ABSTRACT
Hemoptysis is one of the classic symptoms in clinical medicine. Osier and other famous physicians of the past have been interested in it because of its clinical importance; it has served as a sign of tuberculosis and other lung infections. Until recently, it was a common reason for patients to be seen in chest clinics. With the decline in two of the major etiolo gies of hemoptysis, tuberculosis (TB) and bronchiectasis, hemoptysis is a less common clinical problem. However, it also presents new challenges because the etiological spec trum is now more diverse than in the past, and advances in medicine, such as transplanta tion and chemotherapy, are changing many of the illnesses with which it is associated.
