Bilateral Spontaneous Recurrent Hemothorax As a Complication of Primary Angiosarcoma of the Pleura

RELEVANCE Pleural angiosarcoma is a rare type of malignant tumors. The diagnosis of primary pleural angiosarcoma is extremely difficult and is based on the results of immunohistochemical examination of tumor biopsies. The etiology and treatment methods of this disease have been poorly studied. AIM Demonstration of a rare case of pleural angiosarcoma as a cause of bilateral spontaneous hemothorax. CONCLUSION Primary epithelioid pleural angiosarcoma is a rare tumor with a high degree of malignancy and an unfavorable prognosis, which does not have pathognomonic symptoms. Spontaneous hemothorax may be the only primary clinical manifestation of the disease. Diagnostic thoracoscopy with pleural biopsy performed at an early stage to clarify the cause of hemothorax allows morphological verification of the tumor structure, which can affect the outcome of the disease in case of timely treatment.