Neonatal ascites due to lysosomal storage disease.

The clinical and radiographic features of four newborns with lysosomal storage disease (LSD) in whom the dominant presenting clinical feature was ascites are presented. The diseases included infantile Gaucher disease, GM I gangliosidosis, infantile sialidosis, and Salla disease. Abdominal distention due to ascites and hepatosplenomegaly, and hypoplastic lungs were seen in all four infants. In the infant with Gaucher disease, the ribs and long bones were markedly thinned. Varying degrees of coarsening of the trabecular pattern of the bones and thinning of the cortex, and a lack of modeling were seen in all patients. Metaphyseal irregularity was noted in the patients with sialidosis and Salla disease. These skeletal radiographic findings may alert the radiologist to the cause for ascites in these patients, which is obscure. In all four patients, there was a history of perinatal death due to the same disease in a sibling; ascites was present in three of the siblings. The diagnosis was missed at autopsy in each of these siblings, underlining the lack of awareness of LSD as a cause for neonatal ascites.