title: [Ultrastructural studies of metastases of anaplastic tumors and non-Hodgkin's lymphoma as a contribution to differential diagnosis].
abstract: Difficulties in morphologic classification frequently arise in distinguishing between non-Hodgkin lymphoma and lymph node metastases from anaplastic tumors, mainly germ cell tumors and small cell carcinomas. The present study explores the role of ultrastructural features as a supplement to light microscopy in 14 cases of metastatic disease and 6 non-Hodgkin lymphomas. It appeared that the ultrastructure of the nucleoli, the arrangement of the nuclear bodies and the shape of nuclear invaginations are ultrastructural cell characteristics, which may contribute to the definitive diagnosis.
mesh_terms: D000230:Adenocarcinoma / Q000556:secondary / Q000648:ultrastructure; D018288:Carcinoma, Small Cell / Q000556:secondary / Q000648:ultrastructure; D003937:Diagnosis, Differential; D006801:Humans; D008198:Lymph Nodes / Q000648:ultrastructure; D008207:Lymphatic Metastasis / Q000175:diagnosis* / Q000648:ultrastructure; D008228:Lymphoma, Non-Hodgkin / Q000175:diagnosis* / Q000648:ultrastructure; D009373:Neoplasms, Germ Cell and Embryonal / Q000556:secondary / Q000648:ultrastructure; D009447:Neuroblastoma / Q000556:secondary / Q000648:ultrastructure
vernacular_title: Ultrastrukturelle Untersuchungen an Metastasen anaplastischer Tumoren und von Non-Hodgkin-Lymphomen als Beitrag zur Differentialdiagnose.