1病例资料患者,女,17岁,慢性病程,因反复心悸、大汗伴颈部肿大1年余入院,患者1年前无明显诱因下出现心悸,活动后明显加重,静息时亦可出现,有怕热、多汗,易饥、多食、体质量下降(近3个月体质量下降5 kg),伴颈部对称性肿大,烦躁失眠,无突眼、畏光、复视,无眼部肿痛、异物感。为求诊治,遂来我院门诊就医,门诊查甲功能提示:游离三碘甲状腺原氨酸(FT3): 1 Case data Patients, female, 17 years old, chronic disease course, due to repeated palpitations, sweating with neck enlargement more than 1 year admission, patients with palpitation without obvious incentive 1 year ago, after the activity was significantly increased, rest may also be Appear, afraid of heat, sweating, easy to eat more hungry, weight loss (body mass decreased 5 kg in the past 3 months), with neck symmetry swelling, irritability, insomnia, no exophthalmos, photophobia, diplopia , No eye swelling, foreign body sensation. To seek treatment, then came to our hospital for medical treatment, outpatient service inspection A Tip: Free triiodothyronine (FT3): free triiodothyronine