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Fibrous dysplasia

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https://www.readbyqxmd.com/read/28533645/image-findings-of-polyostotic-fibrous-dysplasia-mimicking-metastasis-in-f-18-fdg-positron-emission-tomography-computed-tomography
#1
Koramadai Karuppusamy Kamaleshwaran, Jephy Joseph, Radhakrishnan Kalarikal, Ajit Sugunan Shinto
Fibrous dysplasia (FD) of the bone is characterized by the medullary cavity of bones becoming filled with fibrous tissue, and its etiology remains unknown. It is usually asymptomatic and found incidentally on imaging studies that are performed for other purposes. FD may closely mimic the appearance of bony metastatic disease on radiological examinations. We report the case of a 45-year-old female patient, which appeared to have multiple bone lesions on initial workup images. Subsequently, the bone lesions that showed increased FDG uptake on PET/CT in right femur and tibia were identified as FD...
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28533644/atypical-parathyroid-adenoma-with-multiple-brown-tumors-as-initial-presentation-a-rare-entity
#2
V S Krishna Mohan, Manishi L Narayan, Arun Mukka, Bharath Bachimanchi, Amit Kumar Chowhan, B Vijayalakshmi Devi, Suresh Vaikkakara, Alok Sachan
Brown tumors seen in hyperparathyroidism are rare, non-neoplastic lesions because of abnormal bone metabolism, and they can mimic benign bone tumors or malignancy. Although biopsy is considered as the gold standard for diagnosis, it can be inconclusive. As the diagnosis of brown tumors is often challenging, a high index of suspicion is essential for diagnosis. We present a case of 21-year-old woman who presented with multiple painful bony lesions, which were initially misdiagnosed as fibrous dysplasia. Due to persistent bone pain and deterioration in her physical mobility, she was referred to tertiary care centre...
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28488027/fibrous-dysplasia-mimicking-bone-metastasis-on-68-ga-psma-pet-mri
#3
Liesbeth De Coster, Raf Sciot, Wouter Everaerts, Olivier Gheysens, Raf Verscuren, Christophe M Deroose, Steven Pans, Koen Van Laere, Karolien E Goffin
No abstract text is available yet for this article.
May 9, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28481787/evaluation-of-practical-interpretation-hurdles-in-68ga-psma-pet-ct-in-55-patients-physiological-tracer-distribution-and-incidental-tracer-uptake
#4
Julian Kirchner, Benedikt Michael Schaarschmidt, Lino Morris Sawicki, Philipp Heusch, Hubertus Hautzel, Johannes Ermert, Robert Rabenalt, Gerald Antoch, Christian Buchbender
PURPOSE: To investigate the physiologic Ga-PSMA distribution and evaluate focal or diffuse radiotracer uptake in nonprostate cancer malignancies and in incidental findings. METHODS: Ga-PSMA PET/CT scans in 55 men performed for prostate cancer (49) or renal cell carcinoma (6) staging were analyzed retrospectively. Two radiologists evaluated the datasets in 2 reading sessions. First, physiological Ga-PSMA uptake was evaluated. Second, scans were analyzed for incidental uptake...
May 6, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28479714/nonfamilial-cherubism-a-case-report-and-review-of-literature
#5
Revati Deshmukh, Samir Joshi, Priya Nimish Deo
Cherubism is a rare hereditary developmental condition of the jaws and generally inherited as an autosomal dominant trait. It is also known as familial fibrous dysplasia of the jaws, familial multilocular cystic disease and hereditary fibrous dysplasia of the jaws. The gene for cherubism is mapped to chromosome 4p16.3 may lead to pathologic activation of osteoclasts and disruption of jaw morphogenesis. The lesion usually appears between 2 and 5 years shows a predilection for the mandible and causes a bilateral swelling giving rise to a cherubic chubby appearance...
January 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28477224/bone-tumors-of-the-pediatric-foot-imaging-appearances
#6
Pablo Caro-Domínguez, Oscar M Navarro
Tumors of the foot are rare in children. This review illustrates radiographic, CT and MR imaging findings of foot bone tumors in children based on all cases presented in a tertiary pediatric hospital during the 15-year period of 1999-2014. This search revealed 155 tumors of the foot, 72 of the bones and 83 of the soft tissues. Osteochondroma, bone cyst and fibrous dysplasia were the most frequent benign bone lesions. Ewing sarcoma was the most common malignant osseous tumor. Some tumors showed higher prevalence in certain age ranges and others showed predilection for specific bones...
May 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28468170/might-trauma-be-a-triggering-factor-for-craniofacial-fibrous-dysplasia
#7
Mehmet Onur Yüksel, Mehmet Sabri Gürbüz, Hilmi Onder Okay, Mehmet Esref Kabalar
Fibrous dysplasia (FD) is a rare, benign disease of unclear etiology where normal bone is replaced with abnormal fibrous and weak osseous tissue. Any bone of the skeleton might be involved but skull is one of the most commonly affected sites. Fibrous dysplasia is known to be caused by a genetic mutation leading to inappropriate proliferation and differentiation of osteoblastic cells. However; it is not known whether any triggering factor exists which might contribute to this genetic mutation. The authors postulated that trauma might be a triggering factor for this disease...
