Mycotic Aortic Aneurysm: A Rare Etiology of Septic Shock

Mycotic aneurysm of the aorta is a rare disease with a high mortality rate due to its likelihood of aneurysmal rupture. This syndrome is predominantly seen in patients over age 65 with the most common presenting symptoms being fever and back pain. Our case illustrates a mycotic aneurysm of the aorta presenting in an elderly female with vague abdominal pain, flank pain, and generalized weakness. We review the investigative approach, diagnostic modalities, and treatment options in patient management. This case emphasizes the need for a high index of suspicion of mycotic aneurysms of the aorta in critically ill elderly patients as early antibiotic therapy can be crucial for source control.