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Fusions at the craniovertebral junction.

INTRODUCTION: The surgical management of craniovertebral junction instability in pediatric patients has unique challenges. While the indicat … matory disease such as Grisel's syndrome. Instability was seen in children with clivus chordoma and osteoblastoma. Atlantoaxial fusions were performed mainly with interlaminar rib graft fusion and more recently with the transarticular screw fixation in the older patient. In the teenager, lateral mass screws at C1 and rod fixation were made; C2 pars interarticul …

Surgical Strategy of Pediatric Benign Sacral Tumors.

BACKGROUND: Primary benign osseous tumors and tumor-like lesions at the sacrum are rare in the pediatric population and exact surgical strat … n age of 14.0±3.8 years. Nineteen patients had giant cell tumors (GCTs), 9 aneurysmal bone cysts, 5 osteoblastomas, 5 neurogenic tumors, 3 hemangiomas, 3 teratomas, 2 Langerhans cell histiocytosis, 1 chondroblastoma, 1 fibrous dysplasia, and 1 GCT of tendon sheath. We proposed our surgical plan and surgical classification for pediatric patients with sacral beni …

Aneurysmal bone cyst: concept, controversy, clinical presentation, and imaging.

The aneurysmal bone cyst is the result of a specific pathophysiologic change, which is probably the result of trauma or a tumor-induced anomalous vascular process. In approximately one third of cases, the preexisting lesion can be clearly identified. The most common of these is the giant cell tumor, which accounts for 19-39% of cases in which the preceding lesion is found. Other common precursor lesions include osteoblastoma, angioma, and chondroblastoma. Less common lesions include fibrous dysplasia, fibroxanthoma (nonossifying fibroma), chondromyxoid fibroma, solitary bone cyst, fibrous hist…

[The surgical management of sacral tumors].

OBJECTIVE: To investigate the way of sacral tumors surgical treatment. METHODS: This retrospective study included 119 cases of sacral tumors surgically treated from July, 1996 to December, 2001. The age of patients ranged from 18 to 80 years (mean 57 years), including of 72 male and 47 female. Out of the patients, there were 52 chordomas, 16 giant cell tumor, 5 neurofibroma, 23 metastases tumors, 9 myeloma, 2 osteoblastomas, 5 aneurysmal bone cysts, 3 osteosarcomas, 4 chondrosarcomas. Posterior approach and combined anterior-posterior approach were used in 83 and 36 cases respectively. Twenty…

[Treatment concepts of benign bone tumors and tumor-like bone lesions].

The indications for surgical treatment of benign bone tumors and tumor-like lesions depend on the biological activity, clinical symptoms and anatomic location of the the lesion. Clinically silent lesions ("leave me alone Lesions") lacking any scintigraphic enhancement and without danger of pathologic fracture or malign transformation only need surveillance and do not require surgery.However, tumors becoming symptomatic, displaying progression after termination of skeletal growth or radiographic signs of malignancy should be scheduled for surgical intervention. For most benign tumors intralesio

Oral and maxillofacial sclerosing epithelioid fibrosarcoma: report of five cases.

Sclerosing epithelioid fibrosarcoma (SEF) has distinctive morphology and occurs mainly in deep soft tissue of adult extremities. Approximate … al diagnosis for these tumors in this site includes sclerosing carcinoma, Ewing/PNET, osteosarcoma, osteoblastoma, and benign and malignant myoepithelial salivary gland tumors. The collagen, focal spindle cell features, HPC-like vasculature, and weak focal CD34 reactivity in one case might have raised a possible relationship between OMFRSEF and low grade malign …

Resection surgery in the treatment of vertebral tumors.

With the purpose of clarifying the limits of resection surgery (en bloc excision) for the treatment of bone tumors of the spine, the authors report the indications and results of 43 operations. This series was homogeneous in terms of oncological and surgical staging, as well as with regard to surgical method used and anaesthesiology. Three different types of surgery were performed: en bloc resection of tumors of the body (sectors 5-9 or 4-8 depending on the WBB staging system), of the posterior arch (sectors 10-3) or characterized by eccentric growth (sectors 2-5 or 8-11). The surgical margins

Radiofrequency Ablation's Effectiveness for Treating Abdominal and Thoracic Chronic Pain Syndromes: A Systematic Review of the Current Literature.

