from the Clinical History.--The patient, female, aged thirty years, was admitted to St. Joseph's Hospital. Two years and three months ago she first noticed a small, hard tumor near the first bicuspid tooth on the left side of the lower jaw bone. It grew slowly. In childhood there was nothing unusual about her teeth, which were perfectly regular and even up to the time of her present illness. Ex...

The aim of this report was to characterize osteonecrosis of the jaws (ONJ) in previously irradiated fields in dogs that underwent radiotherapy (RT) for oral tumors. Osteoradionecrosis of the jaw (ORNJ) was further defined as osteonecrosis in a previously irradiated field in the absence of a tumor. Thirteen dogs clinically diagnosed with 15 ONJ lesions were included in this retrospective case se...

Abstract Background To evaluate factors associated with osteoradionecrosis of the jaw (ORNJ) in patients head and neck squamous cell carcinoma (HNSCC), focusing on jaw-related dose–volume histogram (DVH) parameters. Methods We retrospectively reviewed medical records 616 HNSCC treated curative-intent or postoperative radiation therapy (RT) during 2008–2018. Patient-related (age, sex, history sm...

Granular cell tumor is an uncommon benign hamartomatous lesion occurring in almost any part of the body. Granular cell lesions may be found in other diverse sites, such as the jaw, skin, gastrointestinal tract and respiratory tract. The tongue and buccal mucosa are common intraoral sites. The histogenesis of the lesion remains unknown. In this paper, we report the occurrence of an oral granular...

Of 95 young non-Hodgkin's lymphoma patients entered consecutively on the National Cancer Institute (NCI) Protocol 7704, 26 (27.4%) had involvement of one or more bones. The mean age of these 26 patients was 16.6 years, and the male to female ratio was 3.3:1. Tumor histology included undifferentiated Burkitt's lymphoma in 12, undifferentiated non-Burkitt's lymphoma in two, undifferentiated, unsp...

It has been reported that the common sites of brown tumors are the jaw, pelvis, ribs, femurs and clavicles. We report our experience in a case of brown tumor of the patella caused by primary hyperparathyroidism. An initial radiograph and CT showed an osteolytic lesion and MR images showed a mixed solid and multiloculated cystic tumor in the right patella. One month after the parathyroidectomy, ...

osteosarcoma (os) is a malignant mesenchymal tumor, which rarely occurs in the maxilla. although variable histologic and radiographic features of os have been reported previously, in the majority of the cases painful swelling of the jaw is mentioned as the first clinical presentation. furthermore, early diagnosis and wide surgical resection of the tumor are the most important determinant factor...

Brown tumors are osteolytic lesions associated with hyperparathyroidism (HPT). They may involve various skeletal segments, but rarely the cranio-facial bones. We report a case of young boy swelling jaw secondary to brown tumor presenting as first manifestation primary HPT (PHPT). He was found have located in skull, well. Different imaging technologies were employed for diagnosis and follow-up a...

Ameloblastic carcinoma is a rare cause of jaw tumors, especially in children. This rare, rapidly growing, malignant tumor of odontogenic origin affects predominantly the mandible and maxilla. Hypercellularity, lack of differentiation, high mitotic index, vascular and neural invasion are its main histological features. Local destruction and distant metastases to the lungs, bones, liver and brain...

Since its first publication in 1975, the squamous odontogenic tumor remains the rarest odontogenic lesion, with around 50 cases in the English-language literature in which the microscopic characteristics are frequently very well demonstrated. However, articles which discuss the radiographic aspects are scarce, especially with emphasis on the differential diagnosis. The present treatise proposes...