{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T10:07:34Z","timestamp":1785406054187,"version":"3.56.0"},"reference-count":13,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2026,7,15]],"date-time":"2026-07-15T00:00:00Z","timestamp":1784073600000},"content-version":"vor","delay-in-days":14,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T00:00:00Z","timestamp":1782864000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Pathology International"],"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Marfan syndrome (MFS) is a hereditary connective tissue disorder characterized by cardiovascular and skeletal abnormalities. While cardiovascular pathology is well described, the microscopic features of peripheral vasculature remain poorly characterized. We report a case of perioperative pulmonary arterial rupture in a patient with\n                    <jats:italic>FBN1<\/jats:italic>\n                    \u2010related MFS. A 17\u2010year\u2010old woman underwent bullectomy for spontaneous pneumothorax. Although the procedure was initially uneventful, unexpected bleeding developed beneath the staple line immediately after reinflation for the post\u2010bullectomy air\u2010leak test, necessitating additional wedge resection. Histologically, a ruptured pulmonary arterial branch was identified adjacent to the staple line. Patchy foci of hyperacute vascular injury with hemostatic plugs were identified on the luminal surface, and the surrounding airspaces were filled with fresh blood. The affected arterial wall showed mucoid extracellular matrix accumulation and disorganization of smooth muscle bundles. Furthermore, the medial layer demonstrated an aberrant distribution of elastic fibers, deviating from the normal architecture of muscular arteries. These findings highlight previously underrecognized microscopic features of peripheral arterial involvement in\n                    <jats:italic>FBN1<\/jats:italic>\n                    \u2010related MFS, characterized by latent structural fragility associated with abnormal vascular patterning. Surgery\u2010associated hemodynamic changes, including perioperative reinflation for an air\u2010leak test, which would be tolerated under normal conditions, may precipitate vascular injury and rupture.\n                  <\/jats:p>","DOI":"10.1111\/pin.70153","type":"journal-article","created":{"date-parts":[[2026,7,16]],"date-time":"2026-07-16T06:05:50Z","timestamp":1784181950000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Latent Vasculopathy of a Peripheral Pulmonary Artery in\n                    <i>FBN1<\/i>\n                    \u2010Related Marfan Syndrome"],"prefix":"10.1111","volume":"76","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2943-764X","authenticated-orcid":false,"given":"Masato","family":"Aragaki","sequence":"first","affiliation":[{"name":"Department of Thoracic Surgery Hokkaido University Hospital Sapporo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3024-6776","authenticated-orcid":false,"given":"Noriyuki","family":"Otsuka","sequence":"additional","affiliation":[{"name":"Department of Surgical Pathology, School of Medicine Sapporo Medical University Sapporo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6220-8179","authenticated-orcid":false,"given":"Mitsuko","family":"Furuya","sequence":"additional","affiliation":[{"name":"Department of Pathology Sapporo City General Hospital Sapporo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9257-5623","authenticated-orcid":false,"given":"Hirokuni","family":"Yamazawa","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Faculty of Medicine and Graduate School of Medicine Hokkaido University Sapporo 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Hemoptysis in a Patient With Marfan's Syndrome","volume":"197","author":"Centeno J.","year":"2018","journal-title":"American Journal of Respiratory and Critical Care Medicine"}],"container-title":["Pathology 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