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LB13.0 Congenital hypertrophic pyloric stenosis

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

A not uncommon congenital malformation of the stomach of unknown cause in which there is hypertrophy and hyperplasia of the circular muscle of the pylorus. Symptoms of gastric outlet obstruction usually appear between the third and sixth weeks of life. The anomaly is manifested by intermittent vomiting (which increases in frequency and becomes projectile), regurgitation, weight loss, dehydration, electrolyte imbalance, sometimes a small palpable pyloric mass, and visible peristaltic contractions across the epigastrium; there may also be jaundice. Some cases appear to be familial (possibly of autosomal dominant inheritance).

synonyms

• Congenital hypertrophic pyloric stenosis
• achalasia of the pylorus
• congenital hypertrophy of the pylorus
• infantile hypertrophy of the pylorus
• infantile constriction of the pylorus
• congenital stenosis of the pylorus
• congenital constriction of the pylorus
• congenital stricture of the pylorus
• infantile hypertrophic pyloric stenosis
• infantile stenosis of the pylorus
• infantile stricture of the pylorus
• Congenital or infantile constriction of pylorus
• infantile pyloric obstruction
• infantile pyloric hypertrophy
• pylorus achalasia
• pyloric constriction
• infantile pyloric stricture
• infantile pyloric stenosis
• congenital spasm of pylorus
• congenital pylorospasm
• congenital pyloric stricture
• congenital pyloric spasm
• Congenital or infantile spasm of pylorus
• congenital or infantile obstruction of pylorus
• congenital pyloric stenosis

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