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Bronchopulmonary sequestration in an infant Background: Bronchopulmonary sequestration is a rare congenital lung malformation, charactarized by an abnormal segment of bronchopulmonary tisue, irrigated by an anomalous systemic artery. Objective: To report the clinical course of an infant with an intralobar bronchopulmonary sequestration and review the most relevant aspects of this lung malformation. Case-report: A six months-old infant, treated for a pneumonia involving the right lower lobe, with persistence of the consolidation image for more than six weeks. Because of a computed tomography (CT) that showed an image suggesting a bronchopulmonay sequestration, the infant was scheduled for surgery, confirming the presence of the intralobar type of the malformation, which was removed without incidents. Conclusion: Bronchopulmonary sequestration is a rare congenital lung malformation, but it has to be considered in the presence of recurrent pneumonia or persisting consolidation images.

Hypercalcemia is an infrecuent complication in pediatric oncology, with an incidence between 0,5 and 3%. It can occur at diagnosis, during the disease course or at relapse, and it is resolved by treating the underlying pathology, requiring in some cases the use of specifi c therapy such as calcitonin and biphosphonates. This article presents 3 cases of children with cancer and hypercalcemia during their illness, analyzing its clinical presentation, pathophysiology and treatment. (Key words: Tumoral hypercalcemia, pediatric oncology, paraneoplasic syndrome). Rev Chil Pediatr 2010; 81 (4): 347-352 RESUMENLa hipercalcemia es una complicación infrecuente en niños con cáncer, con una incidencia que oscila entre 0,5 y 3%. Se puede presentar al diagnóstico, durante el tratamiento o en la recaída de una neoplasia, se resuelve al tratar la enfermedad de base, pudiendo además, requerir el uso de terapia específi ca como calcitonina y bifosfonatos. En el presente artículo se revisan 3 casos clínicos de niños con cáncer que presentaron hipercalcemia en algún momento de su enfermedad, se discute su forma de presentación, fi siopatología y manejo. (Palabras clave: Hipercalcemia Tumoral, cáncer Infantil, Síndrome paraneoplásico). Rev Chil Pediatr 2010; 81 (4): 347-352 CASO CLÍNICO CLINICAL CASE Rev Chil Pediatr 2010; 81 (4): 347-352Trabajo recibido el 13 de noviembre de 2009, devuelto para corregir el 28 de diciembre de 2009, segunda versión el 24 de mayo de 2010, aceptado para publicación el 01 de junio de 2010.

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