PubMed · 10744881
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N Luiz. 1999. Osteogenesis imperfecta lethalis (Type II).. https://pubmed.ncbi.nlm.nih.gov/10744881/
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Pneumothorax (PTX) is an unusual complication of Langerhans cell histiocytosis (LCH) in childhood. Spontaneous PTX is rare in childhood, and it is very rare in infancy. There are no specific recommendations for the treatment of PTX from LCH described in the literature. We are presenting a 19-month-old boy, who suddenly developed left-sided PTX with infiltrations in both lungs. He presented with PTX and skin lesions. He had a prolonged cardiac arrest, and although resuscitation was successful he required continuing ventilatory support (intermittent positive-pressure ventilation). Because he suddenly developed right-sided PTX and died on the second day of the admission, his LCH diagnosis was made only postmortem. So, he did not receive chemotherapy. It is likely that intermittent positive-pressure ventilation during the operation induced the development of much more multiple lung bullae, which subsequently ruptured, and/or it facilitated the development of the right-sided PTX. The patients with PTX and skin lesions, including babies, most likely have LCH and specific chemotherapy should be started in emergency, even before the final diagnosis is achieved.
Infantile myofibromatosis, the most common fibrous tumor of infancy, occurs in solitary, multiple, and generalized forms, with similar histology but different clinicopathologic and prognostic implications. This entity is a mesenchymal disorder characterized by the proliferation of fibrous tumors in the skin, muscles, viscera, bones, and subcutaneous tissues. Visceral lesions are associated with significant morbidity and mortality, generally within the first few months of life. They lead to failure to thrive, to infection, hemorrhage, or to the obstruction of vital organs. We describe two cases of multicentric myofibromatosis with significant in utero lesional growth, resulting in one fetal demise and one post-natal demise. To the best of our knowledge, this is the first report of a fetal death secondary to infantile myofibromatosis.