👉 The term "entapophysial" is a medical term that refers to the presence of a pocket or space between two muscles, typically in the neck region. This pocket can be either filled with fluid or solid material and may be associated with various symptoms such as neck stiffness, pain, or discomfort. In general, entapophysial conditions are often seen in people who have suffered an injury or surgery to one of their neck muscles, which can lead to a lack of blood flow to the affected