title: [Diagnostic difficulties in the initial stage of non-Hodgkin malignant lymphoma in a 12-year-old girl].
mesh_terms: D002648:Child; D003951:Diagnostic Errors; D005260:Female; D006044:Goiter, Nodular / Q000175:diagnosis; D006258:Head and Neck Neoplasms / Q000175:diagnosis*; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology; D008223:Lymphoma / Q000175:diagnosis*; D009367:Neoplasm Staging
vernacular_title: Trudności diagnostyczne we wstepnym okresie nieziarniczego chło9niaka złośliwego u 12-letniej dziewczynki.