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Updated: Jul 16, 2026

Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
Published on: May 21, 2017
Aortic root subadventitial hematoma.
Shinji Miyamoto1, Tetsuo Hadama, Eriko Iwata
1Department of Cardiovascular Surgery, Faculty of Medicine, Oita University, Hasama-machi, Oita 879-5593, Japan. smiyamot@med.oita-u.ac.jp
A rare case of aortic valve regurgitation in a 51-year-old woman was linked to an unusual intramural hematoma (IMH) of the aorta. This finding suggests a potential new origin for aortic intramural hematomas.
Area of Science:
- Cardiovascular Medicine
- Pathology
- Surgical Case Reports
Background:
- Aortic valve regurgitation can present with atypical symptoms like nocturnal chest tightness.
- Intramural hematoma (IMH) of the aorta is a rare condition with unclear etiology.
Observation:
- A 51-year-old woman presented with chest tightness and was diagnosed with aortic valve regurgitation.
- Intraoperative findings revealed turbid pericardial fluid and a nipple-shaped protrusion on the noncoronary sinus of Valsalva.
Findings:
- Histological examination identified the lesion as an organized hematoma within the aortic wall.
- Adjacent dilated venules suggested a possible co-existing intramural hemangioma.
Implications:
- This case presents an unusual manifestation possibly related to aortic intramural hematoma (IMH).
- The findings may offer insights into the potential origins and pathogenesis of IMH.
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