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benign bone tumor

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https://www.readbyqxmd.com/read/28639531/outcome-of-bone-recycling-using-liquid-nitrogen-as-bone-reconstruction-procedure-in-malignant-and-recurrent-benign-aggressive-bone-tumour-of-distal-tibia-a-report-of-four-cases
#1
Eka Wiratnaya I Gede, Arrisna Artha Ida Ayu, Yudhi Setiawan I Gn, Wien Aryana Ign, Suyasa I Ketut, Siki Kawiyana I Ketut, Astawa Putu
Amputation still considered as primary choice of malignancy treatment in distal tibia. Bone recycling with liquid nitrogen for reconstruction following resection of malignant bone tumours offers many advantages. We presented four patients with osteosarcoma, Ewing sarcoma, adamantinoma and recurrent giant cell tumour over distal tibia. All of the patients underwent wide excision and bone recycling using liquid nitrogen as bone reconstruction. The mean functional Musculoskeletal Tumor Society (MSTS) score was 75% with no infection and local recurrent...
May 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28635991/the-papillomas-of-the-sinonasal-tract-a-comprehensive-review
#2
G Leoncini, L Zanetti
Papillomas are uncommon tumors of the sinonasal tract histologically derived from the Schneiderian membrane. Three distinctive variants are described, the exophytic, the inverting and the oncocytic types. On physical examination, their appearance varies from exophytic-fungiform seen in the exophytic variant, to polypoid-papillary in both the inverting and oncocytic variant. The presence of an asymptomatic mass or epistaxis and unilateral nasal obstruction are the typical presenting symptoms. Clinically they tend to recur and, although benign, they may erode the bone laminas by pressure, especially the inverting type, causing proptosis and other co-morbidities...
March 2017: Pathologica
https://www.readbyqxmd.com/read/28634924/chondroblastoma-in-adult-age
#3
Andrea Angelini, Mohammad Hassani, Andreas F Mavrogenis, Giulia Trovarelli, Carlo Romagnoli, Antonio Berizzi, Pietro Ruggieri
PURPOSE: Chondroblastoma (CB) is a rare benign tumor that occurs most commonly in the second decade of life. No studies on CB in adulthood have been reported. Our purposes were to report a single-institution experience on CB in adults and to discuss the clinical and imaging findings, type of treatment, oncologic and functional outcomes. PATIENTS AND METHODS: All patients diagnosed and treated for CB from 1981 to 2014 were reviewed. The main inclusion criterion was patients above their 30 years of age at diagnosis...
June 20, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28634562/a-simple-bone-cyst-in-cervical-vertebrae-of-an-adolescent-patient
#4
Adriana Bruges Boude, Lina González Vásquez, Fernando Alvarado-Gomez, María Constanza Bedoya, Andrés Rodríguez-Múnera, Luis Carlos Morales-Saenz
INTRODUCTION: Spinal simple bone cysts, also known as solitary cysts, are extremely unusual benign primary bone tumors with few cases reported in the literature. CASE PRESENTATION: Incidental Magnetic Resonance Imaging (MRI) finding of a C2 Simple bone cyst in a 13-year-old female patient is reported. Complementary studies suggested the benign nature of the lesion. Patient underwent cervical curettage followed by tumor excision. A lateral submandibular approach to the upper cervical spine was used and careful bone resection was possible with a radiofrequency assisted burr and no instrumentation or fixation was required...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28633786/metastatic-pulmonary-adenocarcinoma-of-the-talus-a-case-report
#5
Kaifeng Gan, Yandong Shen
Tumors rarely metastasize to the foot bones; however, a misdiagnosis can lead to a poor outcome. These metastatic tumors can cause foot pain and other symptoms in patients who are asymptomatic for the primary tumor. To accurately diagnose acrometastases, the attending physician must have a high index of suspicion and conduct a thorough examination and appropriate diagnostic testing. We present a rare case of metastatic pulmonary adenocarcinoma of the talus, which was initially misdiagnosed as a benign bone cyst...
July 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28633039/giant-cell-tumor-of-bone-with-pathological-evidence-of-blood-vessel-invasion
#6
Shadi Khalil, Rachana Yendala, Nicholas D'Cunha, Fred Hardwicke, Mohamed Shanshal
Giant cell tumor of bone is a rare but aggressive benign tumor that arises at the end of long tubular bones. The tumor rarely metastasizes; however, we report a case in which a giant cell tumor of bone presented with progressive pulmonary metastases. There has been no clear pathologic evidence of the definitive cause or route of metastasis. In our case, the primary tumor site was located in the left femur with pathological evidence of blood vessel invasion. The histological and pathological features of this entity are discussed in this letter to the editor...
June 15, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28621619/histopathological-prognostic-factors-of-recurrence-following-definitive-therapy-for-atypical-and-malignant-meningiomas
#7
Daniel Kim, Andrzej Niemierko, William L Hwang, Anat O Stemmer-Rachamimov, William T Curry, Fred G Barker, Robert L Martuza, Kevin S Oh, Jay S Loeffler, Helen A Shih
OBJECTIVE Patients with atypical and malignant (WHO Grade II and III) meningiomas have a worse prognosis than patients with benign (WHO Grade I) meningiomas. However, there is limited understanding of the pathological risk factors that affect long-term tumor control following combined treatment with surgery and radiation therapy. Here, the authors identify clinical and histopathological risk factors for the progression and/or recurrence (P/R) of high-grade meningiomas based on the largest series of patients with atypical and malignant meningiomas, as defined by the 2007 WHO classification...
June 16, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28603571/pes-anserinus-syndrome-caused-by-osteochondroma-in-paediatrics-a-case-series-study
#8
Akio Sakamoto, Shuichi Matsuda
INTRODUCTION: Osteochondroma is a common benign bone tumor, protruding from the underlying normal bone. Osteochondromas can cause pain depending on their location and size. The pes anserinus is located at the proximal medial side of the tibia, where the tendinous insertions of the sartorius, gracilis and semitendinosus muscles collectively attach. Pes anserinus syndrome, or anserine bursitis, is a painful condition of the pes anserinus, and is more common in adults typically with overweight females...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28593144/schwannoma-of-the-femur-a-rare-case-report
#9
Fahad Al-Lhedan
Schwannoma is a benign tumor derived from Schwann cells that cover myelinated nerve fibers (1). Among primary bone tumors, intraosseous schwannoma accounts for less than 0.2% (2). We are reporting a rare case of an 18-year-old female presented with swelling in the posterior right thigh. The patient was asymptomatic and this was incidentally discovered by her massage therapist. However, the swelling was gradually growing since then. The plain radiograph findings were suggestive of a benign bone tumor. MRI with gadolinium was performed for further evaluation but it demonstrated suspicious features as evidenced by the extra osseous enhancing soft tissue component...
September 2017: Journal of Bone Oncology
https://www.readbyqxmd.com/read/28591289/oncocytoma-of-the-lacrimal-gland-a-case-report
#10
Eduardo Muniz Fenelon, Ivelise Theresa Balby, Nathália Teles das Neves, Florêncio Figueiredo, Eliza Carla Barros Duarte, Patrick Frensel Tzelikis
Here we describe a rare case of a benign tumor in the lacrimal gland of a healthy 4-year-old girl. Mild proptosis was the only abnormality observed on clinical examination. Magnetic resonance imaging of the right orbit revealed an oval, solid, well-circumscribed, homogeneous mass extending from the lacrimal gland and measuring 2.5 × 2.3 × 1.7 cm without any evidence of invasion into adjacent bones. The lesion was surgically excised and histological analyses defined the diagnosis of oncocytoma of the lacrimal gland...
