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Right heart catheterisation showed severe pulmonary hypertension (PH). A diagnosis of giant high-pressure pulmonary arterial aneurysm (PAA) secondary to PH, induced by COPD, and chronic pulmonary embolism was made. Despite aggressive medical management, she passed away on comfort care. Giant high-pressure PAAs are rarely reported. This is a unique case that demonstrates this very rare condition in a living patient. The management of giant PAA is controversial. Experts recommend medical management or aneurysmectomy for sizes of &gt;55\u201360\u2009mm. Death could have been prevented if our patient was screened earlier and received appropriate medical care.<\/jats:p>","DOI":"10.1136\/bcr-2021-245673","type":"journal-article","created":{"date-parts":[[2022,3,4]],"date-time":"2022-03-04T11:11:40Z","timestamp":1646392300000},"page":"e245673","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":1,"title":["Giant high-pressure pulmonary artery aneurysm (PAA) in a patient with COPD and chronic pulmonary embolism (PE)"],"prefix":"10.1136","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5499-2533","authenticated-orcid":false,"given":"Hee Kong","family":"Fong","sequence":"first","affiliation":[{"name":"Department of Cardiovascular Medicine, UC Davis Medical Center, Sacramento, California, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Amber","family":"Pinson","sequence":"additional","affiliation":[{"name":"University of Missouri Health Care, Columbia, 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