the IFA increases and more patients are stung, unusual reactions will be seen in greater frequency.