Primary de novo intraosseous carcinoma of the jaws has been rarely reported. We present a new case of this unusual tumour and discuss its histopathological and clinical aspects. The subject was a 76-year-old man who was seen due to complaints of pain and the presence of gingival changes in the left mandible. A panoramic radiograph and computed tomography revealed a large mandibular radiolucency...

Primary extradural meningioma is about 1-2% of all meningiomas. Primary intraosseous meningioma is a rare form of intra-bone tumors that account for approximately 67% of extradural meningiomas. We report a primary intraosseous meningioma of a 69-year-old man who had headaches and a mass on right parietal scalp for the past few months. Remarkably, the brain tissue within the osteolytic cavity of...

Intraosseous mucoepidermoid carcinoma is a rare tumor which affects women more than men and is more common in the mandible. The radiological examination reveals a well-defined unilocular or multilocular radiolucent lesion. This tumor may resemble a glandular odontogenic cyst, particularly in incisional biopsies. The accurate diagnosis of these lesions is imperative because the subsequent treatm...

We studied 50 patients with fractures of the femoral neck, 33 intracapsular and 17 extracapsular. Intraosseous pressure was measured by a transducer within the bone to quantify blood flow, and intracapsular pressure by a needle introduced into the joint space. The mean intracapsular pressure was lower in the extracapsular fractures. In these, the mean intraosseous pressure in the femoral head w...

Intraosseous glomus tumors of bone are extremely rare. We report a case of an intraosseous glomus tumor of the ulna. The patient was a 25-year-old woman who had a three-month history of a palpable mass in her right forearm with spontaneous pain. Radiographs showed cortical hypertrophy and a shell-like bone formation surrounding the small osteolytic lesion within the cortex of the ulna diaphysis...

INTRODUCTION Six cases are reported, each presented at the 11th Biennial Congress of the International Association of Oral Pathologists as an instructive case for differential diagnosis on the basis of clinical, imaging or histological features. CLINICAL PICTURE Case diagnoses included a large, possibly intraosseous, myofibroma presenting with an oral mass; Langerhans cell histiocytosis with ...

We describe a rare intraosseous myoepithelioma, arising in a rib. The patient was a 14-year-old female. The tumor, composed of epitheliod cells and plump spindle cells, was immunopositive for AE1/AE3, S-100 protein, HHF-35, desmin, smooth muscle actin (SMA), CD10, and c-kit, indicating a diagnosis of myoepithelioma. The tumor had invaded surrounding soft tissues, indicating a locally aggressive...

Hemangiomas are benign tumors of the capillary endothelium involved in varied clinical and pathologic entities. Congenital hemangioma is quite rare compared to infantile hemangioma. Hemangiomas rarely occur in bone. Intraosseous hemangiomas are most commonly found in the vertebral column and skull. The mandible is the most frequently affected skull bone. Intraosseous hemangiomas commonly presen...

Intraosseous anesthesia is an effective and increasingly used technique with few reported complications. The technique uses a specialized drill to perforate the osseous cortex where local anesthetic can then be deposited to anesthetize teeth. It has been reported that separation of the perforation drills from their plastic bases can occur because of the friction generated during osseous perfora...

At necropsy of fatal cases due to craniocerebral trauma it is highly recommended that the intraosseous course of the internal carotid arteries are dissected, as detected injuries of these vessels may allow improved conclusions concerning the course of death. Suitable preparation techniques are presented. On the basis of the anatomical and physiological situation as well as pathophysiological co...