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[Extramedullary anaplastic plasmacytoma].

Abstract
A case of extramedullary plasmacytoma of the maxillary sinus, locally aggressive, in a 65 years old man is presented. Clinical diagnosis of adenocarcinoma was suspected but the pathological study showed an anaplastic morphology, with little plasmacytic differentiation and lack of stain with cytokeratins and epithelial membrane antigen (EMA), immunohistochemical marker of plasmatic cells, among others. Definitive diagnosis was based on light chain restriction and lack of multiple myeloma.
AuthorsM Veiga González, M F Fresno Forcelledo, M J Pérez del Río, B Madrigal Rubiales, A Vara Castrodeza, A Herrero Zapatero
JournalAnales de medicina interna (Madrid, Spain : 1984) (An Med Interna) Vol. 15 Issue 5 Pg. 262-4 (May 1998) ISSN: 0212-7199 [Print] Spain
Vernacular TitlePlasmocitoma anaplásico extramedular.
PMID9629774 (Publication Type: Case Reports, English Abstract, Journal Article)
Chemical References
  • Mucin-1
Topics
  • Adenocarcinoma (pathology)
  • Aged
  • Diagnosis, Differential
  • Humans
  • Immunohistochemistry
  • Male
  • Maxillary Sinus Neoplasms (metabolism, pathology)
  • Mucin-1 (metabolism)
  • Plasmacytoma (metabolism, pathology)

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