Pancoast Syndrome and Middle Ear Mass as the First Manifestation of Small-Cell Lung Carcinoma: A Case Report.

Small-cell lung carcinoma (SCLC) is a rare cause of Pancoast syndrome. We present a 54-year-old man with shoulder pain, arm weakness, and a middle ear mass, leading to a diagnosis of SCLC at the lung apex. This case highlights the importance of considering SCLC in the differential diagnosis of Pancoast syndrome. Early recognition and a comprehensive diagnostic approach are crucial for optimizing patient outcomes.