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Year : 1998  |  Volume : 3  |  Issue : 1  |  Page : 33-36

Traumatic aneurysm of the internal maxillary artery: A rare complication of mandibular fracture

Department of Otorhinolaryngology, University of Nigeria Enugu Campus, Nigeria

Correspondence Address:
M N Obiako
Dept Otorhinolaryngology UNEC
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Source of Support: None, Conflict of Interest: None

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This is a rare case of false aneurysm of the internal maxillary artery which followed fracture of the mandible. Some time in March, 1995 a youngman was involved in a motor cycle accident. He sustained injuries including fracture of the mandible (most certainty subcondylar). He was admitted in a hospital where the fracture was reduced and wired. After a few days in the hospital he was discharged. About 3 months after discharge he started to experience left sided, occasionally heavy epistaxis. He was treated in various hospitals, but when the bleeding continued to get worse he was referred to U.N.T.H. On admission x-ray of the sinuses was done and complete opacity of the left antrum was revealed. A decision to explore the antrum was made. At surgery the left maxillary sinus was filled with large, cystic, haemangiomatous, friable mass which destroyed totally the lateral wall of the antrum. Apparently in the process of mandibular fracture, the internal maxillary artery which lies close to the fracture site also got damaged. False aneurysm of the artery developed. The aneurysmal sac gradually increased in size and herniated through the damaged antral wall into the antrum. The sac continued to increase in size until the antrum was completely filled. It bled intermittently. The condition was successfully treated through Caldwell-luc operation.

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