Severe hypothyroidism as the cause of rhabdomyolysis and acute kidney injury – a case report

Abstract

Hypothyroidism is a set of clinical symptoms associated with a deficiency of thyroid hormones. Musculoskeletal symptoms, i.e. stiffness, pain or muscle fatigue, are among the many manifestations of the disorder. Rhabdomyolysis, a syndrome accompanying muscle tissue damage, which leads to acute kidney injury, may be a complication of hypothyroidism. In this paper, we present a case of a 35-year-old patient with hypothyroidism due to Hashimoto’s disease, with a 4-year history of diagnosis for periodic pain and muscle weakness in the lower extremities. The patient presented to the hospital due to the recurring symptoms. One month before admission, she had discontinued thyroid hormone supplementation. Laboratory tests showed unquantifiable low levels of free thyroid hormones, elevated creatine kinase levels, and elevated kidney function parameters. Non-compliance can lead to potentially life-threatening complications in hypothyroid patients. Prompt diagnosis and implementation of treatment can lead to symptom resolution.