Bona fide primary merkel cell carcinoma of an intraparotid lymph node in a HIV-positive patient

Francesco Ottaviani, Pasquale Capaccio, Federico Villani, Matteo Banderali, Giancarlo Pruneri, Marco Klinger, Lorenzo Pignataro

Research output: Contribution to journalArticle

Abstract

Merkel cell carcinomas are uncommon malignant tumors thought to originate from the neuroendocrine cells of the skin that mainly affects sun-exposed body areas, particularly the head and neck. In approximately 10% of cases, they present with localized lymphadenopathy without any clinical evidence or history of a primary lesion, but a truly primary lymph node Merkel cell carcinoma may occur, possibly originating from epithelial inclusions or an anomalous neuroendocrine differentiation of hematopoietic stem cells. It has been observed that Merkel cell carcinoma is more likely to affect patients whose immune status is impaired as a result of iatrogenic immunosuppression, human immunodeficiency virus infection, or hematological malignancies. This study reports the case of a bona fide primary Merkel cell carcinoma arising in an intraparotid lymph node of a patient infected by HIV that had a particularly unfavorable clinical course.

Original languageEnglish
Pages (from-to)406-408
Number of pages3
JournalInternational Journal of Surgical Pathology
Volume18
Issue number5
DOIs
Publication statusPublished - Oct 2010

Keywords

  • HIV infection
  • immunohistochemistry
  • Merkel cell carcinoma
  • parotid lymph node
  • parotid neoplasms

ASJC Scopus subject areas

  • Anatomy
  • Pathology and Forensic Medicine
  • Surgery

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