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28468152/giant-hemifacial-fibrous-dysplasia-functional-treatment-and-place-of-pamidronate
#8
Jean-Thomas Bachelet, Leonor Costa Mendes, Clarence Delafond, Thomas Barba, Arnaud Gleizal, Christian Paulus
The authors report the case of a 9-year-old child with severe form of hemifacial fibrous dysplasia. The authors review the pathology of this treatment modality through the case description and detail the place of pamidronate in the treatment of fibrous dysplasia.
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28454393/diagnosing-and-discriminating-between-primary-and-secondary-aneurysmal-bone-cysts
#9
Hiromi Sasaki, Satoshi Nagano, Hirofumi Shimada, Masahiro Yokouchi, Takao Setoguchi, Yasuhiro Ishidou, Osamu Kunigou, Kosuke Maehara, Setsuro Komiya
Aneurysmal bone cysts (ABCs) are benign bony lesions frequently accompanied by multiple cystic lesions and aggressive bone destruction. They are relatively rare lesions, representing only 1% of bone tumors. The pathogenesis of ABCs has yet to be elucidated. In the present study, a series of 22 cases of primary and secondary ABC from patients treated in Department of Orthopedic Surgery, Kagoshima University Hospital (Kagoshima, Japan) from 2001-2015 were retrospectively analyzed. The average age at the time of diagnosis of primary ABC was 17...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28451704/-benign-tumours-and-tumour-like-lesions-of-the-bone-general-treatment-principles
#10
REVIEW
H Fritzsche, K-D Schaser, C Hofbauer
BACKGROUND: Benign bone lesions are much more common than malignant lesions. Some benign bone tumors have a characteristic and typical radiographic appearance, while others are more challenging. Therapy of benign bone tumors differs greatly. While the majority of benign bone tumors do not require surgical therapy, other specific lesions, e. g. aneurysmal bone cysts or giant cell tumors (GCT) of the bone require surgery due to their locally aggressive behavior. DIAGNOSTICS: The major challenge for the radiologist and/or pathologist is the differentiation between a benign and low-grade malignant lesion (e...
April 27, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28449700/determinants-of-impaired-quality-of-life-in-patients-with-fibrous-dysplasia
#11
Bas C J Majoor, Cornelie D Andela, Jens Bruggemann, Michiel A J van de Sande, Ad A Kaptein, Neveen A T Hamdy, P D Sander Dijkstra, Natasha M Appelman-Dijkstra
BACKGROUND: Fibrous dysplasia is a rare bone disorder, commonly associated with pain, deformity and fractures, which may significantly impact on quality of life. In this study we evaluate quality of life in patients with fibrous dysplasia using the Short Form-36 and the Brief Pain Inventory questionnaires. Data were compared with those of the general Dutch population. RESULTS: Out of 138 patients from a cohort of 255 patients with fibrous dysplasia that were sent questionnaires assessing quality of life and pain, the response rate was 70...
April 27, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28439311/treatment-of-shepherd-s-crook-deformity-in-patients-with-polyostotic-fibrous-dysplasia-using-a-new-type-of-custom-made-retrograde-intramedullary-nail-a-technical-note
#12
F Hefti, L Donnan, A H Krieg
AIMS: The severe form of coxa vara, the 'shepherd's crook deformity', is always a consequence of a locally extensive form of polyostotic fibrous dysplasia (or McCune-Albright syndrome). Treatment of this deformity is a challenge. The soft bone does not tolerate any implant that depends on the stability of the cortical bone (like plates or external fixators). Intramedullary nails are the most appropriate implants for stabilisation, but if they are inserted from the greater trochanter, they cannot correct the varus deformity enough...
2017: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/28432392/rare-appearance-rare-location-and-unusual-patient-age-report-of-osteolytic-fibrous-dysplasia-in-the-temporal-bone-of-a%C3%A2-52-year-old-patient
#13
Viktor Pineker, Ewerton Marques Maggio, Alexander Huber, Athina Pangalu, Antonios Valavanis, Sebastian Winklhofer
No abstract text is available yet for this article.
April 21, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28391267/a-clinical-and-radiological-approach-to-the-management-of-benign-mesenchymal-sinonasal-tumors
#14
Lukas Anschuetz, Melanie Buchwalder, Matthias Dettmer, Marco D Caversaccio, Franca Wagner
PURPOSE: Benign mesenchymal sinonasal neoplasms (BMSN) are rare and histologically heterogeneous. Differential diagnosis, appropriate management, and outcome are still a matter of debate. The aim of this study is to provide evidence for further refinement of assessment and treatment in the future. PROCEDURES: We retrospectively reviewed data on 93 patients with neuroradiologically verified BMSN treated at our university reference center during the past 22 years...
