title: Intraarticular heterotopic ossification as the initial manifestation in a child with pseudohypoparathyroidism 1a.
abstract: The authors describe a 6 year old girl who initially presented with limping due to intraarticular ossification of left knee joint but later developed carpopedal spasms. She had Albright's hereditary osteodystrophy phenotype with hypocalcemia and hyperphosphatemia with elevated parathyroid hormone. She was diagnosed to have pseudohypoparathyroidism 1a (PHP1a) with heterotopic intraarticular ossification. This case emphasizes the need for evaluation of PHP in patients with intraarticular ossification to facilitate early diagnosis of PHP.
authors.affiliation: Department of Endocrinology, Seth G S Medical College, Parel, Mumbai, Maharashtra, India. drvijayasarathi@gmail.com
authors.forename: Vijaya
authors.initials: V
authors.lastname: Sarathi
authors.forename: Abhishek
authors.initials: A
authors.lastname: Patil
authors.forename: Roshan
authors.initials: R
authors.lastname: Wade
authors.forename: Tushar R
authors.initials: TR
authors.lastname: Bandgar
authors.forename: Nalini S
authors.initials: NS
authors.lastname: Shah
mesh_terms: D002648:Child; D005260:Female; D006801:Humans; D007719:Knee Joint; D009999:Ossification, Heterotopic / Q000000981:diagnostic imaging / Q000209:etiology*; D011547:Pseudohypoparathyroidism / Q000150:complications / Q000175:diagnosis*; D011859:Radiography