A Case of MET Exon 14 Skipping Mutation: Positive Lung Adenocarcinoma Complicated by Paraneoplastic Neurological Syndrome.
Cureus
; 16(4): e57658, 2024 Apr.
Article
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| MEDLINE
| ID: mdl-38707111
ABSTRACT
A 67-year-old man with cervical spondylotic myelopathy undergoing conservative treatment presented with subacute progression of fine motor and ambulatory disturbances, leading to admission at a previous hospital. Pre-cervical laminoplasty chest computed tomography (CT) revealed a tumor in the left upper lobe of the lung, prompting transfer to our institution. Transbronchial biopsy findings were consistent with adenocarcinoma, diagnosed as clinical stage T2bN0M0, Stage IIA. The neurological abnormalities could not be solely attributed to cervical spondylotic myelopathy, leading to a diagnosis of concurrent paraneoplastic neurological syndrome (PNS). During hospitalization, the patient's condition progressed to a state of constant bed rest within two weeks. On the 17th hospital day, a left upper lobectomy was performed, resulting in significant improvement, allowing the patient to ambulate with assistance after two weeks, and transfer to a convalescent rehabilitation hospital on the 58th hospital day. Subsequent cancer multigene panel testing revealed a positive MET exon 14 skipping mutation. Given the absence of reports on this mutation in lung adenocarcinoma associated with PNS, we consider it rare and thus report this case.
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Cureus
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2024
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Article