The following are the most important diseases or complications that may be contributed to by polymyositis (inflammatory disease of the muscles):
Respiratory system (J00-J99)
- Aspiration pneumonia (pneumonia caused by inhalation of foreign substances (often stomach contents)) – due to weakness of the esophageal muscles (muscles of the esophagus).
- Pulmonary fibrosis (connective tissue remodeling of the lungs).
Cardiovascular system (I00-I99)
- Heart failure (cardiac insufficiency)
