osteoblastoma/edema

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Activation of the arachidonic acid metabolic pathway and induction of sleep disturbance by sacral osteoblastoma: A case report.

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Osteoblastomas are benign bone tumors that produce prostaglandin and promote inflammation. The aim of the present study was to describe the clinical and radiological characteristics of a pediatric osteoblastoma case over an 8-month postoperative follow-up. The case involved an 11-year-old female

Concurrent osteochondroma and osteoblastoma of the proximal humeral shaft.

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We present what we believe is the first reported case of synchronous osteochondroma and osteoblastoma, occurring in the proximal humerus of a young man. A 15-year-old boy presented with a painful left arm mass for 3 months. A firm mass was palpable in the proximal medial arm, and he had mild triceps

Partial ablation of benign osteoblastoma: a case report.

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Osteoblastoma is a rare bone tumor involving spine, long bones and infrequently skull, especially with sinus localization. The orbital localization of the neoplasia may cause axial or paraxial exophthalmus, vertical diplopia, pulsatile orbital pain, soft tissue swelling with skin erythema. In

MRI patterns indicate treatment success and tumor relapse following radiofrequency ablation of osteoblastoma.

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Purpose: To explore the typical magnetic resonance imaging (MRI) pattern of osteoblastoma (OB) after radiofrequency ablation (RFA) treatment and to identify signs indicating treatment success or relapse.Materials and methods: Forty-four follow-up MRI examinations of 15 patients with OB

Occipitoparietal benign osteoblastoma: should entire lesion be resected when magnetic resonance images reveal wide abnormal signal intensity in surrounding bone marrow?

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BACKGROUND Benign osteoblastoma is an uncommon primary bone tumor that usually affects long bones and the vertebral column. Its occurrence in the calvarium is rare. Despite the characteristically benign nomenclature of osteoblastoma, it sometimes recurs with the possibility of transforming into a

Osteoblastoma of the spine with discordant magnetic resonance imaging and computed tomography imaging features in a child.

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METHODS Case report. OBJECTIVE To describe the magnetic resonance imaging (MRI) and computed tomography (CT) findings of spinal osteoblastoma and illustrate how MRI features can be potentially misleading. BACKGROUND Osteoblastoma is a rare benign tumor of bone that is known to incite a localized

Edema Surrounding Benign Tumors and Tumor-Like Lesions.

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To explore the incidence and significance of intra- and extra-osseous edema associated with benign tumors and tumor-like diseases.

Methods

Magnetic resonance imaging (MRI) data from 300 benign osseous tumors and tumor-like diseases diagnosed by

Percutaneous cryoablation of osteoblastoma in the proximal femur.

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A 37-year-old man presented with a 2-year history of left hip pain. Pretherapeutic imaging demonstrated a 4 cm osteoblastoma located in the intertrochanteric region of the proximal femur, surrounded by extensive bone marrow edema. After multidisciplinary meeting, percutaneous cryoablation was

Prostaglandin levels of primary bone tumor tissues correlate with peritumoral edema demonstrated by magnetic resonance imaging.

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BACKGROUND Several reports have shown peritumoral edema accompanying primary bone tumors demonstrated by magnetic resonance imaging (MRI). However, the mechanism of this inflammatory reaction is still unclear. The authors postulated that the reaction was caused by some chemical mediators including

Osteoblastoma: clinical and radiologic findings in 98 new cases.

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The data on 98 new patients with osteoblastoma were studied. The clinical features of pain, scoliosis, and neurologic deficit were largely consistent with those in previous reports. Osteoblastoma is usually a lytic lesion originating in the medulla of bones with matrix ossification and mild

Pure Endoscopic Surgery via Subtemporal Extradural Keyhole Approach for Middle Cranial Fossa Tumors.

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Extradural subtemporal keyhole approach could provide adequate removal for some specific middle skull base tumors. The combination of endoscopy and keyhole technique might further help to minimize the complications and provide optimal surgical visualization. Here, a series of attempts

L5 Osteoid Osteoma Treated with Partial Laminectomy and Cement Augmentation.

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Osteoid osteoma is a benign primary bone tumor of unknown etiology that occurs most commonly in males during adolescence and early adulthood. Osteoid osteoma affects the spine in 20% of cases, and may cause spinal deformity, stiffness, and pain that may sometimes be worst at night. We present a

Vertebral osteoid osteoma masquerading as a malignant bone or soft-tissue tumor on MRI.

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OBJECTIVE Four pediatric patients were sent to our institution with the diagnosis of soft-tissue/malignant bone tumor. In all cases an MRI was the initial study performed for neck or back pain. All were surgically proven to have an osteoid osteoma/osteoblastoma (OO) as a final diagnosis. The MRI

The role of MR imaging in scaphoid disorders.

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The scaphoid bone of the wrist is one of the most commonly fractured bones in the body. Due to its importance in the biomechanics and functionality of the wrist, it is important to depict and characterize the type of injury. Plain radiographs and scintigraphy may fail to disclose the type and

Radiologic diagnosis of osteoid osteoma: from simple to challenging findings.

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Osteoid osteoma is characterized by an intracortical nidus with a variable amount of calcification, as well as cortical thickening, sclerosis, and bone marrow edema. When these findings are present, a diagnosis of osteoid osteoma is easily made. However, osteoid osteoma may display imaging findings

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