What is the best description of pyloric stenosis?

A) Dilation of the pylorus
B) Hypertrophy of the pyloric muscle
C) Hypotonicity of the pyloric muscle
D) Reduction of tone in the pyloric muscle

Pyloric Stenosis

A condition in infants where the passage from the stomach to the intestine is narrowed, leading to vomiting and difficulty feeding.

Hypertrophy

An increase in the size of an organ or tissue through the enlargement of its cells, often in response to stress or increased demand.

Hypotonicity

A condition where there is decreased muscle tone, making muscles feel flaccid and leading to difficulties in maintaining posture or movement.