title: [A 49-year-old man with irritability, palpitations, hand tremor, weight loss and thyroid nodule].
authors.affiliation: Departamento de Medicina Interna, Hospital General de México, Centro Médico Nacional Siglo XXI, IMSS, México, D.F., México.
authors.forename: Astrid
authors.initials: A
authors.lastname: Salcedo-Gómez
authors.forename: Baldomero
authors.initials: B
authors.lastname: González-Virla
authors.forename: César
authors.initials: C
authors.lastname: López-Tarabay
authors.forename: Guadalupe
authors.initials: G
authors.lastname: Vargas-Ortega
mesh_terms: D001145:Arrhythmias, Cardiac / Q000209:etiology; D018276:Carcinoma, Medullary / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D007508:Irritable Mood; D008297:Male; D008875:Middle Aged; D013964:Thyroid Neoplasms / Q000150:complications* / Q000175:diagnosis; D016606:Thyroid Nodule / Q000150:complications* / Q000175:diagnosis; D013965:Thyroidectomy; D014202:Tremor / Q000209:etiology; D015431:Weight Loss