Endobronchial pigmented mass in a patient with primary malignant melanoma of the lung: A case report

Wang,Hansheng; Cheng,Jun; Li,Dan; Luo,Senyuan; Wang,Xiao; Liu,Yan; Wang,Meifang; Ren,Tao

doi:10.3892/ol.2023.14104

December-2023 Volume 26 Issue 6

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December-2023 Volume 26 Issue 6

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Case Report Open Access

Endobronchial pigmented mass in a patient with primary malignant melanoma of the lung: A case report

Authors:
- Hansheng Wang
- Jun Cheng
- Dan Li
- Senyuan Luo
- Xiao Wang
- Yan Liu
- Meifang Wang
- Tao Ren
View Affiliations / Copyright

Affiliations: Department of Pulmonary and Critical Care Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China, Department of Pathology, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China

Copyright: © Wang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
Article Number: 517
|
Published online on: October 17, 2023

https://doi.org/10.3892/ol.2023.14104
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Abstract

Malignant melanoma (MM) commonly presents as a primary skin tumor and respiratory MM cases are almost all metastatic. Primary lung MM (PMML) is quite rare, especially when manifested as an endobronchial pigmented mass, its diagnosis is relatively difficult and MM has a poor prognosis. Only a few cases have been described previously and the pathologic features, clinical behavior and therapeutic options are not well established. The present study reports the case of a 72‑year‑old female patient with PMML who denied any history of tumors. The patient complained of chest pain and coughing for 2 weeks. Chest computed tomography (CT) revealed a mass in the right upper lobe and an enlarged mediastinal lymph node. Positron emission tomogram‑CT suggested a hypermetabolic tumor. To confirm the diagnosis, the patient underwent a transbronchial forceps biopsy and endobronchial ultrasound‑guided transbronchial needle aspiration, which confirmed the diagnosis of PMML. Genetic testing identified a BRAF V600E mutation, so the patient received treatment with dabrafenib plus trametinib. PMML is extremely rare and is easily misdiagnosed as lung cancer due to its nonspecific clinical manifestations and imaging features. The diagnosis of PMML remains challenging due to its morphologic and immunophenotypic variability. Targeted therapy is a good option for advanced PMML patients with BRAF V600E mutations.

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Journals

International Journal of Molecular Medicine

International Journal of Oncology

Molecular Medicine Reports

Oncology Reports

Experimental and Therapeutic Medicine

Oncology Letters

Biomedical Reports

Molecular and Clinical Oncology

World Academy of Sciences Journal

International Journal of Functional Nutrition

International Journal of Epigenetics

Medicine International

Endobronchial pigmented mass in a patient with primary malignant melanoma of the lung: A case report

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