Patients with ulcerative colitis may have a presentation dominated by extraintestinal manifestations. These manifestations, particularly bronchiectasis, are very rarely seen in pediatric patients. A 13-year-old boy with ulcerative colitis who was diagnosed by colonic mucosa biopsy is presented. He developed unexplained productive cough after the appearance of colonic disease. He was treated and followed up at his primary care hospital with the sole diagnosis of ulcerative colitis, with little attention given to the chest symptoms. The relation of the bronchial involvement to the ulcerative colitis was not established until two years after the onset of disease. Thoracal computed tomography (CT) examination after this period showed evidence of bronchiectasis and pulmonary involvement. Despite prophylactic inhaled corticosteroid treatment, no clinical or radiographic improvement was observed and widespread bronchial destruction developed very rapidly. More effective treatment with oral steroids was probably necessary in this patient, if the early chest symptoms were related to the ulcerative colitis.