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2 newborns, boys weighing 1400 and 950 g, died 2 and 8 hours after birth respectively. Autopsy was not permitted but MRI was possible. In the first newborn, characteristic abnormalities ofa Potter's sequence were found: pulmonary hypoplasia, missing kidneys and ureters and a rudimentary bladder. Clinically, a small chest, low-positioned ears, a flattened nose, a retracted chin, contractures of both knees and a talipes equinus of both feet had already been observed. In the second newborn, an MRI scan of the skull revealed a torn cerebellar tentorium with intracranial bleeding. The cause of death in newborns is often unknown. Autopsy is the gold standard for determining the cause of death. However for a variety of reasons, many parents do not give informed consent for autopsy. In such cases, post-mortem MRI may be an alternative. Abnormalities ofthe central nervous system, muscles and internal organs can usually be clearly visualized using MRI. However, the diagnosis of cardiac abnormalities using this technique is more difficult.

Three children, 2 girls aged 1.5 and 3 years and a 2-year-old boy, experienced coughing, wheezing and/or fever for several days or weeks. The first girl was treated for asthma, the other two children for pneumonia. Because the symptoms persisted in all three children after treatment was started, the diagnosis of foreign body aspiration was suggested and confirmed by bronchoscopy. The foreign body was removed during the bronchoscopy and in the boy, a mucosal lesion in the piriform fossa was sutured. Thereafter, all the children recovered completely. In children with persistent coughing, wheezing or fever despite treatment for pneumonia or asthma and in absence of a characteristic acute incident, foreign body aspiration should be considered.