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Bladder and gastric metastases from lung adenocarcinoma harboring codon 13 KRAS mutation: a case report with unusual clinical outcome

Abstract

Aims and background

Gastric and bladder metastases are rare in non-small-cell lung cancer (NSCLC) and the differential diagnosis with primary tumors requires an in-depth examination. KRAS gene mutations are the main oncogenic driver of lung adenocarcinoma in Caucasian patients, occurring in 25%-30% of cases, but their prognostic and predictive role is complex and not fully clarified. KRAS mutations in lung adenocarcinoma are considered negatively predictive for epidermal growth factor receptor tyrosine kinase inhibitors therapy as well as for adjuvant chemotherapy. In this report, the authors describe a case of lung adenocarcinoma harboring a codon 13 KRAS mutation detected in all the biopsies performed in unusual metastatic sites during an atypical disease course.

Conclusions

Recently, a different prognostic significance of various KRAS mutations in lung adenocarcinoma has been suggested. Further studies on rare biomolecular alterations to identify subgroups of patients with different prognostic/predictive characteristics are needed.

Tumori 2015; 101(5): e138 - e140

Article Type: CASE REPORT

DOI:10.5301/tj.5000358

Authors

Domenico Galetta, Annamaria Catino, Andrea Misino, Antonella De Ceglie, Antonio Logroscino, Giovanni Simone, Maria Iole Natalicchio

Article History

Disclosures

Financial support: There are no funding source.
Conflict of interest: All authors report that they have no conflicts of interest.

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Authors

Affiliations

  • Clinical Cancer Center, “Giovanni Paolo II,” Bari - Italy
  • Azienda Ospedaliero-Universitaria OORR, Foggia - Italy

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