A rare case of spondyloarthropathy: Iatrogenic hypoparathyroidism.

Hypoparathyroidism is an endocrinopathy that can develop idiopathically, as well as due to reasons associated with genetics, autoimmunity, surgery and radiotherapy. It usually presents with neuromuscular signs and symptoms, including enthesopathy caused by calcification of the ligament and enthesis sites, soft tissue calcification, hypertension, cataract and extrapyramidal findings due to basal ganglia calcification. Hypoparathyroidism-associated spondyloarthropathy (SpA) is a rarely seen clinical entity. Hypoparathyroidism-associated SpA differs from other inflammatory SpAs in that the results for human leukocyte antigen B27 and inflammatory markers are negative and bone density is normal. The symptoms are relieved by calcium and vitamin D, rather than anti-inflammatory drugs. Due to this difference in treatment modalities, the diagnosis of this type of SpA is important. This article presents the case report of a 52-year-old female patient with iatrogenic hypoparathyroidism accompanied by asymptomatic hypocalcemia and SpA clinic.