Most popular incisions for open reduction of mandibular condylar fractures are submandibular approach, preauricular approach, Risdon approach, and retromandibular approach etc. These methods are selected according to the location of condylar fracutre, condylar segments displacement, and preference of the surgeon. We performed the open reduction and rigid fixation by means of retromandibular approach for the treatement of mandibular condyle fracture in the 9 patients (8 cases were performed by direct reduction and rigid fixation, and 1 case was performed by Dr. Nam's method). The retromandibular approach has many advantages. This is more easier approach to the fracture site, better visibility and accessibility, less wound exposure, less muscle retraction, and more comfortable to patient because lesser sensory and motor nerve injury.
Humans ; Mandibular Condyle* ; Wounds and Injuries

Primitive neuroectodermal tumor (PNET) occuring in the brain (especially in the cereburm) of young individuals is a rare and highly malignant neoplasm. The authors analyzed 5 cases of primitive neuroectodermal tumor, operated from January 1986 to September 1987. They had characteristic clinical, radiologic and pathologic features. Patient's age ranged from 2 years to 14 years old (mean 8.2 years old) and there were 3 boys and 2 girls. They were rapidly growing tumor, with a brief duration of symptoms taking a rapidly progessive course. Computerized tomographic findings were characteristic, revealing the large, irregular, typically iso-to hyper-dense mass lesions with calcification and cystic or necrotic areas, and showing dense heterogeneous contrast enhancement of the mass in the cerebral hemisphere. Grossly all of the 5 cases showed hemorrhage and necrosis with sharp border and 2 cases showed calcification and cystic change grossly. Microscopically, they were predominantly composed of undifferentiated small dark cells with evidence of focal differentiation along glial and or neuronal lines. Four cases showed glial differentiation and three cases showed neuronal differentiation. Mesenchymal components were predominant in 3 cases.
Child ; Male ; Female ; Humans

Aneurysm ; Bone Cysts ; Curettage ; Cytochrome P-450 CYP1A1 ; Female ; Humans ; Joints ; Mandible ; Maxilla ; Middle Aged ; Tooth ; Transplants

No abstract available.
Neurilemmoma*