👉 Intermalas, also known as interalomas or interalveolus, are a type of cystic fibrosis (CF) lung disease. They occur in the alveoli and can be caused by mutations in CFTR (the chloride channel protein). The cysts inside the alveoli are filled with fluid that is sometimes trapped in them, which causes symptoms such as shortness of breath, coughing, and chest pain. Intermalas also cause inflammation in the lungs,