Scott BR, et al. - Researchers examined a sample of deployed US military service members following concussion in order to describe their clinical presentation and early clinical course focussing on the impact of preexisting migraine and other co-occurring conditions. The treating neurologist performed a retrospective chart review of 40 service members following concussion in the deployed environment. The analysis revealed that in the deployed settings, concussion does not occur in isolation, the most common being co-morbidity and co-occurring conditions. The most frequently reported acute symptom following concussion was headaches (38/40 patients), followed by insomnia, tinnitus, impaired concentration, nausea, dizziness, anxiety, impaired balance, depression, and hearing loss. Clinical course and overall recovery are seemed to be influenced by the presence of multiple co-morbidities. Posttraumatic headaches are frequently phenotypically fully consistent with migraine and seem linked to preexisting migraine if confirmed by complete predeployment headache history intimating the same. Findings emphasize the significance of undertaking careful and comprehensive history taking and evaluation for recognition of associated conditions including migraine, potentially aiding clinicians with more specific symptom attribution, diagnoses, and better clinical management following an acute concussion.