Respiratory disorders of four children with Poland's syndrome are discussed in this article. Paradoxical respiration was recognized at the hypoplastic region of the chest wall in all patients. Transient atelectasis of the lung adjacent to the lesion was observed in two patients and bronchial asthma developed in one patient. All three patients recovered as they grew up. One patient remained to be asymptomatic. Although respiratory disorders in Poland's syndrome tend to develo in childhood, they are managed well with conservative therapy.

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We present a patient with a vascular ring due to a remnant vessel.A six-month-old boy was admitted because of acute respiratory failure.His respiratory distress was so severe that we made endotracheal intubation, and started mechanical ventilation.In spite of usual treatments for severe asthmatic attack, his respiratory state did not improve.
Deviated and unclear tracheal translucency on chest roentgenogram suggested congenital tracheostenosis or compression by great vessels.Through a close examination of the enhanced chest CT, we found a diverticulum of right descending aorta and a very fine remnant vessel that connected left pulmonary artery to right descending aorta.So he was made a diagnosis of vascular ring of Type HI Alb defined by Stewart.After division of the remnant vessel, his respiratory state improved.
We must be careful that fixed expiratory wheezes in an infant indicate organic lesion of respiratory tract.

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We experienced an infant with a sudden onset of croup-like symptom which did not respond to medical treatment.At a later time, further examination revealed a foreign body, a piece of sticker, in the larynx.Recent literature also showed that a diagnosis of laryngeal foreign body (LFB) is prone to be delayed.We considered that the thin plate-like or needle-like shape of LFB accounts for one of the reasons for the delayed diagnosis. For atypical croup syndrome, we should suspect LFB and ask the parents of the possibility of aspiration especially emphasizing the shape of the object.

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