title: A malignant mediastinal tumor, unclassified, most consistent with thymoma in a 9-year-old girl.
authors.affiliation: Department of Pathology, Medical Faculty, Nijmegen, The Netherlands.
authors.forename: U J
authors.initials: UJ
authors.lastname: van Haelst
authors.forename: R
authors.initials: R
authors.lastname: Holland
mesh_terms: D002648:Child; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007124:Immunoenzyme Techniques; D007150:Immunohistochemistry; D008479:Mediastinal Neoplasms / Q000648:ultrastructure*; D008854:Microscopy, Electron; D013945:Thymoma / Q000648:ultrastructure*