现代耳鼻喉教科书中,认为颈侧囊肿是先天性的,或系化脓性疾病引起淋巴结皮质下坏死液化所致,囊肿转移性癌甚少提及。本文报告4例,以孤立的颈侧囊肿为乳头状甲状腺癌的唯一临床症状,4例均为女性,全部作甲状腺全切除术和保守性颈廓清术。作者在讨论中述及乳头状腺癌是最常见的甲状腺恶性病,发生于年青人的占70～80%,虽多见于女性,但在年老男性似更具毒力。大部分病例生长缓慢,属低度恶性,隐匿的硬化性癌则是 In modern ENT textbooks, it is considered that cervical cysts are congenital, or that purulent diseases cause lymphocytic necrosis and liquefaction, and cystic metastatic cancer is rarely mentioned. In this report, 4 cases were reported. Isolated cervical cyst was the only clinical symptom of papillary thyroid carcinoma. All 4 cases were female. All of them were performed total thyroidectomy and conservative neck dissection. The author discussed in the discussion that papillary adenocarcinoma is the most common thyroid malignancy. It occurs in 70-80% of young people. Although it is more common in women, it seems that older men are more virulent. Most of the cases are slow-growing, low-grade, and the hidden sclerosing cancer is