Abstract:
Lung cancer was the most often diagnosed cancer and the leading cause of death among men. it is usually discovered in the late metastatic stage. Metastasis of lung cancer to axillary lymph nodes is extremely rare. This case report presents A 73-year-old male with a productive cough and shortness of breath admitted to the emergency department. Physical assessment revealed tenderness in the upper chest and lower sternal area, as well as other symptoms. Lab results were normal, but a scan showed various lesions in the lungs, lymph nodes, liver, and spine. A biopsy confirmed metastatic squamous cell carcinoma originating from the lungs, and the patient started immunotherapy. Metastasis of lung cancer to axillary lymph nodes is rare. Normally, lymphatic drainage to the axillary lymph nodes comes from the upper limbs and chest wall instead of the lungs. There have been many theories hypothesized to explain the unusual pattern of ALN metastases from lung cancer. Lung cancers, including squamous cell carcinoma, rarely metastasize to axillary lymph nodes, but should be considered in cases with chest wall invasion.