title: Factors that cause concern.
abstract: Headaches can be benign or life threatening but, with careful attention to the details described in this article, the correct diagnosis and treatment can be arrived at in many cases. Modern imaging techniques have taken the guesswork out of many conditions but a high index of suspicion and attention to red flags helps avoid potential adverse outcomes in headache encounters in a high proportion of cases.
authors: Department of Neurology, University of Missouri School of Medicine-Kansas City, Kansas City, MO 64106, USA. babrams@kc.rr.com
authors: Bernard M
authors: BM
authors: Abrams
mesh_terms: D000208:Acute Disease; D000367:Age Factors; D000783:Aneurysm / Q000150:complications; D002908:Chronic Disease; D048909:Diabetes Complications; D003937:Diagnosis, Differential; D019937:Diagnostic Techniques and Procedures; D006261:Headache / Q000209:etiology*; D051271:Headache Disorders, Secondary / Q000175:diagnosis* / Q000209:etiology*; D006304:Health Status; D006801:Humans; D008487:Medical History Taking; D008581:Meningitis / Q000150:complications; D001523:Mental Disorders / Q000150:complications; D009369:Neoplasms / Q000150:complications; D012720:Severity of Illness Index; D013345:Subarachnoid Hemorrhage / Q000150:complications; D019966:Substance-Related Disorders / Q000150:complications; D013997:Time Factors