Diagnostic of Early Onset Polycystic Kidney Disease in Neonates

Area of Science:

• Pediatric Nephrology
• Medical Genetics
• Fetal Medicine

Background:

• Polycystic kidney disease (PKD), encompassing autosomal dominant (ADPKD) and autosomal recessive (ARPKD) forms, is a significant cause of childhood mortality.
• Prenatal diagnosis and early intervention are crucial for managing severe pediatric kidney diseases.
• This case highlights a rare presentation of polycystic kidney disease in a preterm infant.

Observation:

• A 32-week preterm infant presented with presumptive right polycystic kidney diagnosed prenatally.
• Clinical examination revealed significant abdominal distention attributed to the enlarged polycystic kidney.
• The neonate underwent successful right nephrectomy at 5 days of age.

Findings:

• Histopathology confirmed dilated cysts lined by cuboidal or flattened epithelium.
• Islets of remnant kidney parenchyma were observed, separated by edematous stroma.
• Immunohistochemistry revealed incomplete blood arcades, suggesting potential vascular anomalies within the affected kidney.

Implications:

• Early surgical intervention, such as nephrectomy, can lead to favorable postoperative outcomes in severe cases of infantile polycystic kidney disease.
• Detailed histopathological and immunohistochemical analysis provides insights into the pathogenesis of polycystic kidney disease.
• Genetic testing is recommended for comprehensive patient management and family counseling regarding PKD inheritance patterns.