Klebsiella pneumoniae-induced mycotic aneurysm of the abdominal aorta complicated by bloody pleural effusion--a case report

A Fatal Case of Klebsiella pneumoniae Mycotic Aneurysm

Mycotic aneurysm is a serious clinical condition with significant morbidity and mortality. Staphylococcus aureus and Salmonella species are the most common causative pathogens. Klebsiella pneumoniae was rarely reported as a possible pathogen causing mycotic aneurysm; therefore, we describe a K. pneumoniae-related fatal bacteremia mycotic aneurysm in a patient in spite of appropriate antimicrobial agents and surgical management.

Hemorrhagic pleural effusion secondary to sarcoidosis: A brief review

Pleural effusion is considered to be a rare manifestation of pulmonary sarcoidosis, but hemorrhagic effusion secondary to it is a very uncommon clinical presentation. This case is reported due to the rare manifestation in pulmonary sarcoidosis presenting clinically as hemorrhagic pleural effusion.

Mycotic aneurysm caused by gas-forming serotype K5 Klebsiella pneumoniae

We describe the first documented case of mycotic aneurysm caused by gas-forming serotype K5, and rmpA and iuc positive Klebsiella pneumonia with a hypermucoviscosity phenotype in a diabetic patient. The patient received ceftriaxone for one month and underwent aorto-bi-iliac grafting and inferior mesenteric artery reimplantation and recovered well.

Non-aneurysmal infectious aortitis: a case report

Infectious aortitis is a rare clinical entity that is most often associated with an abdominal aortic aneurysm. There have been very few documented cases of aortitis in the setting of a normal-sized caliber aorta. We present a 67-year-old patient who presented to our Emergency Department with a history of recent fevers, fatigue, and abdominal pain. Based on an abdominal computed tomography scan, the patient was initially thought to have ruptured an abdominal aortic aneurysm of infectious etiology with extension into the left psoas muscle. Explorative laparotomy, however, revealed an infected abdominal aorta secondary to a retroperitoneal abscess with no evidence of aneurysm or pseudoaneurysm. The pathophysiology of the disease suggests that infectious aortitis and mycotic aneurysm represent extremes along a spectrum of the same disease. Establishing a diagnosis of aortic infection before the formation of an aneurysm or rupture is very difficult, but essential in preventing the devastating complications.