E20.0

Clinical Causes: Unknown origin, classified as idiopathic. Possible autoimmune reactions where the immune system attacks the parathyroid glands. Genetic factors that may predispose individuals to develop the condition. In some cases, damage to the parathyroid glands during surgical procedures or radiation therapy, although this would be classified differently.

Key Symptoms: Muscle cramps or spasms (tetany) Numbness or tingling sensations, especially in the lips, fingers, and toes Fatigue and weakness Mood changes, including anxiety or depression Hair loss or dry skin Calcification of soft tissues in severe cases Difficulty breathing or wheezing if laryngeal muscles are affected Seizures in severe or untreated cases

Diagnosis Path: Diagnosis involves blood tests to evaluate calcium, phosphorus, and PTH levels. Typical findings include low calcium levels (hypocalcemia), low or inappropriately normal PTH levels, and elevated phosphorus levels. Additional assessments, such as urinary calcium excretion, may be performed to rule out other causes of hypocalcemia. Imaging studies may be used to detect tissue calcifications. A comprehensive clinical history and examination help exclude other possible causes of calcium imbalance.

Treatment Protocols: While the condition is lifelong, management focuses on correcting calcium deficiencies and maintaining balanced mineral levels. Treatment options include: