Mycoplasmal pneumonia is also known as walking pneumonia. It is a mild form of pneumonia that can be easily overlooked because its symptoms are more subtle than those of traditional pneumonia. It is also sometimes referred to as atypical pneumonia because it differs from the typical bacterial or viral forms of pneumonia. Other synonyms for mycoplasmal pneumonia include primary atypical pneumonia, Eaton agent pneumonia, and mycoplasma pneumonia. While the severity of mycoplasmal pneumonia varies, it is still important to seek medical attention if any respiratory symptoms persist for an extended period of time.