Peripheral primitive neuroectodermal tumor (pPNET) is a rare and highly malignant undifferentiated tumor, which presents in infants and young adults. pPNETs in the head and neck region are uncommon and have a varying incidence of occurrence. Peripheral PNETs of the maxilla and mandible are particularly rare. At present, only 16 cases of pPNET of the maxilla and 13 cases of pPNET of the mandible...

We present a case of a 15-year-old male with primary bone lymphoma who was initially referred for suspicion of chronic osteomyelitis of the mandible. A bone scan and gallium scan demonstrated congruent uptake in the mandible, suggestive of chronic osteomyelitis. A biopsy subsequently showed B-cell lymphoma of the bone with low Ki-67. A fluorodeoxyglucose positron emission tomography (FDG-PET) s...

I n considering the many complicated motions that the human mandible is capable of performing, one is inclined to overlook the almost imperceptible decrease in arch width that accompanies its movements. The mandible may be likened to an archer’s bow, and the muscles may be compared to its string. During opening and closing jaw movements, it is thought that the muscles of the floor of the mouth ...

Abstract Introduction The purpose of this study was to evaluate and compare the skeletal, dentoalveolar soft-tissue effects 2 fixed functional appliance; Forsus Fatigue Resistance Device (FFRD) PowerScope appliance in treating patients with skeletal class II division 1 malocclusion. Materials Methods This comparative prospective two-group included 20 a mean age 11.2 ± 1.6 years malocclusion ret...

awake intubation is the choice for airway management in anticipated difficult airway (da), which means establishing airway without induction of deep sedation; however, in cases where sedation is precarious, decision in emergency situations, success in awake intubation is dependent on proper regional airway block. a 21 year old man with bilateral temporo-mandibular ankyolosis and a 25 years old ...

introduction: raising the knowledge of skeletal and soft tissue changes with aging has been highly essential due to an increasing demand for aesthetic facial surgery following aging. the aim of this study is to evaluate the three dimensional computed tomographic images and process of changes in mandible with aging. materials and methods: in this descriptive study, the facial ct scans were obtai...

introdouction: the purpose of the present study was to determine the possible relationship between gonial angle size and three mandibular morphometric parameters, namely, panoramic mandibular index (pmi), mandibular cortical width (mcw), and antegonial notch depth (ad), in digital panoramic radiographs. materials and methods: pmi, mcw, and ad were calculated in digital panoramic radiographs of ...

conclusions the mental foramina were most commonly located between the first and second premolars and below the apex. a continuous appearance was the most common appearance for the mental foramen, which was similar in males and females. background the position of the mental foramen is critical for surgery and local anesthesia. objectives this study was conducted to assess the position of the me...

introduction the glandular odontogenic cyst (goc) is a rare, locally aggressive and potentially recurrent cyst of jaws which lead in diagnostic and therapeutic challenges. since 1992, 111 cases of goc have been reported, with 0.2% incidence among odontogenic cysts. conclusions glandular odontogenic cyst is an uncommon and relatively aggressive cyst with a high recurrence rate. clinical and radi...

the neurilemmoma is a benign neoplasm of schwann cell origin. one of the histopathologic subtypes of this tumor is ancient schwannoma which is characterized by degenerative alterations including cystic change, calcification, hemorrhage, and hyalinization. intraosseous schwannomas especially ancient ones are rare tumors. here we present a case of intraosseous ancient schwannoma in the lower jaw ...