BACKGROUND: Many patients suffer from abdominal and thoracic pain syndromes secondary to numerous underlying etiologies. Chronic abdominal a … FA demonstrated notable efficacy in alleviating pain among patients with spinal osteoid osteomas or osteoblastomas, lung cancer, and pancreatic cancer. The modes of RFA used varied among the studies; they included monopolar RFA, bipolar RFA, pulsed RFA, and RFA at different temperatures. The average efficacy rate was 84% ranging from 55.8% - 100%. A total of 32 …

[Treatment of thoracolumbar tumors with total en bloc spondylectomy and the results of spinal stability reconstruction].

OBJECTIVE: To investigate the therapeutic effect of total en bloc spondylectomy (TES) for thoracolumbar tumors and the results of spinal stability reconstruction. METHODS: From January 2007 to June 2011 there were 18 patients with thoracolumbar tumors distributed in the thoracic vertebrae (n = 10) and lumbar vertebrae (n = 8). There were 7 haemangiomas, 5 giant cell tumors of bone, 1 malignant schwannoma, 1 solitary plasmocytoma, 1 neuroblastoma, 1 osteoblastoma, 1 metastatic malignant fibrous histiocytoma, and 1 metastasis of breast cancer. All the 18 patients were treated with improved TES …

Decision making in primary sacral tumors.

BACKGROUND CONTEXT: Primary tumors of the sacrum are extremely rare lesions. Their management is governed by an interplay of complex factors … ant cell tumor in seven patients, aneurysmal bone cyst in two patients, and a chondrosarcoma and an osteoblastoma in one patient each. Sixteen of these patients were analyzed. Four lesions had their upper extent at S1, six lesions had their upper extent at S2, four lesions had their upper extent at S3, and two lesions were below S3. Ten cases were treated with …

[Clinical results and the mechanism of bone healing for the repair of bone defects due to tumor resection with novel interporous TCP].

OBJECTIVE: To investigate the clinical results and the mechanism of bone healing for the repair of bone defects following tumor resection wi … eosinophilic granuloma in 12 cases, enchondroma in 13 cases, non-ossifying fibroma in 2 cases, and osteoblastoma in 3 cases. Tumor sizes varied from 1.5 cm x 1.0 cm to 7.0 cm x 5.0 cm. The plain X-ray, single photon emission computed tomography (SPECT) and histology examination were obtained at various time points after operation. The in vivo biodegradation ra …

Radiolucent lesions of the mandible: a pattern-based approach to diagnosis.

ObjectivesRadiolucent mandibular lesions seen on panoramic radiographs develop from both odontogenic and non-odontogenic structures. They represent a broad spectrum of lesions with a varying degree of malignant potential. The purpose of this review is to illustrate the characteristic imaging findings-as well as the clinical and histological features-of common and uncommon radiolucent lesions of the mandible.MethodsThis review article is based on the retrospective evaluation of 11,725 panoramic radiographs seen in our institution during the past 6 years. It provides a comprehensive, practical a

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… The necrotic area is indicated by arrows. d Histology (haematoxylin-eosin stain, original magnification 40×): necrotic bone trabeculae with inflammatory infiltrative changes in the bony marrow Osteoblastoma Osteoblastoma is a mesenchymal well-vascularised benign bone tumour with production of osteoid … The treatment of choice in osteoblastoma is surgery and recurrence is rare [ 31 ]. Some cases of spontaneous regression have been reported, especially in young patients. Fig. 13 Osteoblastoma. a OPT. b Axial CT with bone window. c Sagittal oblique contrast-enhanced fat-saturated T1-weighted image. …

Insights From the AO Spine Knowledge Forum Tumor Registries: Advancing the Understanding and Management of Primary Spine Tumors Through International Multicentric Collaboration. A Narrative Review.

Study DesignNarrative Review.ObjectivesTo summarize the scientific contributions generated from the AO Spine Knowledge Forum Tumor (AOSKFT) databases, focusing on primary spine tumors, and highlight key findings, research trends, and future directions.MethodsData from the Primary Tumor Retrospective (PT-Retro) and Primary Tumor Research Outcome Network (PTRON) registries were analyzed. The nineteen studies included were peer-reviewed manuscripts focused on primary spine tumors, excluding abstracts, book chapters, systematic reviews, and metastatic studies.ResultsThe PT-Retro registry compiled

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… (E) Axial MRI of an Osteoblastoma in the vertebral body in the lumbar region, with a partial erosion of the posterior vertebral wall. … Osteoblastoma (OBL. Figure 2E ) is the histologic cousin to OO and also reviewed in a study of PT-Retro data from 2017. Versteeg et al reviewed 102 patients with osteoblastoma treated surgically between 1991 and 2012. …

Spinal lesions: a comprehensive radiologic overview.

Spinal lesions encompass a diverse range of pathologies, including primary and secondary tumors, infectious processes, vascular malformations, traumatic injuries, and degenerative conditions, each with distinct imaging characteristics crucial for accurate diagnosis and management. Imaging plays vital roles in assessing lesion morphology, anatomical localization, and neurological impact, guiding clinical decision-making and therapeutic planning. This review systematically explores spinal lesions based on their anatomical compartments, highlighting key radiological features and providing a compr

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… Osteoid osteoma/osteoblastoma Osteoid osteoma and osteoblastoma are similar benign primary osteogenic neoplasms accounting for 15% of benign skeletal neoplasms ( 129 ). … Although MRI may overestimate the extent of osteoblastoma due to local inflammation/edema, MRI remains useful to characterize spinal cord involvement and displays osteoblastoma as hypo-isointense on T1-WI and hyper-isointense on T2-WI ( Figure 21 ) ( 129 ). Figure 21 Osteoblastoma. …

Use of percutaneous microwave ablation for the treatment of bone tumors: a retrospective study of clinical outcomes in 47 patients.

ObjectiveThe present study aimed to evaluate the short-term clinical performance and safety of percutaneous microwave ablation (MWA) techniques for the treatment of bone tumors.MethodsThis single-institution retrospective study investigated 47 cases of bone tumors treated by MWA from June 2015 to June 2018. The study included 26 patients (55.3%) with benign bone tumors and 21 patients (44.7%) with malignant bone tumors. The tumors were located in the spine or sacrum (15, 31.9%), the upper extremities (6, 12.8%), the lower extremities (17, 36.2%) and the pelvis (9, 19.1%). Outcomes regarding cl

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… Of them, six patients had osteoid osteoma, 5 had osteoblastoma, 12 had enchondroma, 2 had osteofibrous dysplasia, and 1 had a nonossifying fibroma. The remaining 21 (44.7%) had bone metastases (16 patients) or multiple myeloma (5 patients) (Table 1 ). … Based on these advantages, we successfully applied MWA in the treatment of benign bone lesions, including osteoid osteoma, osteoblastoma, enchondroma, osteofibrous dysplasia and nonossifying fibroma. …

Широкие метастазы грудной клетки и стенки грудной клетки в качестве первоначального представления о раке молочной железы: доклад по делу и обзор литературы.

Метастатическое участие костей остается наиболее распространенной формой дальнего метастаза в раке груди, главным образом из-за анатомических и функциональных характеристик грудного позвоночника, ребер и грудины. Эти структуры примечательны высоким содержанием красного костного мозга, богатой сосудистой системы и их связью с венозным сплексом Бэтсона, что способствует их раннему участию в онкологическом распространении. В некоторых случаях многочисленные метастазы в грудном скелете могут представлять собой первое и единственное клиническое проявление недиагностированного злокачественного проце

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… To begin with, primary bone tumors such as osteoblastoma and giant cell tumor predominantly occur in younger individuals and are typically solitary lesions with slow growth and a less aggressive clinical course ( 37 ). … Rib osteoblastoma as a cause of neurogenic thoracic outlet syndrome: a case report. Am J Case Rep. (2021) 22:e928548. doi: 10.12659/AJCR.928548, PMID: 30. Wang J, Ni X-Z, Yang M-L, Huang X, Hou S-M, Peng C, et al. …

Huge Pulsatile Sternal Mass.

