继发性甲状腺机能亢进(以下称继发甲亢)伴发周期性瘫痪较少见,常被误诊为周期性瘫痪。现将我院外科所遇两例介绍于下:病例介绍病例1,患者邓××,男,35岁。以颈部肿块四年、双下肢不定期瘫痪三年之主诉入院。患者于四年前,无意发现颈部有一鸡蛋大小肿块,无不适。但肿块逐年渐增。继而出现心慌、多食(每日二斤多)易躁、消瘦(体重由一百六十斤降至一百二十斤),在西安按“甲状腺机能亢进”服“甲亢平”、“他巴唑” Secondary hyperthyroidism (hereinafter referred to as secondary hyperthyroidism) associated with periodic paralysis is less common, often misdiagnosed as periodic paralysis. Surgery is now encountered in our hospital two cases introduced in the following: Case Presentation Case 1, Deng × ×, male, 35 years old. To the neck mass for four years, both paralysis of the lower extremities paralyzed the main complaint of admission. Four years ago, the patient had no intention of finding an egg in the neck with a mass of lumps and no discomfort. But the mass is increasing year by year. Followed by palpitation, eat more (more than two pounds per day) irritability, weight loss (weight from one hundred sixty pounds to one hundred and twenty pounds), in Xi’an by the “hyperthyroidism” service “hyperthyroidism”, “he Barazole ”