髓外浆细胞瘤是指发生在骨髓造血组织以外的浆细胞肿瘤,目前发病原因不明,好发于呼吸道,认为与慢性吸入性刺激和病毒感染有关。其临床症状与肿瘤侵犯部位直接相关,症状轻重视肿瘤生长部位、大小及扩展范围而定,发生于鼻咽部可伴有嗅觉丧失,鼻阻、流涕、头痛等,喉部可有声嘶、呼吸困难、 Extramedullary plasmacytoma refers to a plasma cell tumor that occurs outside the hematopoietic tissue of the bone marrow. The cause of the disease is currently unknown. It occurs in the respiratory tract and is thought to be associated with chronic inhalational stimuli and viral infections. Its clinical symptoms are directly related to the site of tumor invasion. Symptoms focus on the site, size, and extent of tumor growth. Occurrences in the nasopharynx can be accompanied by loss of olfactory, nasal obstruction, runny nose, and headaches. The larynx may have sonars, Difficulty breathing,