CONTEXT Parathyroidectomy is the only effective therapy for osteitis fibrosa cystica in hyperparathyroidism. OBJECTIVE The objective of this study was to describe the changes of skeletal and nonskeletal manifestations in a patient with hyperparathyroidism and renal failure after oral vitamin D therapy. DESIGN This was a descriptive case report. SETTING The patient was followed up in a ref...

A 46-year-old male patient with swelling and pain in the right chest wall was admitted to our clinic. The lesion originating from the second, third and fourth ribs was resected en bloc via right thoracotomy (Figs 1 and 2). The defect was closed using-prolene mesh. Pathological examination revealed a fibrous dysplasia. Figure 1: Axial and coronal CT images showing the lesion originating from the...

MR, CT, and angiography were performed on a 49-year-old woman with hereditary hemorrhagic telangiectasia who had acute onset of left-sided hearing loss. The patient previously had had a left occipital craniotomy, and subsequently, diffuse calvarial hemangioma had been diagnosed. Physical examination at the time of admission revealed bilateral deficits of the seventh and eighth cranial nerves. M...

metastatic survey of the patients with known primary malignancies with bone scan is one of the most common studies in nuclear medicine. unfortunately the conventional planar bone scan has a very low specificity for differentiating benign from malignant lesions especially in the spinal column. in this study, we compared the specificity of spect imaging and conventional planar bone scan. we studi...

An 8-year-old girl had acute onset of blurred vision, proptosis, and lateral and vertical gaze palsies on the right. CT and MR examinations showed an expansile mass involving the greater wing of the right sphenoid bone. Pathologic analysis of the surgical specimen revealed a capillary hemangioma. The lesion was inhomogeneous but predominantly isointense with gray matter on T1-weighted images. O...

Giant cell tumor of the small bones, particularly the carpal bones of the hand, is exceedingly rare. We present a case report of giant cell tumor of the capitate in a 24 year-old female with 10 years postoperative follow-up. Although carpal bones are extremely unusual location, orthopedic surgeons should always keep in mind that differential diagnosis must include giant cell tumor of bone whene...

Schwannoma is a benign nerve sheath neoplasm which mainly locates in the soft tissue but rarely originates in the bone. Intraosseous Schwannoma is prone to occur in the mandible and sacrum, while its occurrence is seldom seen in the calcaneus. Herein we report an 18-year-old man with a chief complaint of pain in the right heel. Radiographs revealed a huge, osteolytic, and expansile lesion with ...

We describe a schwannoma located in the mid-diaphyseal region of the fibula of a 14-year-old boy. Radiologically this was an expansile, lytic, globular and trabeculated lesion. MRI showed a narrow transition zone with a break in the cortex and adjacent tissue oedema. Differential diagnosis included schwannoma, fibrous dysplasia, giant cell tumour and aneurysmal bone cyst. The tumour was excised...

Aneurysmal bone cyst (ABC) is a benign expansile bone tumor, most commonly involving the medulla of long bones. ABC rarely arises within the cortex or in the subperiosteal region, radiographically mimicking other conditions, in particular surface osteosarcomathat is low-grade in nature and may go secondary ABC changes, and telangiectatic osteosarcoma. Both of these are sometimes mistaken micros...