Yuzawa M, Kawamura A, Matsui M
Department of Ophthalmology, Nihon University School of Medicine, Tokyo, Japan.
Acta Ophthalmol (Copenh). 1994 Feb;72(1):128-33. doi: 10.1111/j.1755-3768.1994.tb02753.x.
The placoid lesions of acute posterior multifocal placoid pigment epitheliopathy consist of two distinct areas: a light yellow area surrounding a dark yellow center. On two occasions, the authors compared indocyanine green video angiographic with fluorescein angiographic findings in a typical case of acute posterior multifocal placoid pigment epitheliopathy. In the acute stage, the multiple placoid lesions observed in the early phase of indocyanine green video-angiography showed hypofluorescent lesions corresponding to those seen with fluorescein angiography which blocked choroidal vessels. Some fluorescent intermediate sized choroidal vessels, which traversed the hypofluorescent areas, were dark due to a slight degree of blocked fluorescence. On both indocyanine green video and fluorescein angiography, hypofluorescent lesions were almost the same size as the light yellow area and the dark yellow center of a placoid lesion. A hypofluorescent lesion, seen on fluorescein angiography, obscured a retinal vessel. When the placoid lesions had disappeared, fewer hypofluorescent lesions, corresponding to some of the hypofluorescent lesions originally observed, were seen in the early phase of indocyanine green video angiography. They were also smaller in size. These hypofluorescent lesions decreased in size and some had completely disappeared in the late phase. No hypofluorescent lesions were seen in the early phase of fluorescein angiography. Findings in the acute stage suggest that the hypofluorescence observed in the early phase of indocyanine green video and fluorescein angiography is mainly blockage due to a light yellow area of placoid. When the placoid lesion disappeared, filling delays, which were detectable on only indocyanine green video angiography, persisted in the choriocapillaris.
围绕深黄色中心的浅黄色区域。作者曾两次在一例典型的急性后极部多灶性鳞状色素上皮病变中比较吲哚青绿视频血管造影与荧光素血管造影的结果。在急性期，吲哚青绿视频血管造影早期观察到的多个鳞状损害显示低荧光损害，与荧光素血管造影中所见的阻塞脉络膜血管的损害相对应。一些穿过低荧光区域的中等大小的脉络膜荧光血管因轻微的荧光阻塞而变暗。在吲哚青绿视频血管造影和荧光素血管造影上，低荧光损害的大小几乎与鳞状损害的浅黄色区域和深黄色中心相同。荧光素血管造影上所见的低荧光损害使一条视网膜血管模糊不清。当鳞状损害消失后，在吲哚青绿视频血管造影早期可见到较少的低荧光损害，与最初观察到的一些低荧光损害相对应。它们的大小也较小。这些低荧光损害在后期大小减小，有些已完全消失。荧光素血管造影早期未见低荧光损害。急性期的结果表明，吲哚青绿视频血管造影和荧光素血管造影早期观察到的低荧光主要是由于鳞状损害的浅黄色区域造成的阻塞。当鳞状损害消失后，仅在吲哚青绿视频血管造影上可检测到的脉络膜毛细血管充盈延迟仍然存在。
