Primary pulmonary cancer colliding with metastatic breast carcinoma: hitherto unreported cases of cancer-to-cancer metastasis focusing on clinical implications

Lung Cancer. 2011 Oct;74(1):145-8. doi: 10.1016/j.lungcan.2011.06.008. Epub 2011 Jul 20.

Abstract

Lung is one of the main sites of metastatic tumors, but collision neoplasms consisting of a primary lung cancer and metastatic breast carcinoma have never been so far reported. We describe here 2 cases of primary non-small cell lung cancers (squamous cell and adenocarcinoma, respectively) colliding with metastatic breast carcinomas (ductal and lobular carcinomas, respectively). Clinico-pathologic features characterizing this challenging diagnosis and the important therapeutic implications are discussed.

Publication types

  • Case Reports
  • Review

MeSH terms

  • Adenocarcinoma / diagnosis*
  • Adenocarcinoma / pathology
  • Adenocarcinoma / physiopathology
  • Adenocarcinoma / therapy
  • Aged
  • Animals
  • Breast Neoplasms / diagnosis*
  • Breast Neoplasms / pathology
  • Breast Neoplasms / physiopathology
  • Breast Neoplasms / therapy
  • Carcinoma, Ductal / diagnosis*
  • Carcinoma, Ductal / physiopathology
  • Carcinoma, Ductal / secondary
  • Carcinoma, Ductal / therapy
  • Carcinoma, Lobular / diagnosis*
  • Carcinoma, Lobular / physiopathology
  • Carcinoma, Lobular / secondary
  • Carcinoma, Lobular / therapy
  • Carcinoma, Squamous Cell / diagnosis*
  • Carcinoma, Squamous Cell / pathology
  • Carcinoma, Squamous Cell / physiopathology
  • Carcinoma, Squamous Cell / therapy
  • Chemoradiotherapy, Adjuvant
  • Diagnosis, Differential
  • Female
  • Humans
  • Lung Neoplasms / diagnosis*
  • Lung Neoplasms / pathology
  • Lung Neoplasms / physiopathology
  • Lung Neoplasms / secondary*
  • Mastectomy
  • Middle Aged
  • Neoplasm Staging
  • Pathology, Molecular
  • Pneumonectomy
  • Remission Induction