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Memorias del Instituto de Investigaciones en Ciencias de la Salud

On-line version ISSN 1812-9528


RUOTI COSP, M et al. Infradiaphragmatic pulmonary sequestration combined with cystic adenomatoid malformation. Mem. Inst. Investig. Cienc. Salud [online]. 2009, vol.7, n.1, pp.54-60. ISSN 1812-9528.

The pulmonary sequestration (SP) is rare and characterized by the presence of pulmonary tissue not joined to the rest of the normal lung. It could be intralobar or more commonly extralobar. The definite diagnosis of a fetal upper abdominal mass can be made only after birth and following a series of ultrasonographic or image exams. We present the clinical case of a primipara of 34 years old. A 17th week ultrasound showed a multicystic image of 15 mm diameter in the upper pole of the fetal left kidney. The fetal cariotype after amniocentesis was 46 XX. The 20th week ultrasound showed the absence of other structure alterations. The 33th week ultrasound showed a multicystic image of 20mm diameter separated from the kidney. A diagnosis of left adrenal neuroblastoma is suggested. The labor occurred at 39th week with a newborn of 3,160 grams, Apgar of 9/10 without complications. The neonatal ultrasound revealed a mixed tumor of liquid predominance of 3 cm diameter above but independent from the left kidney. A magnetic resonance imaging showed a left adrenal mass compatible with a neuroblastoma. At the 36th day of life, a left subcostal laparotomy showed a normal left kidney and left suprarenal glandules compressed by a semisolid cystic tumor of 3 x 2.5 cm adhered to diaphragm. A complete extirpation was carried out and the anatomopathological diagnosis showed an infradiaphragmatic pulmonary sequestration combined with a type II cystic adenomatoid malformation. Abdominal tumors represent 5 % of the abnormalities detected in prenatal ultrasound. The differential diagnosis includes neuroblastoma, adrenal hemorrhage, kidney tumors, teratomas and intraabdominal pulmonary sequestration (IPS). The IPS constitutes 2 to 5 % of the pulmonary sequestration and has a high frequency of coexistence with type II cystic adenomatoid malformation.

Keywords : Infradiaphragmatic pulmonary sequestration; Congenital cystic adenomatoid malformation; Fetal abdominal mass.

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