New morphological classification of congenital quadricuspid aortic valve and its histopathologic features

作者：Cheng Ching Li^*; Chang Hsiao Huang^*; Wang Wei Chen; Huang Pei Jung; Lin Shan Yang^*

来源：Cardiovascular Pathology, 2018, 35: 8-11.

DOI：10.1016/j.carpath.2018.03.005

• Quadricuspicl aortic valve (QAV)
• Aortic regurgitation (AR)
• Morphological classification

We report a 52-year-old male patient who had a quaclricuspid aortic valve (QAV) associated with aortic regurgitation (AR) and left ventricular hypertrophy (LVH). A new accessory cusp (ACC) with maximum thickness than other cusps was located between right coronary cusp (RCC) and left coronary cusp (LCC). The histopathological features revealed markedly thickened and distorted cusp architecture with fibrosis and or myxomatous degeneration in both non-coronary cusp (NCC) and ACC Two equal sizes for larger cusps (RCC and NCC) and two equal sizes for smaller cusps (LCC and ACC) were obtained This QAV belonged to type C QAV of Hurwitz's classification, but also suggested as a modified type Ill ofJagannath's classification or a new type V of Nakamctra's classification by locating ACC between RCC and LCC.

• 出版日期2018-8