April 8, 2017: ORL; Journal for Oto-rhino-laryngology and its related Specialties
https://www.readbyqxmd.com/read/28376635/intraosseous-venous-malformations-of-the-zygoma-report-of-4-cases-and-literature-review
#15
Xiuling Huang, Jingang An, Yi Zhang, Zhigang Cai
OBJECTIVES: As intraosseous venous malformations (IVMs) of the zygoma are very rare and clinical features are not typical, a correct preoperative diagnosis may be difficult to make. This study presents 4 cases of IVM of the zygoma and gives a review of their clinical manifestations, radiographic features, preoperative diagnosis, and differentials. METHODS: The report of 4 cases was performed with an average 6-year follow-up. Medical records including clinical, radiographic, and histopathological information were reviewed...
June 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/28346248/68ga-psma-pet-ct-in-osteosarcoma-in-fibrous-dysplasia
#16
Arun Sasikumar, Ajith Joy, M R A Pillai, Tony M Alex, Geetha Narayanan
Fibrous dysplasia (FD) is a benign bone lesion with a rare but potential for malignant transformation. Neither Tc-MDP nor F-FDG PET/CT can differentiate between FD and areas of malignant transformation in FD. We described a case of osteosarcoma developing in FD with selective uptake of tracer in malignant transformation areas demonstrated on a Ga-PSMA PET/CT scan. Our case highlights the ability of Ga-PSMA PET/CT to map tumor neoangiogenesis in osteosarcoma arising in FD, which can have potential implications in prognostication, possibility of antiangiogenesis-based therapeutic options, and in response assessment following chemotherapy...
June 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28339091/fibulin-4-promotes-osteosarcoma-invasion-and-metastasis-by-inducing-epithelial-to-mesenchymal-transition-via-the-pi3k-akt-mtor-pathway
#17
Dong Zhang, Songgang Wang, Jie Chen, Haitao Liu, Jinfa Lu, Hua Jiang, Aimin Huang, Yunzhen Chen
This study explored the role of fibulin-4 in osteosarcoma progression and the possible signaling pathway involved. Fibulin-4 mRNA and protein expression in normal tissue, benign fibrous dysplasia, osteosarcoma, osteosarcoma cell lines, the normal osteoblastic cell line hFOB, and different invasive subclones were evaluated by immunohistochemistry (IHC) or immunocytochemistry (ICC) and real-time reverse transcriptase-polymerase chain reaction (real-time qRT-PCR). Using in vitro functional assays, we analyzed the invasive and proliferative abilities of different osteosarcoma cell lines and subclones with differing invasive potential...
May 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28334704/combining-real-time-cold-and-mama-pcr-taqman-techniques-to-detect-and-quantify-r201-gnas-mutations-in-the-mccune-albright-syndrome%C3%A2
#18
Luisa de Sanctis, Ilaria Galliano, Paola Montanari, Patrizia Matarazzo, Daniele Tessaris, Massimiliano Bergallo
BACKGROUND/AIM: The McCune-Albright syndrome (MAS) is a potentially severe disorder hallmarked by fibrous bone dysplasia, café-au-lait skin spots, and endocrine hyperfunction. It is caused by postzygotic activating mutations at the R201 codon of the GNAS gene, leading to a state of somatic mosaicism. Our aim was to improve the mutation detection rate and to quantify the presence of R201 GNAS mutations in different DNA samples from MAS patients. METHODS: Real-time COLD- and MAMA-PCR TaqMan techniques were combined to search for R201 mutations in the DNA of blood or affected tissues from 16 previously molecularly characterized MAS patients, from a further 84 subjects with MAS signs who were R201 negative at RFLP analysis, and from 36 controls...
March 23, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28330577/-custom-made-implant-for-complex-facial-reconstruction-a-case-of-total-replacement-of-temporo-mandibular-joint-zygomatic-arch-and-malar-bone
#19
D Guillier, V Moris, L-A See, M Girodon, B-L Wajszczak, N Zwetyenga
INTRODUCTION: Total prosthetic replacement of the temporo-mandibular joint (TMJ) has become a common procedure, but it is usually limited to the TMJ itself. We report about one case of complex prosthetic joint reconstruction extending to the neighbouring bony structures. CASE: A 57-year-old patient, operated several times for a cranio-facial fibrous dysplasia, presented with a recurring TMJ ankylosis and a complexe latero-facial bone loss on the right side. We performed a reconstruction procedure including the TMJ, the zygomatic arch and the malar bone by mean of custom made composite prosthesis (chrome-cobalt-molybdenum-titanium and polyethylene)...
February 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28302454/craniofacial-fibrous-dysplasia-a-10-case-series
#20
A Couturier, O Aumaître, L Gilain, B Jean, T Mom, M André
OBJECTIVES: Fibrous dysplasia of bone is a rare sporadic benign congenital condition in which normal cancellous bone is replaced by fibro-osseous tissue with immature osteogenesis. Sarcomatous transformation is exceptional. Lesions may involve one bone (monostotic) or several (polyostotic). Fibrous dysplasia may be associated with café-au-lait skin macules and endocrinopathy in McCune-Albright syndrome, or with myxoma in Mazabraud's syndrome. METHODS: We report ten cases of patients followed up for craniofacial fibrous dysplasia in our center between 2010 and 2015...
March 14, 2017: European Annals of Otorhinolaryngology, Head and Neck Diseases
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