Hydrocele, or as the people say - dropsy of the testicle in children - is a disease in which there is an excessive accumulation of fluid in the scrotum, between the membranes of the testicle.
Pyloric stenosis is a narrowing of the pyloric section of the stomach, resulting in an obstacle to the movement of food from the stomach into the intestines.
A diaphragmatic hernia is a congenital anomaly characterized by the movement of abdominal organs (eg, loops of the intestine, liver, stomach, spleen) into the chest through a defect in the diaphragm.