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… Osteoblastoma. Multiple myeloma. Metastatic follicular thyroid carcinoma. Answer Metastatic follicular thyroid carcinoma. Discussion Our patient had a metastatic lesion of follicular thyroid carcinoma. Metastasis commonly occurs via hematogenous spread. … Osteoblastoma is considered as a disease of youngsters. It is a slow-growing benign bone tumor that rarely turn malignant. It is located in long bone but mostly arises at the spine causing bone pain. …

Imaging and surgical outcomes of spinal tumors in 18 dogs and one cat.

Clinical and magnetic resonance imaging (MRI) findings, histological appearances and surgical outcomes of 18 dogs and one cat with spinal tumors are presented. Medical records of the cases admitted for spinal disorders were reviewed, and cases of spinal tumors that were diagnosed by MRI and confirmed by histological examination were included in this study. T1 weighted, T2 weighted and contrast enhanced T1 weighted images were taken and interpreted to evaluate the spinal tumors. The tumors were diagnosed as: meningioma (n = 6), ependymoma (n = 1), nerve sheath tumor (n = 4), metastatic spinal t

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… Osteoid osteoma and osteoblastoma are commonly seen as benign osteogenic bone neoplasms. Histologically, these tumors resemble each other, and if the lesion is larger than 1.5 cm it is accepted as osteoblastoma, which is most frequently located in the axial skeleton in humans. … Osteoid osteoma and osteoblastoma. J Am Acad Orthop Surg. 2011;19:678–689. doi: 10.5435/00124635-201111000-00004. 2. Bagley RS. Spinal neoplasms in small animals. Vet Clin North Am Small Anim Pract. 2010;40:915–927. doi: 10.1016/j.cvsm.2010.05.010. 3. Bailey CS. …

Surgery of the tumors of the spine.

Spinal tumors encompass a heterogeneous group of primary and metastatic lesions requiring individualized management strategies based on tumor biology, patient prognosis, and mechanical stability. Decision-making frameworks, such as NOMS, SINS, and Tokuhashi score, provide structured guidance for selecting metastatic patients for surgery and defining individualized treatment strategies. En bloc resection remains the gold standard for selected primary malignant tumors, whereas separation surgery combined with stereotactic radiosurgery represents the cornerstone of modern metastatic spine disease

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… Benign tumors, such as osteoid osteoma, osteoblastoma, and aneurysmal bone cysts, are more frequent than malignant lesions but can exhibit locally aggressive behavior, particularly in the axial skeleton ( 8 , 14 , 15 ). … Figure 3 A 32-year-old female presenting with an osteoblastoma involving the C5–C6 vertebrae. (A) CT scans and (B) sagittal MRI demonstrate a typical expansile lesion with cortical involvement. …

Primary tumours of the calcaneus.

The calcaneus is a rare location for the occurrence and development of primary tumour types. Clinicians are unfamiliar with calcaneal tumour types, which may result in a delay in diagnosis or a missed diagnosis, resulting in unnecessary morbidity and amputation. Heel pain and localized swelling of the ankle are the most common symptoms. X-ray is the first choice for a tentative diagnosis of a calcaneal tumour. The final diagnosis depends on a histological examination. The treatment of calcaneal tumour types varies depending on the Enneking system. The majority of patients with benign tumours h

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… Of all ABCs, ~30–35% are present in association with another bone lesion including giant cell tumours, osteoblastomas and/or chondroblastomas ( 18 , 19 ). … Aggressive osteoblastoma of the calcaneus. Cancer. 1993;71:346–353. doi: 10.1002/1097-0142(19930115)71:2<346::AID-CNCR2820710213>3.0.CO;2-J. 78. Schujman O. Benign osteoblastoma of the calcaneus. Curr Orthop Prac. 1977;197 79. Mestdagh C, Forgeois P, LecomteHoucke M. …