Аннотация
Diagnosis of a solitary fibrous tumor of the pleura is difficult due to the lack of specific clinical symptoms and radiological manifestations. The article describes a clinical case of diagnosing a solitary fibrous tumor of the pleura, taking into account its morphological and immunohistochemical features. If the named tumor is suspected, early surgical removal of the neoplasm with the determination of its morphology and the choice of further treatment tactics are indicated, because. over time, a conditionally benign tumor can become malignant and metastasize.