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September "Sonography case of the day".

AJR:176, May 2001 September “Sonography Case of the Day” We were surprised to see that the diagnosis for sonography case 3 from the “Sonography Case of the Day” [1] was agenesis of the corpus callosum. Each of the images reveals that the corpus callosum is present. The case is described as having an elevated third ventricle and horizontal frontal horns. However, the images shown clearly depict the cavum septum pellucidum (fig. 3A) and the corpus callosum (fig. 3B, page 901). In figure 3B on page 897, the septal leaflets are not visualized and could be partially absent (because they are present in fig. 3A). We believe it is important to bring attention to this error in diagnosis so that other readers are not misled. Deborah Levine Beth Israel Deaconess Medical Center Boston, MA 02215 Richard Robertson Children’s Hospital Boston, MA 02115