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Malignant giant cell tumor

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https://www.readbyqxmd.com/read/29202683/successful-use-of-snare-electrocautery-via-flexible-fiberoptic-bronchoscopy-for-removal-of-an-endobronchial-hamartoma-causing-chronic-lung-atelectasis-and-mimicking-malignancy
#1
Chao Liu, Jia-Jia Wang, Ye-Han Zhu, Cheng Chen
We present a rare case of giant endobronchial hamartoma coexisting with lung atelectasis for more than 3 years. The small specimen initially biopsied via bronchoscope did not reveal tissue features, but some features were suspicious for squamous cell carcinoma. The lesion was removed completely using snare electrocautery combined with argon plasma coagulation via flexible fiberoptic bronchoscopy. The patient made a satisfactory recovery, and a pathological diagnosis was made. This could be a useful option in selected endobronchial tumors...
December 2017: Therapeutic Advances in Respiratory Disease
https://www.readbyqxmd.com/read/29181359/articular-reconstruction-using-subchondral-cementation-and-threaded-kirschner-wires-in-giant-cell-tumor-a-novel-technique
#2
Padmanabh H Vora, Rameez Musa, Neel M Bhavsar, Darshan Shah
Introduction: Giant Cell Tumor(GCT) is one of an infrequently encountered tumor by orthopaedic surgeons in clinical practice. It is described as 'locally malignant' tumor found in epimetaphyseal region of long bones, peculiarly around knee. We present a case of a solitary, benign Campanacci Grade 2 GCT in right lateral femoral condyle in 38 year old female and our treatment. Case Report: A 38 year old female presented to our outpatient department with chief complaint of constant, moderate pain in right knee increasing in duration since 3 months...
July 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/29160138/a-case-of-dedifferentiated-chondrosarcoma-arising-in-the-cricoid-cartilage-that-mimicked-an-aneurysmal-bone-cyst
#3
Lixiao Chen, Ziwei Yu, Rui Jiang, Pin Dong, Bin Shen, Yu Li
Dedifferentiated chondrosarcoma of the larynx is a rare and highly malignant tumor. We present the report of a 59-year-old man with dedifferentiated laryngeal chondrosarcoma, which was difficult to diagnose even under microscopic examination. The original diagnosis was an aneurysmal bone cyst, and the final diagnosis was established only after careful consideration of the imaging, surgical, and microscopic findings. In clinical practice, there are many similarities between dedifferentiated chondrosarcoma and aneurysmal bone cysts...
November 21, 2017: Postgraduate Medicine
https://www.readbyqxmd.com/read/29136686/-clinicopathologic-and-molecular-characteristics-of-malignant-gastrointestinal-neuroectodermal-tumors
#4
M Zhao, T W Zhao, J Ma, C Y Wu, L Chen, G Q Ru, X L He
Objective: To investigate the clinicopathologic and molecular characteristics, diagnostic, differential diagnostic and prognostic features of malignant gastrointestinal neuroectodermal tumor. Methods: Two cases of malignant gastrointestinal neuroectodermal tumor were retrieved; the clinical and radiologic features, histomorphology, immunophenotype, molecular genetics and prognosis were analyzed and the relevant literature reviewed. Results: Case 1 was a 57-year-old male, presented with recurrent abdominal pain and melena...
November 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29123414/low-grade-central-osteosarcoma-in-proximal-humerus-a-rare-entity
#5
Fan Tang, Li Min, Yong Zhou, Yi Luo, Chongqi Tu
Low-grade central osteosarcoma is a rare subtype of tumor with low-grade malignancy. Currently, wide resection with negative resection margin is the standard treatment for this disease. The role of neoadjuvant chemotherapy in low-grade central osteosarcoma was controversial and was mostly considered for tumors containing high-grade focal areas. Local tumor recurrences often exhibited a tumor with higher histologic grade or differentiation with the potential for metastases. In low-grade central osteosarcoma, timely wide resection after definite diagnosis can result in 5-year survival for almost 90%...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29114282/multicompartmental-primary-spinal-extramedullary-tumors-value-of-an-interdisciplinary-approach
#6
Guruprasad Bettaswamy, Paurush Ambesh, Raj Kumar, Rabi Narayan Sahu, Kuntal Kanti Das, Awadhesh Kumar Jaiswal, Arun Kumar Srivastava, Sanjay Behari
Background: Primary extramedullary tumors involving multiple compartments around the spine are a technically demanding group of tumors whose extent traverses beyond the normal confines of those anatomical regions which fall in the common domain of neurosurgeons. In the following series, we present 12 patients who were diagnosed with primary spinal extramedullary tumors with multicompartmental extension, and whose surgical management was facilitated by a combined multidisciplinary approach involving surgeons of other superspecialties...
October 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29107018/flubendazole-induces-mitotic-catastrophe-and-apoptosis-in-melanoma-cells
#7
K Čáňová, L Rozkydalová, D Vokurková, E Rudolf
Flubendazole (FLU) is a widely used anthelmintic drug belonging to benzimidazole group. Recently, several studies have been published demonstrating its potential to inhibit growth of various tumor cells including those derived from colorectal cancer, breast cancer or leukemia via several mechanisms. In the present study we have investigated cytotoxic effects of FLU on malignant melanoma using A-375, BOWES and RPMI-7951 cell lines representing diverse melanoma molecular types. In all three cell lines, FLU inhibited cell growth and proliferation and disrupted microtubule structure and function which was accompanied by dramatic changes in cellular morphology...
October 26, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/29106748/solitary-fibrous-tumor-of-the-female-genital-tract-a-clinicopathologic-analysis-of-25-cases
#8
Eric J Yang, Brooke E Howitt, Christopher Dm Fletcher, Marisa R Nucci
AIMS: Solitary fibrous tumor (SFT) is an uncommon spindle cell neoplasm of fibroblastic origin, first described as a tumor of the pleura and now well established at extrapleural sites. However, SFT in the female genital tract is rare and therefore not fully characterized. MATERIAL AND RESULTS: We describe a series of 25 SFTs arising throughout the gynecologic tract, including vulva (14 cases), vagina (1), cervix (1), uterus (6), ovary (2) and fallopian tube (1)...
November 6, 2017: Histopathology
https://www.readbyqxmd.com/read/29080443/hepatic-sarcoidosis-mimicking-cholangiocellular-carcinoma-a-case-report-and-literature-review
#9
Ryoichi Miyamoto, Naoki Sano, Sosuke Tadano, Satoshi Inagawa, Shinya Adachi, Masayoshi Yamamoto
INTRODUCTION: Sarcoidosis is a multisystem disease characterized by the presence of non-caseating granulomas in affected organs. Almost 70% of patients with a sarcoidosis reaction have hepatic involvement. However, evidence-based clinical management or treatment strategies for hepatic sarcoidosis are poorly defined. Here, we present a case of a resected hepatic sarcoidosis patient. Additionally, we review the relevant hepatic sarcoidosis literature and discuss the clinical management of hepatic sarcoidosis...
October 25, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29062454/laparoscopic-total-gastrectomy-for-a-giant-gastrointestinal-stromal-tumor-gist-with-acute-massive-gastrointestinal-bleeding-a-case-report
#10
Mohammad Kermansaravi, Samaneh Rokhgireh, Sattar Darabi, Abdolreza Pazouki
Gastrointestinal stromal tumors (GISTs) include 80% of gastrointestinal mesenchymal tumors that originate from interstitial Cajal cells and include 0.1-3% of GI malignancies, and the stomach is the most commonly involved organ. The only potentially curative treatment is surgical resection with clear margins. Although laparoscopic resection of small GISTs is a standard treatment, there is controversy about laparoscopic surgical resection for large and giant GISTs. A 52-year-old woman, a known case of large GIST of the stomach that was under neoadjuvant imatinib therapy, was admitted to the emergency department due to acute massive gastrointestinal bleeding (GIB)...
September 2017: Wideochirurgia i Inne Techniki Mało Inwazyjne, Videosurgery and Other Miniinvasive Techniques
https://www.readbyqxmd.com/read/29050082/-malignant-giant-cell-tumor-of-tendon-sheath-in-finger-report-of-a-case
#11
M Zhao, Y J Yan, G Q Ru, X L He
No abstract text is available yet for this article.
October 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29048579/development-of-high-grade-osteosarcoma-in-a-patient-with-recurrent-giant-cell-tumor-of-the-ischium-while-receiving-treatment-with-denosumab
#12
Shinji Tsukamoto, Alberto Righi, Daniel Vanel, Kanya Honoki, Davide Maria Donati, Costantino Errani
Malignant transformation of giant cell tumor of bone (GCTB) without radiotherapy exposure is exceptionally rare, occurring in less than 1% of GCTBs. The safety and efficacy of denosumab in patients with GCTB was recently reported. We herein report a case of a benign recurrent GCTB with an H3F3A mutation that underwent secondary malignant transformation during treatment with denosumab. A 29-year-old woman underwent curettage of a GCTB of the left ischium in 2005. Ten years after the first surgery, the GCTB recurred locally...
November 1, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29038849/malignant-bone-tumors-other-than-ewing-s-clinical-practice-guidelines-for-diagnosis-treatment-and-follow-up-by-spanish-group-for-research-on-sarcomas-geis
#13
Andrés Redondo, Silvia Bagué, Daniel Bernabeu, Eduardo Ortiz-Cruz, Claudia Valverde, Rosa Alvarez, Javier Martinez-Trufero, Jose A Lopez-Martin, Raquel Correa, Josefina Cruz, Antonio Lopez-Pousa, Aurelio Santos, Xavier García Del Muro, Javier Martin-Broto
Primary malignant bone tumors are uncommon and heterogeneous malignancies. This document is a guideline developed by the Spanish Group for Research on Sarcoma with the participation of different specialists involved in the diagnosis and treatment of bone sarcomas. The aim is to provide practical recommendations with the intention of helping in the clinical decision-making process. The diagnosis and treatment of bone tumors requires a multidisciplinary approach, involving as a minimum pathologists, radiologists, surgeons, and radiation and medical oncologists...
October 16, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28937375/superficial-cd34-positive-fibroblastic-tumor-a-new-entity-case-report-and-review-of-literature
#14
Neelam Sood, Binit Kumar Khandelia
Earlier, categorized under low grade malignant fibrous histiocytoma and low grade sarcomas, 'superficial CD34 positive fibroblastic tumor', a newly proposed entity, is a low grade mesenchymal tumor of intermediate malignant potential. Morphological features include monomorphic neoplastic spindle cells arranged in a fascicular to storiform pattern along with sheets of pleomorphic epithelioid cells, and multinucleated giant cells with glassy cytoplasm. Diffuse vimentin and characteristic diffuse CD34 positivity is seen in all cases with few showing focal cytokeratin expression...
July 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28936339/utility-of-vs38c-in-the-diagnostic-and-prognostic-assessment-of-osteosarcoma-and-other-bone-tumours-tumour-like-lesions
#15
E S Hookway, Z Orosz, Y Uchihara, A Grigoriadis, A B Hassan, U Oppermann, N A Athanasou
BACKGROUND: VS38c is a monoclonal antibody that recognises a rough endoplasmic reticulum (rER) intracellular antigen termed cytoskeleton-linking membrane protein 63. rER is typically found in viable tumour cells and is abundant in osteosarcoma cells. The aim of this study was to determine the diagnostic and prognostic utility of VS38c in the histological assessment of osteosarcoma and other bone tumours/tumour-like leisons. METHODS: Immunohistochemical staining with VS38c was carried out on formalin-fixed specimens of osteosarcoma (pre/post-chemotherapy) and a wide range of benign and malignant bone lesions...
