Related Experiment Video
Updated: Jun 20, 2026

Modified Octopus Technique for Thoracoabdominal Aortic Aneurysm
Published on: August 1, 2025
A rare case of asymptomatic inferior phrenic artery aneurysm treated with endovascular therapy
Tsutomu Doita1,2, Takashi Nakamura1,3, Taro Yamasumi1,2
1Department of Vascular Surgery, Japan Organization of Occupational Health and Safety, Osaka Rosai Hospital, Sakai, Osaka, Japan.
Abstract:
Inferior phrenic artery aneurysms (IPAAs) are extremely rare, with only 17 reported cases. Most were diagnosed following ruptured, and developed secondary to trauma, surgery, or pancreatitis. We report a case of an asymptomatic unruptured IPAA treated endovascularly. A 73-year-old man without a history of laparotomy, trauma, or pancreatitis had a 6.8-mm saccular IPAA identified incidentally on computed tomography angiography during a comprehensive health checkup. Coil embolization was successfully performed without complications. Given the rarity of IPAAs, a gold standard therapy has not been established. However, endovascular therapy appears to be a safe and effective treatment option.
Related Concept Videos
Aneurysm III: Interprofessional Care
Aneurysm IV: Nursing Management
Esophageal Varices-II: Clinical Features and Management
In the initial assessment, a thorough review of the patient's medical history is vital to identify risk factors such as liver disease, alcohol abuse, or...
Aneurysm II: Clinical Manifestations and Diagnostic Studies