PubMed · 5154586
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J L Bengoa Galdona, J Aguirrt Julio, M Quilodran Vera, M Figueroa Jeria, L Silva Risopatron. [Pulmonary sequestration].. https://pubmed.ncbi.nlm.nih.gov/5154586/
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The differential diagnosis of echogenic areas in the fetal chest include congenital diaphragmatic hernia (CDH), cystic adenomatoid malformation (CAM), sequestrated lung and tracheal or bronchial atresia. The purpose of this study was to evaluate the accuracy of prenatal diagnosis and document outcome in fetuses with echogenic chest lesions. Seventeen fetuses with echogenic chest masses were seen in our unit between 17 and 36 weeks' gestation over a 5-year period. We reviewed these cases retrospectively for prenatal diagnosis, postnatal diagnosis and outcome. Prenatal diagnosis was correct in 13 fetuses, with CDH in 8, sequestrated lung in 4 and tracheal atresia in 1. Four fetuses had incorrect or uncertain prenatal diagnoses. In three fetuses CDH and CAM could not be differentiated. After delivery two of these had CDH and one had sequestrated lung. One fetus with bilateral lesions had prenatal diagnosis of bilateral CAM. Post-mortem examination revealed tracheal atresia as part of Fraser syndrome. All five babies with sequestrated lung are well and none required surgery. Ten fetuses had CDH, two pregnancies were terminated, one died in utero, five died as neonates and two babies survived following surgery. The study reveals that in a minority of fetuses CDH and CAM could not be differentiated prenatally. We agree with recent reports of fetal sequestrated lung describing sonographic improvement in utero. A large lesion on initial scan does not necessarily predict a poor neonatal outcome in this condition. This, together with the poor outcome in fetuses with echogenic CDH and tracheal atresia, has important implications for prenatal counselling.
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UNLABELLED: THE PURPOSE of this work was to study the pre- and postnatal features of extra-lobar pulmonary sequestration (ELPS) and consider their diagnosis and treatment. METHODS: Five ELPS diagnosed prenatally (1986-1992) were reviewed retrospectively. RESULTS: In 2 cases, prenatal diagnosis was based on the presence of a left suprarenal mass for which tumor markers proved negative postnatally. These 2 infants underwent surgery at 3 weeks of age for supposed neuroblastoma or teratoma. In the other 3 cases, diagnosis was based on the presence of a solid mass at the left base of the thorax. The systemic vessel was visualized in 2 of these cases; mediastinal displacement was noted in one case and hydrothorax (which recurred after puncture) in the other. The latter infant was born at 34 weeks of amenorrhea, and hydrothorax disappeared postnatally after excision of the ELPS. The other two infants were asymptomatic at birth and underwent surgery respectively on the 8th day and during the 6th month of life. CONCLUSION: ELPS can take the form of a mass in the abdomen or at the base of the thorax. For subdiaphragmatic ELPS, surgical excision (possibly preceded by percutaneous puncture) is required if the diagnosis is uncertain. Supradiaphragmatic ELPS can be complicated prenatally by hydrothorax or even hydrops, requiring drainage in utero. If the infant is asymptomatic postnatally, systematic surgical excision should be considered. Extra-lobar pulmonary sequestrations (ELPS) are masses of nonfunctional lung tissue vascularized by an abnormal systemic artery and covered with a pleural layer isolating them from the rest of the parenchyma. The diagnosis of these malformations is based increasingly on obstetrical ultrasonography. The purpose of this study was to specify the prenatal features of these malformations and define the diagnostic approach and therapeutic strategy.