Definition: Pericolpitis, also known as pericarditis, is a medical condition that occurs when the lining of the heart's chambers (pericardium) becomes inflamed or irritated. This can lead to discomfort, pain, and swelling in the chest, neck, or back area, especially if it is not treated properly. Pericolpitis can be caused by various factors such as infections, inflammation from certain medications, stress, smoking, obesity, poor diet, and certain conditions like