Bennani-Smirès C, Benjelloun A, Dadi-Benmoussa F, Hamdouch M, Zeghari H, Zouaoui A
Service de Radiologie, Hôpital d'Enfants, CHU Ibn Rochd, Casablanca, Maroc.
J Radiol. 1998 Sep;79(9):861-4.
Discoid meniscus is an uncommon dysplasia generally affecting the lateral meniscus. Its congenital or acquired origin remains a question of debate. We report 5 cases or lateral discoid meniscus in 4 girls and 1 boy, aged from 6 to 11 years. The main clinical signs were snapping knee and pain. The discoid meniscus appeared in MRI as an abnormally large meniscus extending into the joint space. It appeared as a central band giving increased signal in 3 out of 5 cases. The significance of this probably trauma-induced image was uncertain. Surgery confirmed MRI findings in 4 cases in which total resection of the meniscus was performed. No operation was performed in the fifth case.
盘状半月板是一种罕见的发育异常，通常累及外侧半月板。其先天性或后天性起源仍是一个有争议的问题。我们报告了5例外侧盘状半月板病例，其中4例为女孩，1例为男孩，年龄在6至11岁之间。主要临床症状为膝关节弹响和疼痛。盘状半月板在磁共振成像（MRI）上表现为异常大的半月板延伸至关节间隙。在5例中有3例表现为中央带信号增强。这种可能由创伤引起的影像表现的意义尚不确定。手术证实了4例的MRI检查结果，这4例均进行了半月板全切除术。第5例未进行手术。
