Author of

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  P2.09 - Pathology (Not CME Accredited Session) (ID 958)

  • Event: WCLC 2018
  • Type: Poster Viewing in the Exhibit Hall
  • Track:
  • Presentations: 1
  • Moderators:
  • Coordinates: 9/25/2018, 16:45 - 18:00, Exhibit Hall

  • 27079

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    P2.09-21 - Women with Synchronous or Metachronous Lung and Ovarian Cancers: A Multi-Institutional Report (ID 12485)

    16:45 - 18:00  |  Author(s): Fausto Barbieri
    • Abstract
    • Slides

    Background
    

    In women, lung cancer (LC) and ovarian cancer (OC) are, respectively, the second and eighth malignancies for incidence in developed Countries. Despite increasing incidence and mortality of LC, association with OC is rare and no literature data are available on this topic yet. Our aim was to describe a series of patients with synchronous or metachronous LC and OC and to identify common clinical and pathological patterns.

    a9ded1e5ce5d75814730bb4caaf49419 Method
    

    We retrieved the medical charts of patients who referred to 30 European Oncological Institutes from 2008 to 2018. When patients with synchronous (up to 3 months of time interval in onset) or metachronous LC and OC were found, we collected detailed medical history, pathological features and clinical outcomes. Whenever available, formalin fixed paraffin embedded tumor tissue from both specimens was collected for centralized pathology revision with an immunohistochemical marker panel including TTF-1 and PAX-8. In ambiguous cases, a broader panel was performed (p40, CK-7, WT1, CA125, Calretinin, EMA, CEA, CgA, Vimentin, Napsin-A). Whenever tested, genetic alterations in LC and OC were also reported.

    4c3880bb027f159e801041b1021e88e8 Result
    

    As of April 2018, among 30 European Oncological Centers (Italy, France, Slovenia), 11 retrieved in their series patients with a history of LC and OC, for a total of 18 cases in the last 10 years. Paired histological specimens were available in 6 cases. One patient was excluded, since pathology revision revealed that lung lesions were metastases from serous OC. Thus, analyses were performed on 17 patients. In 10/17 cases (58.8%), LC and OC were metachronous and, in 6/10 cases, OC preceded LC diagnosis, with a median interval of 4.5 years. Median age at diagnosis of the first malignancy was 62 years, the majority of patients (64.7%) were never-smoker, 6 had cancer familial history. Interestingly, 4 patients (23.5%) reported also a third or fourth malignancy. After a median follow-up of 6.5 years, 10 patients are alive. Regarding histology, most of LC were adenocarcinoma (14/17, 82.3%). Molecular status was available in 9/14 cases: 4 had EGFR mutation, 1 B-RAF mutation and 2 ALK translocation. OC were mostly high-grade serous (83,3%). BRCA status was available in 6 patients: 2 mutated, 2 wild-type and 2 affected by variants of unknown significance (USV). Moreover, one synchronous case presented both BRCA-USV and B-RAF mutation.

    8eea62084ca7e541d918e823422bd82e Conclusion
    

    In our series, synchronous and metachronous LC and OC were often driven by genetic alterations. Further genetic analysis with next generation sequencing technology has already been planned.

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