title: Coexistence of ankylosing spondylitis and hereditary multiple exostoses:coincidence or association.
abstract: Coexisting ankylosing spondylitis and hereditary multiple exostoses have rarely been reported (three patients) previously. A 27-year-old man with hereditary multiple exostoses is presented as a fourth report. At the age of 15 years, the patient had multiple exostoses around the knee, ankle and shoulder joints. He was diagnosed with ankylosing spondylitis 3 years ago. The patient's sister and his 3 brothers also have multiple exostoses without any family history of spondyloarthropathy or inflammatory arthritis. The aim of this report is to discuss an interesting coexistence of these two diseases. The increasing number of reported patients who have a coexistence of these two diseases might suggest that the association of these two diseases is stronger than a coincidence.
authors.affiliation: Department of Rheumatology, Vali-Asr Hospital, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran ; Center for Research on Occupational Disease, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Abdolrahman
authors.initials: A
authors.lastname: Rostamian
authors.affiliation: Department of Orthopedics, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Hamed
authors.initials: H
authors.lastname: Mazoochy
authors.affiliation: Department of Rheumatology, Vali-Asr Hospital, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Shafieh
authors.initials: S
authors.lastname: Movassaghi
authors.affiliation: Department of Orthopedics, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Seyed Mohammad Javad
authors.initials: SM
authors.lastname: Mortazavi
authors.affiliation: Department of Rheumatology, Vali-Asr Hospital, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Elham
authors.initials: E
authors.lastname: Sadeghzadeh
authors.affiliation: Department of Rheumatology, Vali-Asr Hospital, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran ; Department of Biology, Payame Noor University, Karaj, Iran.
authors.forename: Fatemeh
authors.initials: F
authors.lastname: Shahbazi
authors.affiliation: Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Hossein
authors.initials: H
authors.lastname: Ghanaati
keywords: Exostoses, Multiple Hereditary; Spondylitis, Ankylosing