March 2017: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/28585186/tumors-of-the-hand
#11
REVIEW
Andreas F Mavrogenis, Georgios N Panagopoulos, Andrea Angelini, Jan Lesenský, Christos Vottis, Panayiotis D Megaloikonomos, Zinon T Kokkalis, Vasilios Kontogeorgakos, Pietro Ruggieri, Panayiotis J Papagelopoulos
Tumors of the hand comprise a vast array of lesions involving skin, soft tissue and bone. The majority of tumors in the hand are benign. Malignant tumors, although rare, do occur and frequently have unique characteristics in this specific anatomic location. Careful staging, histological diagnosis and treatment are essential to optimize clinical outcome. However, straightforward most of the time, hand tumor management does have pitfalls; caution is advised, as a missed or delayed diagnosis or an improperly executed biopsy may have devastating consequences...
June 5, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28583274/benign-bone-conditions-that-may-be-fdg-avid-and-mimic-malignancy
#12
REVIEW
Thomas C Kwee, John M H de Klerk, Maarten Nix, Ben G F Heggelman, Stefan V Dubois, Hugo J A Adams
Positron emission tomography with the radiotracer (18)F-fluoro-2-deoxy-d-glucose (FDG) plays an important role in the evaluation of bone pathology. However, FDG is not a cancer-specific agent, and knowledge of the differential diagnosis of benign FDG-avid bone alterations that may resemble malignancy is important for correct patient management, including the avoidance of unnecessary additional invasive tests such as bone biopsy. This review summarizes and illustrates the spectrum of benign bone conditions that may be FDG-avid and mimic malignancy, including osteomyelitis, bone lesions due to benign systemic diseases (Brown tumor, Erdheim-Chester disease, Gaucher disease, gout and other types of arthritis, Langerhans cell histiocytosis, and sarcoidosis), benign primary bone lesions (bone cysts, chondroblastoma, chondromyxoid fibroma, desmoplastic fibroma, enchondroma, giant cell tumor and granuloma, hemangioma, nonossifying fibroma, and osteoid osteoma and osteoblastoma), and a group of miscellaneous benign bone conditions (post bone marrow biopsy or harvest status, bone marrow hyperplasia, fibrous dysplasia, fractures, osteonecrosis, Paget disease of bone, particle disease, and Schmorl nodes)...
July 2017: Seminars in Nuclear Medicine
https://www.readbyqxmd.com/read/28583058/bone-grafts-substitutes-and-augments-in-benign-orthopaedic-conditions-current-concepts
#13
Alan Blank, Aldo Riesgo, Steven Gitelis, Timothy Rapp
Musculoskeletal tumors are relatively rare diagnoses made by orthopaedic surgeons. While approximately 2,500 primary bone sarcomas are diagnosed annually in the USA, the number of benign orthopaedic tumors encountered annually is far more difficult to quantify. Some studies have documented between 3% and 10% of the general population having benign bony lesions. Many of these conditions can be simply observed, while others will require surgical intervention. Surgical treatments for benign conditions range from a one-step curettage to extensive resection and reconstruction...
April 2017: Bulletin of the Hospital for Joint Diseases
https://www.readbyqxmd.com/read/28577449/thoracic-spinal-osteochondroma-a-rare-presentation-of-spinal-cord-compression
#14
David R Hansberry, Raghav Gupta, Arpan V Prabhu, Nitin Agarwal, Mougnyan Cox, Upasana Joneja, Mark T Curtis, James S Harrop, Adam E Flanders
Osteochondromas are the most common benign bone tumor typically seen in the appendicular skeleton and are rarely found in the spine. We present a case of an osteochondroma of the spine presenting with spinal cord compression. 27-year-old male presented with lower extremity weakness and paresthesia, decreased lower extremity sensation, and decreased proprioception. MRI showed a heterogeneous mass with minimal peripheral enhancement and without restricted diffusion. CT demonstrated a calcified mass extending from the left facet joint of T11-T12 with medial extension, resulting in severe central canal stenosis and cord compression...
May 29, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28569184/large-schwannoma-of-the-femur-a-common-tumor-at-an-unusual-site-a-case-report-and-review-of-the-literature
#15
Niranthi Perera, Chandu de Silva, Vasantha Perera
BACKGROUND: Schwannomas are benign nerve sheath tumors and are most frequently encountered as soft tissue tumors of peripheral nerves of the head and neck or the extensor extremities. Osseous involvement is very uncommon with fewer than 200 cases described in the world literature, the majority of which arise in the skull (including mandible), vertebrae, and sacrum. Long bone involvement is highly unusual and of the approximately 20 cases described thus far, only five have been documented to arise in the femur...
