An unusual case of hemoptysis: Pulmonary artery pseudoaneurysm secondary to a lung abscess

Hiroyuki Tanaka; Junji Uraki; Motoaki Tanigawa; Yuki Nakanishi; Hirokazu Toyoshima; Shigetoshi Sakabe

doi:10.1016/j.rmcr.2021.101508

An unusual case of hemoptysis: Pulmonary artery pseudoaneurysm secondary to a lung abscess

Respir Med Case Rep. 2021 Sep 3:34:101508. doi: 10.1016/j.rmcr.2021.101508. eCollection 2021.

Authors

Hiroyuki Tanaka¹, Junji Uraki², Motoaki Tanigawa³, Yuki Nakanishi¹, Hirokazu Toyoshima¹, Shigetoshi Sakabe¹

Affiliations

¹ Department of Infectious Diseases, Japanese Red Cross Ise Hospital, 471-2, Funae, Ise, Mie, 516-8512, Japan.
² Department of Radiology, Japanese Red Cross Ise Hospital, 471-2, Funae, Ise, Mie, 516-8512, Japan.
³ Department of Respiratory Medicine, Japanese Red Cross Ise Hospital, 471-2, Funae, Ise, Mie, 516-8512, Japan.

Abstract

Massive hemoptysis may originate from injured pulmonary arteries, such as from pulmonary artery pseudoaneurysms (PAPs). A 93-year-old man, diagnosed with pneumonia, was hospitalized; he later developed a lung abscess (controlled with intravenous antibiotics). On post-hospitalization day 29, he suddenly developed hemoptysis. Multi-detector computed tomography angiography (MDCTA) showed an enhanced nodule, diagnosed as a PAP, inside the lung abscess. The hemoptysis resolved, without recurrence, following transcatheter arterial embolization (TAE) of the PAP and its feeding arteries. PAPs should be considered in patients with lung abscesses and delayed massive hemoptysis. In these patients, MDCTA and TAE are effective diagnostic and treatment modalities.

Keywords: Hemoptysis; Lung abscess; Multi-detector computed tomography angiography; Pulmonary artery pseudoaneurysm; Transcatheter arterial embolization.

Publication types

Case Reports