BACKGROUND AND AIM: Intra-osseous pathologic lesions of the jaw bones have different radiological and clinicopathological features from benign to malignant lesions. The aim of this study was to determine the prevalence of jaw lesions in Isfahan, Iran, during 1992-2017. METHODS: In this descriptive-analytical study, all re...

INTRODUCTION Osseous metaplasia in the gastrointestinal tract is a rare phenomenon. CASE PRESENTATION We present the case of a 62-year-old Hispanic man with two colonic polypoid lesions, one of which, upon resection and histopathological examination, was found to be a traditional serrated adenoma with a focus of stromal osseous metaplasia. CONCLUSIONS Our patient's case is the third report ...

Osseous metaplasia is defined by the presence of heterotopic normal bone tissue in a soft tissue. The bone matrix is associated with osteoblasts, osteoclasts, adipocytes and haematopoietic stem cells. Osseous metaplasia pathophysiology is not well known, but many factors have been incriminated including chronic inflammation and chronic ischaemia. We describe the second case of osseous metaplasi...

Adenocarcinoma is the most common type of malignant pulmonary tumor, but osseous metaplasia of this tumor is extremely rare. To date, only 21 cases have been reported in the literature worldwide. Here, we report a case of primary pulmonary adenocarcinoma with benign osseous stromal metaplasia in a 60-year-old woman and discuss the pathogenesis of intratumoral ossification and review the relevan...

An osseous metaplasia is a phenomenon which has been described in a wide variety of tissue types with respect to both neoplastic and non-neoplastic conditions. However, an osseous metaplasia is exceedingly rare in colonic polyps. We are herein representing a case of osseous metaplasia in a juvenile rectal polyp in a six year old boy, with review of the literature on the suggested mechanisms of ...

Background: Osseous metaplasia occurring within the gastrointestinal tract is a rare phenomenon. Only a few of cases have been documented that osseous metaplasia can occur in colorectal polyps, although its underlying pathogenesis has not yet been elucidated. Methods: Two cases of osseous metaplasia within inflammatory and adenomatous polyps of colon, respectively. The clinical and histological...

Intra-osseous fibromas of the jaw are classified by origin. Intra-osseous odontogenic fibromas have odontogenic epithelia, while desmoplastic fibromas do not. However, it is often difficult to determine the odontogenic origin for central fibromas. Three subjects with a diagnosis of intra-osseous fibroma were examined. Case 1 was a 35-year-old man found to have a panoramic radiograph from the ri...

We studied the anatomy of the patellofemoral joint in the axial plane on cryosections from a cadaver knee and on MR arthrotomograms from 30 patients. The cryosections revealed differences in the geometry and anatomy of the surface of the articular cartilage and corresponding subchondral osseous contours of the patellofemoral joint. On the MR arthrotomograms the surface geometry of the cartilage...

BACKGROUND The purposes of this study were to determine the prevalence of and the association between shoulder contracture and osseous deformity in a cohort of children with an obstetrical brachial plexus injury and to identify the risk factors for these complications. METHODS In a retrospective cohort study, all children with an obstetrical brachial plexus injury who had been born between Ja...