You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is A child presented with the projectile, forcible, non-bilious vomiting. The most likely diagnosis is and explain in detail?
Pyloric stenosis clinical presentation Infant is normal at bih, symptomatic between ages of 3-6 weeks Infants with HPS typically present with projectile nonbilious vomiting Visible gastric peristalsis may be seen as a wave of contraction from the left upper quadrant to the epigastrium The infants usually feed vigorously between episodes of vomiting Typical electrolyte abnormalities Hypochloremia Hypokalemia Metabolic acidosis with paradoxical aciduria Ref: Sabiston 20th edition Pgno : 1869