Erratum: Choroid plexus carcinoma: Prenatal characterization by 3-dimensional sonography and magnetic resonance imaging, perinatal management, and natural history (Journal of Ultrasound in Medicine (2012) 31 (337-339))

Papillomas of the choroid plexus are rare neoplasms of neuroectodermal origin. They represent less than 5% of all central nervous system tumors in pediatric patients, with 10% to 20% of them occurring during the first year of life.1 Choroid plexus carcinomas, which are even rarer, derive from choroid plexus epithelium and are characterized by papillary and intraventricular growth. As for their site of origin, 50% are located in the lateral ventricles; 40% arise in the fourth ventricle; 5% originate in the third ventricle; and the remaining 5% are multifocal. Choroid plexus carcinomas are often associated with secondary hydrocephalus and increased intracranial pressure due to both obstruction of major foramina and overproduction of cerebrospinal fluid.2 These tumors represent exceedingly rare brain malignant neoplasms, and a database of all cases reported in the pediatric literature up to the year 2004 describes 347 cases.3 However, to the best of our knowledge, such a tumor was described only 3 times in a fetus.4,5 We report the second prenatal diagnosis of choroid plexus carcinoma in a 33-week fetus, focusing on the imaging features of the tumor, which was assessed by 2-dimensional (2D) and 3-dimensional (3D) sonography and magnetic resonance imaging (MRI), and reporting its unfortunately limited perinatal management and course.