A case presentation of intracardiac thrombus formation and development of massive pulmonary embolism following brucella infection

Brucella infection can lead to vascular complications such as intracardiacthrombus. In this case, we presented a case of acute pulmonaryembolism due to right atrial thrombus secondary to brucella infection.A 74-year-old male patient presented with complaints of shortnessof breath and palpitations. He exhibited hypotension and tachycardiain vital signs, along with hypoxia and hypocarbia in laboratoryparameters. The patient had a diagnosis of brucella and under activemedical treatment. Transthoracic echocardiography revealed aworm-like hyperechoic intracavitary mass in the right atrium whichhas rough contours and synchronously move with adjacent heartwall during heart cyles. The right atrium and right ventricle weredilated. Computed tomography showed a hypodense lesion consistentwith embolism in the left main pulmonary artery. Due to hemodynamicinstability and the development of shock, the patientreceived thrombolytic therapy. Following stabilization of vital signs,the patient was discharged smoothly on vitamin K antagonist (VKA)therapy.