title: Retrocalcaneal Bursitis due to Rare Calcaneal Osteochondroma in Adult Male : Excision and Outcome.
abstract: BACKGROUND
  Osteochondroma is the most common benign tumour of the bone and is considered as developmental lesion of the bone. Common site of osteochondroma presentation is around the knee but calcaneal osteochondroma as such is a rare entity. Osteochondromas grow during childhood through adolescence, but usually the growth of osteochondroma ends when the epiphyseal plates close. In an adult, growth of an osteochondroma suggests the diagnosis of a malignant transformation. However, it can also present as pressure symptom in later phase of life. Here, we presented a case of retrocalcaneal bursitis in late phase of life of a male farmer due to late growth of osteochondroma.
  
  
  METHODS
  We report a case of calcaneal osteochondroma which is an extremely rare site of occurrence with painful swelling of ankle causing limitation of walking in a 58-year-old male. Surgical excision of tumour followed by a histological confirmation reported negative for any malignant changes.
  
  
  CONCLUSIONS
  There may be chances of osteochondroma being a reason for retrocalcaneal bursitis. It is possible of late detection of benign osteochondromas which show symptomatic growth and pressure effect in skeletally mature patients without malignant transformation.
authors.affiliation: Department of Orthopedics, IQ city Medical College, Durga pur, West Bengal. India.
authors.forename: Rupesh
authors.initials: R
authors.lastname: Kumar
authors.affiliation: Department of Pathology, Rajendra Institute of Medical Sciences, Ranchi, Jharkhand. India.
authors.lastname: Anjana
authors.affiliation: Department of Orthopedics, V.M Medical College and safdarjung hospital, New Delhi. India.
authors.forename: Meghraj
authors.initials: M
authors.lastname: Kundan
keywords: calcaneus; osteochondroma; retrocalcaneal bursitis