Motolese E, Esposti P, Patacchini E, Pannini S, D'Aniello B D
Boll Soc Ital Biol Sper. 1984 Jun 30;60(6):1245-51.
Authors describe the echographic characteristics A and B-scan of the disciform macular degeneration. They also examine the problems of an echographic differential diagnosis between the upper described pathological pattern and the melanoma of small dimensions growing from the posterior pole. With the B-scan, both pathological patterns show a zone of echoes which is of solid aspect, not so much raised from the retina. The only characteristic element is the choroideal excavation that we always have in the choroideal melanoma and never in the disciform macular degeneration. Even the A-scan is useful mostly if we reduce the amplification level we have a separation of the internal echoes better in the disciform macular degeneration than in the melanoma. Moreover in some cases when the pathological area is small, we cannot have an echographic differential diagnosis in order to recognize the lesion.
作者描述了盘状黄斑变性的超声特征（A 扫描和 B 扫描）。他们还探讨了上述病理模式与起源于后极部的小尺寸黑色素瘤之间进行超声鉴别诊断的问题。通过 B 扫描，两种病理模式均显示出一个回声区，其呈实性，从视网膜隆起程度不高。唯一具有特征性的要素是脉络膜凹陷，这在脉络膜黑色素瘤中总是存在，而在盘状黄斑变性中则从未出现。即便 A 扫描也很有用，主要是如果我们降低放大水平，在盘状黄斑变性中内部回声的分离比在黑色素瘤中更好。此外，在某些情况下，当病变区域较小时，我们无法通过超声鉴别诊断来识别病变。
