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Benign müllerian papilloma of the female reproductive tract is a rare childhood tumor that can easily be mistaken by those unfamiliar with the entity for botryoid rhabdomyosarcoma. Ultrastructural findings have been mentioned only in two individual case reports, and these both were issued many years ago. The aim of this update is to familiarize the reader(More)
To assess the diagnostic potential of perivascular elastic fiber detection as an indicator of ependymoma, the authors performed ultrastructural studies on a large series of pediatric brain tumors. Elastic fibers were demonstrated by electron microscopy in 38 of 50 (76%) ependymomas, 2 of 25 (8%) choroid plexus tumors, 0 of 100 (0%) medulloblastomas, and 0(More)