Related Experiment Videos
Atypical pyloric stenosis in an infant with familial hyperlipidemia
C Veyrac1, A Couture, A F Bongrand
1Service de Radiologie Pédiatrique, Hôpital Arnaud-de-Villeneuve, F-34295 Montpellier Cedex 5, France.
Insights
This case highlights an infant with pyloric stenosis and unusual ultrasound findings. Dietary fat restriction led to full recovery, demonstrating a successful medical approach for this rare presentation.
Area of Science:
- Pediatric Surgery
- Gastroenterology
- Medical Imaging
Background:
- Pyloric stenosis is a common cause of vomiting in infants.
- Typical diagnosis involves ultrasound showing a thickened, elongated pyloric muscle.
- Familial hyperchylomicronemia is a rare genetic disorder affecting lipid metabolism.
Observation:
- A 1-month-old infant presented with symptoms suggestive of pyloric stenosis.
- Ultrasound revealed intense hyperechogenicity of the thickened pyloric muscle, an atypical finding.
- The infant also exhibited cholecystitis and pancreatitis, with familial hyperchylomicronemia detected.
Findings:
- Surgical exploration confirmed fatty infiltration, necrosis, and inflammation of the pyloric muscle layer.
- Histopathology revealed significant lipid deposition within the pyloric muscle.
- The co-occurrence of pyloric stenosis, cholecystitis, pancreatitis, and familial hyperchylomicronemia is highly unusual.
Implications:
- This case demonstrates that atypical echogenicity in pyloric stenosis may indicate underlying metabolic disorders like familial hyperchylomicronemia.
- Successful medical management with dietary fat restriction suggests a potential non-surgical treatment pathway for specific cases of pyloric stenosis.
- The findings emphasize the importance of considering metabolic investigations in infants presenting with seemingly typical surgical conditions but unusual imaging characteristics.
Abstract:
A 1-month-old infant presented with a typical pattern of pyloric stenosis but US revealed an intense hyperechogenicity of the thickened pyloric muscle. Cholecystitis and pancreatitis were also present in this child. Familial hyperchylomicronemia was detected. Surgery confirmed the fatty infiltration of the pyloric muscular layer, which was necrotic and inflammatory. Medical management with restriction of fat in the diet led to a complete recovery. This is an exceptional case of pyloric stenosis where the particular echographic appearance of the pyloric muscle led to successful to medical treatment.