A Rare Coexistence of Pneumonia and Pulmonary Infarct with a Normal D-dimer Acute Pulmonary Thromboembolism: A Case Report

Case DesCriptionA 40-year-old male person who is a mechanical worker in industry setup came to the emergency room on 26 th April 2023 with complaints of high-grade fever since afternoon, acute left lower chest and upper abdominal pain since morning, and shortness of breath since 1 day.He had blood in his sputum in the form of clots for 1 day and cough for 1 week.His fever has been high grade since afternoon, continuous, not associated with chills, and no headache.The chest pain is catchy type, severe, and increases on taking a breath, moving, and coughing.His shortness of breath was since 1 day, sudden in onset, modified Medical Research Council Dyspnea Scale grade 4, persistent, not relieved by anything.His cough was since 1 week initially nonproductive, later associated with sputum with blood clots looking like red currant jelly, around 100 mL/day, and was not foul smelling in nature (Fig. 1).He denied any history of travel, trauma, palpitations, giddiness, or sweating.In the past history, there was no diabetes, hypertension, tuberculosis (TB), pneumonia, or coronavirus disease of 2019