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 In CHPS which of the following is seen and explain in detail?
In CHPS, non-bilious vomiting, metabolic alkalosis and aciduria is seen. The morphological features are due to hyperophy and hyperplasia of the circular muscle with some contribution by the longitudinal muscle. The hyperophied muscle lengthens and narrows the pyloric channel. Radiographically, there is the lengthening of the pyloric channel with smooth symmetrical narrowing. The hyperophied muscle bulges retrogradely into the antrum, creating a 'shoulder'. In infants, HPS ultrasound is the technique of choice in the diagnosis of HPS.