An 87 year-old white female presented with a two-year history of intermittent discomfort in her left foot. PET-CT identified intense18F-fluorodeoxyglucose (FDG) uptake corresponding to the lesion. Histology of a fine needle aspiration and open biopsy were consistent with a benign giant cell tumor (GCT) of the bone. GCT of bone is an uncommon primary tumor typically presenting as a benign solita...

A wide range of diseases may present with radiographic features of osteolysis. Periapical inflammation, cysts and benign tumours, bone malignancies, all of these conditions may show bone resorption on radiograph. Features of the surrounding bone, margins of the lesion, and biological behaviour including tendency to infiltration and root resorption, may represent important criteria for distingui...

Osteochondroma is the most common benign bone tumour. The risk of sarcomatous change in an isolated lesion is approximately 1%. We report a case of an isolated osteochondroma which appeared benign on clinical and plain radiographic examination but routine histological analysis revealed non-Hodgkin's lymphoma in the underlying bone. This association has not previously been reported and the case ...

The Neuro Image Quiz, Answers T.P. Thomas P. Naidich Thomas P. Naidich, MD, Division of Neuroimaging, Children’s Memorial Hospital, 2300 Children’s Plaza, Chicago, IL 60614 (USA) These images demonstrate a well-circumscribed lobu-lated erosion of the anterior parietal bone, situated just posterior to the coronal suture. In this case the zone of transition from obviously normal bone to obviously...

The aim of this study was to assess the value of 99mTc-hexakis-2-methoxyisobutylisonitrile (MIBI) scintigraphy in patients with clinical and radiologic features of primary or metastatic musculoskeletal tumors. Methods: The scintigraphic findings for 84 patients were compared with the surgical and histologic findings. Each patient underwent three-phase bone scan with 99mTc-methylene diphos...

chondromyxoid fibroma is a rare benign cartilaginous neoplasm that mostly affects the metaphyseal region of the long bones. the tibia, small tubular bones of the foot, the distal femur and pelvis are common locations, but involvement of the vertebral bones, especially the cervical vertebra, is very rare. radiographic features show typical characteristics and this tumor often presents as a lobul...

desmoplastic fibroma (df) is a rare and locally aggressive intraosseous tumor with unknown etiology. the mandible is the common site of involvement in the maxillofacial region. however, it is believed that df can arise in any bone of the body. a wide age distribution has been reported for df occurrence, extending from birth to the sixth decade of life, with a peak incidence at 10 to 19 years of...

Background: Bone tumors are infrequently encountered disease constituting only 0.5% of the total world cancer incidence. There worldwide variations in different bone lesion and patterns cancer. Histologic evaluation is one first prerequisites evaluating any primary tumor. Methods: The present study was carried out at Gauhati Medical College hospital (GMCH), Guwahati, Assam for a period 2 years....

  Giant Cell tumors (GCT) are benign tumors with potential for aggressive behavior and capacity to metastasize. Although rarely lethal, benign bone tumors may be associated with a substantial disturbance of the local bony architecture that can be particularly troublesome in peri-articular locations. Its histogenesis remains unclear. It is characterized by a proliferation of mononuclear stromal ...

Aneurysmal bone cysts mostly occur in long bones and spine. It is relatively rare in the maxillofacial region. In this article, we present a 19-year- old woman with the complaint of swelling in the left mandibular premolar tooth. She had got antibiotic therapy after the diagnosis of dental cellulites. On the X-ray study, a well- defined unilocular bony lesion within the preapical premolar tooth...