Atypical anxiety disorder: a descriptive study

This retrospective study examined 75 outpatients who received an atypical anxiety disorder diagnosis in a 30-month period. Patients who were later rediagnosed tended to have multiple anxiety diagnoses. "Atypical," in this sense, meant that insufficient information was available to arrive at specific anxiety diagnoses. A subgroup that continued to be diagnosed as atypical throughout their treatment tended to have multiple subsyndromal complaints, unusual symptoms, or both. This subgroup raises questions regarding the cutoff criteria for the anxiety disorders in DSM-III and DSM-III-R and suggests a possible new diagnostic subtype for future investigation.