Clinical Studies Of Lag -Screw Osteosynthesis In Condylar Fractures Of The Mandible

This study evaluated clinical and radiographic results after open reduction and lag-screw fixation of mandibular condyle fractures. PATIENTS AND Methods : 26 patients had been treated by lag-screw fixation for madibular condyle fracures via submandibular approach and follow up for over 6 months. The lag-screw used in this study was designed by Eckelt. Radiographically, resorption of the condyle head found in 4 cases (15%) and minimal displacement of the condyle head was found in 3 cases (12%). Post-operative infection were not found in all cases. Clinically, All patiens had a stable occlusion and normal mouth opening (over 40mm). TMD problems with crepitus or some discomfort encountered in 4 patients but tolerable to the patients. CONCLUSION: Lag screw fixation can be a good option especially high level condylar fractures, however this procedure must be used in cautiously because of slipping of the fragments and possible to resorption of the fragments.

Hemangiopericytoma On Buccal Mucosa

Hemangiopericytoma is uncommon vascular neoplasm that arises from pericytes arround the capillary walls. It was first described as a distinct vascular neoplasm by Stout and Murray in 1942 The anatomic distribution is widespread throughout the body, with approximately one third occur in the head and neck. No sex predilection has been found. Although middle age appears to be the most prevalent time of onset, this neoplasm has been found in all age groups. The differentiation between benign and malignant hemangiopericytoma can be difficult. Although the majority of these tumors are benign, there are malignant variants that can metastasize. Metastasis of seemingly benign tumors may appear year of decade later, so long term close follow-up is needed The treatment of choice is complete surgical excision of the tumor. Despite their vascular origin, these tumors are relatively radioresistant. Radiation therapy is reserved for inoperable metastases or treatment of postoperative surgical fields. Here we present a case of hemangiopericytoma occuring on the Lt. buccal mucosa.

Low grade osteosarcoma on the mandible: a case report

PERIPHERAL OSTEOMA OF THE MAXILLARY SINUS: A CASE REPORT

The Osteoma is a benign tumor characterized by proliferation of compact or cancellous bone, that may form peripherally in a periosteal location or in a central position. The most common site of peripheral osteoma in craniofacial area is the frontal sinus, but rare in the maxillary sinus. Clinically, this lesion that shows slow growing without symptoms can produce swelling and cause asymmetry. This tumor may arise at any age, but slightly more frequently in men than in women, and more common in young age. Radiographically, this lesion appears as a well-circumscribed radiopacity and histopathologically shows proliferation of either compact or cancellous bone. The etiology of ostemas in the paranasal sinus is unknown, but it has been suggested that they are frequently associated with infection and trauma, and in a certain cases are believed to develop in sinus polyps, which are an inflammatory reaction. The treatment of osteoma is surgical excision, but need not be excised unless it causes obstruction to a sinus cavity or disturbing cosmetically, and this tumor usually does not recur after surgical removal. We report a case of peripheral osteoma on the maxillary sinus in 46 male-patient who came our hospital for discomfort of the left cheek and TMJ area.