[Pulmonary nuclear protein of the testis midline carcinoma:a case report].

Nuclear protein of the testis (NUT) midline carcinoma (NMC) is a rare malignant epithelial tumor that typically occurs in the midline regions such as the head, neck, and mediastinum. This tumor is characterized by rapid development, aggressive growth, and strong invasiveness. Due to its short duration, most patients are diagnosed at advanced stages, often leading to rapid mortality. Although reports on pulmonary NUT carcinoma are uncommon, this article presents a case of pulmonary NUT carcinoma in which the patient repeatedly expectorated bronchial casts and tumor tissue. Additionally, a comprehensive review of relevant literature from recent years is provided to enhance understanding of this disease.