Primary neuroendocrine tumor of parotid gland: A case report and literature review

Neuroendocrine neoplasms (NENs) are a group of malignant neoplasms that primarily occur in the gastrointestinal tract, pancreas, and lungs, with surgical intervention being the most common treatment approach. NENs originating in the oral and maxillofacial regions are relatively rare, and those originate in the parotid glands are even rarer. This paper presents a case of a primary parotid NENs complicated by distant metastases to the lungs and ribs. Surgical resection was performed, and we review relevant data and literatures, and discuss the characteristics of its diagnosis and classification.