Osteochondromatosis and the Coronoid- Zygomatic Pseudojoint (jacob’s Disease) as an Unusual Cause of Midfacial Asymmetry and Jaw Restriction
نویسنده
چکیده
A young male presenting with a history of progressive midfacial symmetry and limitation of mouth opening was found to have a unilateral coronoid hyperplasia forming an osteochondromatous pseudojoint with the expanded zygomatic arch (Jacob’s disease). This paper reviews the differential diagnoses of problems, especially in developing countries, that can cause restricted mouth opening, highlighting problems with conventional radiography and the role of CT assessment in the diagnosis of this rare condition.
منابع مشابه
Osteochondroma of the coronoid process (Jacob's disease): an unusual cause of restricted jaw motion.
Osteochondromas are the most common benign bone tumor, most commonly found in the ends of long bones; however, they rarely involve facial bones, particularly the mandible. Osteochondromas involving the coronoid process have rarely been reported in the literature but pose a diagnostic dilemma. When large enough, osteochondromas of the mandibular coronoid process can form a joint with the zygomat...
متن کاملLarge Osteochondroma of the Coronoid Process of Left Mandible: Clinical and Imaging Findings of a Rare Case
Submit Manuscript | http://medcraveonline.com benign bone tumors and %8-15 of all primary bone tumors. The World Health Organization describes the OC as a cartilage-capped bony protrusion on the external surface of bone [1]. Although Von Langenbeck defined coronoid process hyperplasia in 1853, Jacob first described OC of the coronoid process forming pseudojoint between the coronoid process and ...
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A large number of disorders affecting the masticatory system can cause restriction of mouth opening. The most common conditions related to this problem are those involving the temporomandibular joint (TMJ) and the masticatory muscles, when facial pain also is an usual finding. Congenital or developmental mandibular disorders are also possible causes for mouth opening limitation, although in a v...
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Introduction Mandibular coronoid process hyperplasia is an uncommon congenital or developmental temporomandibular joint disorder, characterized by elongation of the coronoid process, which may cause limited mandibular movement as a consequence of interference between the hyperplastic coronoid process and the medial surface of the zygomatic arch. Methods Mandibular coronoid process hyperplasia...
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