Snapshot A 35-year-old man presents to his surgeon for 1-week follow-up of his thyroidectomy for thyroid neoplasm. He reports that his post-operative recovery is going well and denies any symptoms except some muscle cramping. His past medical history includes hypertension. On physical exam, there are spasms of his triceps with blood pressure cuff inflation and facial muscle contractions with tapping of the cheeks. Introduction Clinical definition login to view 3 more bullets Etiology Surgical excision or injury (most common) Autoimmune destruction Pathogenesis login to view 9 more bullets Presentation Symptoms login to view 8 more bullets Studies Diagnostic testing login to view 7 more bullets Differential Pseudohypoparathyroidism login to view 3 more bullets DIAGNOSIS Diagnostic criteria login to view 2 more bullets Treatment First-line login to view 10 more bullets