Clinical findings in patients with allergic rhinitis.

Clinical observations, X-ray findings and results of laboratory tests were evaluated in 770 patients with allergic rhinitis. Anamnestic data and results of the allergological examination of these patients have been presented elsewhere (Holopainen et al., 1979b; Binder et al., 1982). Allergic symptoms were seasonal in 54.5% and perennial in 45.5% of the patients. Mucosal changes as seen on rhinoscopy were significantly more common among patients with perennial than among patients with seasonal rhinitis. Watery discharge was the most common nasal finding, observed in 90% of all patients. Nasal smears showed increased numbers of eosinophilic leucocytes in 70% of the cases. Relationships between the cellular population of the nasal secretion, other laboratory test results and clinical findings are described. X-ray examination revealed pathological changes in the paranasal sinuses in 53.4% of the patients.