Pulmonary embolism occurs when an embolus breaks away from a thrombus and blocks the pulmonary artery, generating symptoms that include shortness of breath, chest pain, fainting and haemoptysis.

Complexity of Serpiginous Right Atrium Thrombus Management in Acute Pulmonary Embolism Patient: A Clinical Case Report. World Journal of Cardiovascular Diseases, 15, 135-141. doi: ...