Abstract
A hemorrhagic aortopulmonary artery sheath (HAPS) is an infrequent and critical complication of aortic dissection (AD), which is caused by a hematoma extending through the ruptured aortic wall into the aortopulmonary artery sheath. The adventitial hematoma might narrow or even occlude the lumen of the pulmonary arteries and extend into the pulmonary interstitium and alveoli. The prompt and accurate recognition of HAPS on computed tomography (CT) is crucial and might assist in the diagnosis of unidentifiable AD. HAPS was manifested as high attenuation areas surrounded the pulmonary arteries without enhancement on CT; even thickened bronchovascular sheath and ground-glass consolidations surrounded bronchovascular distribution, which might be associated with the prognosis. Aggressive and effective surgical treatment is the primary determinant of short-term survival.
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