An organ or tissue protruding through a muscle wall is called a?

An organ or tissue that is protruding through a muscle wall is referred to as a hernia. This occurs when there is a weakness or opening in the muscle wall, allowing an internal structure, such as part of the intestine or fat, to push through. Hernias are commonly seen in areas where the muscles are naturally weaker, such as the groin or abdomen. They can manifest as a noticeable bulge and may lead to symptoms like pain or discomfort, particularly when lifting objects or straining.

The other terms represent different medical conditions: a fistula is an abnormal connection between two body parts; an abscess is a collection of pus that forms due to infection; a lesion refers to any abnormal tissue change, including injuries or diseases. Each of these conditions involves distinct pathology and does not describe the specific phenomenon of protrusion through a muscle wall as a hernia does.