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Yu-Deok Choi



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    P1.05 - Interventional Diagnostics/Pulmonology (Not CME Accredited Session) (ID 937)

    • Event: WCLC 2018
    • Type: Poster Viewing in the Exhibit Hall
    • Track:
    • Presentations: 1
    • Moderators:
    • Coordinates: 9/24/2018, 16:45 - 18:00, Exhibit Hall
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      P1.05-02 - Endobronchial Ultrasound-Transbronchial Needle Aspiration for Lymphoma in Patients With Mediastinal Lymphadenopathy (ID 13168)

      16:45 - 18:00  |  Presenting Author(s): Yu-Deok Choi

      • Abstract

      Background

      Surgical excision and core biopsy are the current preferred sampling techniques for diagnosing lymphoma. However, In patients who present with intrathoracic adenopathy that is suspicious for lymphoma, endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is an attractive option.

      a9ded1e5ce5d75814730bb4caaf49419 Method

      The cases of patients who had undergone EBUS-TBNA for 31 cases of suspected lymphoma were retrospectively reviewed.

      4c3880bb027f159e801041b1021e88e8 Result

      EBUS-TBNA diagnosis was that : 6 cases was diagnostic lymphoma, but not subtyping, 6 cases was specific lymphoma using cell block (2 cases of diffuse large B-cell lymphoma, NOS, 1 case of mantle cell lymphoma, 1 case of NK-T cell lymphoma, 1 case of anaplastic large cell lymphoma, and 1 case Hodgkin lymphoma) , 5 cases was granuloma, 4 cases carcinoma, 6 cases diagnostic lymphoid tissue without specific diagnosis, and 4 cases non-diagnostic. Of 31 cases, 14 (45.2%) were finally diagnosed with lymphoma. In EBUS-TBNA, these cases were diagnosed as lymphoma (12 cases) and non-diagnostic (2cases). Other diagnosis in EBUS-TBNA was not finally diagnosed as lymphoma.

      8eea62084ca7e541d918e823422bd82e Conclusion

      EBUS-TBNA is effective at diagnosing suspected lymphoma in patients with mediastinal lymphadenopathy. A specific EBUS-TBNA features, such as granulomas and carcinoma, are associated without a probability of lymphoma.

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    P3.09 - Pathology (Not CME Accredited Session) (ID 975)

    • Event: WCLC 2018
    • Type: Poster Viewing in the Exhibit Hall
    • Track:
    • Presentations: 1
    • Moderators:
    • Coordinates: 9/26/2018, 12:00 - 13:30, Exhibit Hall
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      P3.09-21 - Mixed Mucoepidermoid Carcinoma and Adenocarcinoma of the Lung: A Case Report and a Literature Review (ID 13605)

      12:00 - 13:30  |  Presenting Author(s): Yu-Deok Choi

      • Abstract

      Background

      Primary mucoepidermoid carcinoma of the lung is a rarely reported neoplasm. Synchronous primary malignancies of the lung comprising mucoepidermoid carcinoma and conventional adenocarcinoma are highly unusual neoplasm.

      a9ded1e5ce5d75814730bb4caaf49419 Method

      Case Report: A 75-year-old woman presented with lung mass. Chest computed tomography showed a single 3.5 cm mass over the right lower lobe.

      4c3880bb027f159e801041b1021e88e8 Result

      Microscopic examination revealed the tumor comprised two different histologic components of adenocarcinoma and muco­epidermoid carcinoma. This unique combination of lung malignancies showed characteristic morphologic and immunohistochemi­cal features. Molecular differentiation and genetic mutation analysis would be a valuable tool for the diagnosis of primary lung malignancy with two different histologic types.

      8eea62084ca7e541d918e823422bd82e Conclusion

      Herein, we present a rare case of mixed mucoepidermoid carcinoma and adenocarcinoma of the lung. In this work, we discuss the clinicopathological features of previously reported mixed mucoepi­dermoid carcinoma and adenocarcinoma of the lung with its mutation by molecular and genetic analysis.

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