May 31, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28559524/isolated-lytic-bone-lesion-in-tuberculosis
#16
Mansoor C Abdulla
Causes of lytic bone lesions include benign, malignant, and infectious processes. Lytic lesions due to tuberculosis (TB) may closely mimic those due to tumors such as bone cyst, osteoblastoma, osteosarcoma, and metastatic bone disease radiologically. Histopathology and culture help in definitive diagnosis and prompt management. We describe an immunocompetent patient with isolated lytic bone lesion in the distal part of ulna due to TB to make the readers aware of such unusual presentations of TB.
April 2017: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28558942/bone-margin-analysis-for-benign-odontogenic-tumors
#17
REVIEW
Eric Ringer, Antonia Kolokythas
With the potential exception of the case of ameloblastoma, information relevant to the exact tumor-bone interface and extent of bone invasion by the commonly encountered odontogenic tumors is lacking. These tumors are rare. Treatment rendered varies significantly. Although commonly accepted practices are recommended, scientific evidence is relatively lacking. Prospective multicenter studies from tertiary treatment centers are required for evidence-based guidelines. Until studies are available, the proposed linear bone resection margin for odontogenic tumors and the evaluation of its adequacy in tumor eradication will be based on the limited data available...
May 27, 2017: Oral and Maxillofacial Surgery Clinics of North America
https://www.readbyqxmd.com/read/28557595/chondroblastoma-an-update
#18
Wenqian Chen, Lisa M DiFrancesco
Chondroblastoma is a rare primary bone tumor of young people that typically arises in the ends of the long bones. Radiologic investigations show a small, circumscribed, lytic lesion. The tumor is characterized histologically by the proliferation of chondroblasts along with areas of mature cartilage, giant cells, and occasionally, secondary aneurysmal bone cyst formation. Chondroblastoma, however, may also present with atypical features, such as prominent hemosiderin deposition, numerous giant cells, or the presence of a large aneurysmal bone cyst component...
June 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28556483/drug-sensitivity-and-resistance-testing-identifies-plk1-inhibitors-and-gemcitabine-as-potent-drugs-for-malignant-peripheral-nerve-sheath-tumors-mpnst
#19
Matthias Kolberg, Jarle Bruun, Astrid Murumägi, John P Mpindi, Christian H Bergsland, Maren Høland, Ina A Eilertsen, Stine A Danielsen, Olli Kallioniemi, Ragnhild A Lothe
Patients with malignant peripheral nerve sheath tumor (MPNST), a rare soft tissue cancer associated with loss of the tumor suppressor neurofibromin (NF1), have poor prognosis and typically respond poorly to adjuvant therapy. We evaluated the effect of 299 clinical and investigational compounds on seven MPNST cell lines, two primary cultures of human Schwann cells, and five normal bone marrow aspirates, to identify potent drugs for MPNST treatment with few side effects. Top hits included Polo-like kinase 1 (PLK1) inhibitors (volasertib and BI2536) and the fluoronucleoside gemcitabine, which were validated in orthogonal assays measuring viability, cytotoxicity and apoptosis...
May 29, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28553393/osteoblastoma-mimicking-an-idiopathic-intracranial-hypertension-syndrome
#20
Alessandro Boaro, Elisabetta Marton, Grazia Marina Mazzucco, Pierluigi Longatti
Osteoblastomas are rare, benign bone tumors mainly arising from the long bones and the posterior vertebral arches. Skull localizations account for approximately 15% of cases. A total amount of thirty cases involving the temporal bone are reported in the literature. Clinical presentation of temporal osteoblastomas often includes local pain and swelling, while 7(th) and 8(th) cranial nerve impairment is rare. We report the novel finding of increase intracranial pressure syndrome secondary to dominant transverse-sigmoid sinus junction compression caused by a small temporal bone osteoblastoma...
January 2017: Journal of Pediatric Neurosciences
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