Unusual Presentation of Infantile Hypertrophic Pyloric Stenosis in a Ten-week old Infant

Abstract

We report a case of infantile hypertrophic pyloric stenosis in a ten-week old, third-born girl. She presented with sudden onset of non-projectile vomiting of non-bilious material. The vomiting occurred consistently a few minutes after feeds. No peristaltic waves were seen in the abdomen. The typical olive-shaped mass was only felt under general anaesthesia despite repeated examinations. Definitive diagnosis was made with the aid of barium studies and confirmed intra-operatively. This case emphasizes the need for a high index of suspicion for infantile pyloric stenosis in a persistently vomiting infant irrespective of sex, birth order, presence or absence of projectile nature of vomiting, visible peristalsis or palpable abdominal mass.