Collision tumors with synchronous presentation of breast carcinoma and lymphoproliferative disorders in the axillary nodes of patients with newly diagnosed breast cancer: A case series

Dietlind Wahner-Roedler, Carol Reynolds, Judy C Boughey

Research output: Contribution to journalArticle

6 Scopus citations


Although occurrence of a second tumor is a well-recognized phenomenon in patients with a treated malignancy, simultaneous presentation with a second primary malignancy ("collision tumor") is rare in patients with breast cancer. We report a series of 7 patients who were undergoing axillary nodal staging of a newly diagnosed breast cancer. Six patients were found to have collision tumors in their axillary lymph nodes consisting of metastatic breast cancer and a previously unknown lymphoproliferative disorder. In 1 additional patient, a lymph node biopsy of a palpable axillary node resulted in the diagnosis of metastatic breast cancer and lymphoma. Awareness and diagnosis of such collision tumors will lead to appropriate management of each malignancy.

Original languageEnglish (US)
Pages (from-to)61-66
Number of pages6
JournalClinical Breast Cancer
Issue number1
StatePublished - Mar 1 2011



  • Multiple primary
  • Neoplasms

ASJC Scopus subject areas

  • Cancer Research
  • Oncology

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