2017: Clinical Sarcoma Research
https://www.readbyqxmd.com/read/28905737/giant-cell-tumor-of-bone-revisited
#16
Andreas F Mavrogenis, Vasileios G Igoumenou, Panayiotis D Megaloikonomos, Georgios N Panagopoulos, Panayiotis J Papagelopoulos, Panayotis N Soucacos
Giant cell tumor (GCT) of bone is a locally aggressive benign neoplasm that is associated with a large biological spectrum ranging from latent benign to highly recurrent and occasionally metastatic malignant bone tumor. It accounts for 4-10% of all bone tumors and typically affects the meta-epiphyseal region of long bones of young adults. The most common site involved is the distal femur, followed by the distal radius, sacrum, and proximal humerus. Clinical symptoms are nonspecific and may include local pain, swelling, and limited range of motion of the adjacent joint...
2017: SICOT-J
https://www.readbyqxmd.com/read/28900835/osteitis-fibrosa-cystica-a-forgotten-radiological-feature-of-primary-hyperparathyroidism
#17
Waldemar Misiorowski, Izabela Czajka-Oraniec, Magdalena Kochman, Wojciech Zgliczyński, John P Bilezikian
Although bone disease and stone disease are the universally accepted classical manifestations of primary hyperparathyroidism, clinical parathyroid bone disease is rarely seen today in the United States (<5% of patients) and Western Europe. Nevertheless, in a given patient, classical skeletal involvement can be the first sign of primary hyperparathyroidism, but not recognized because it is not usually included, anymore, in the differential diagnosis of this manifestation of skeletal disease. We describe four cases of primary hyperparathyroidism in which the first clinical manifestation of the disease was a pathological fracture that masqueraded as a malignancy...
November 2017: Endocrine
https://www.readbyqxmd.com/read/28899740/histone-3-3-mutations-in-giant-cell-tumor-and-giant-cell-rich-sarcomas-of-bone
#18
Alberto Righi, Irene Mancini, Marco Gambarotti, Piero Picci, Gabriella Gamberi, Cristina Marraccini, Angelo Paolo Dei Tos, Lisa Simi, Pamela Pinzani, Alessandro Franchi
Mutually exclusive histone 3.3 gene mutations have been recognized in chondroblastoma and giant cell tumor of bone (GCTB), which may be useful for differential diagnostic purposes in morphologically ambiguous cases. While over 90% of GCTB presents histone 3.3 variants exclusively in the H3F3A gene, chondroblastoma is mutated mainly in H3F3B. In this study we examined a series of giant cell rich primary bone tumors, aiming to evaluate the possible diagnostic role of histone 3.3 mutations in the differential diagnosis between GCTB and giant cell rich sarcomas...
September 9, 2017: Human Pathology
https://www.readbyqxmd.com/read/28878661/the-successful-treatment-of-pulmonary-pleomorphic-carcinoma-with-pembrolizumab-a-case-report
#19
Yoko Matsumoto, Tamaki Miura, Hajime Horiuchi, Kazuhiro Usui
Pulmonary pleomorphic carcinomas are rare malignant tumors, and no standard treatments have been established. We herein report the successful treatment of a patient with pulmonary pleomorphic carcinoma with pembrolizumab. A 51-year-old man who was a current smoker presented to our hospital due to dyspnea and hemosputum. Chest X-ray showed right-sided pneumothorax with pleural effusion; chest tube drainage was therefore performed. Computed tomography after chest tube drainage showed a cavitary nodule in the right upper lobe and right hilar and bilateral mediastinal lymphadenopathy...
May 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28871936/xanthoma-like-skin-changes-in-an-elderly-woman-with-a-normal-lipid-profile
#20
Piotr Nockowski, Zdzisław Woźniak, Adam Reich, Joanna Maj
Dear Editor, An 83-year-old woman developed yellow-brownish infiltrates, nodules, and tumors mimicking xanthomas, mostly involving the periorbital and chest area within three months (Figure 1). She had no abnormalities in serum cholesterol or triglycerides levels. A detailed laboratory analysis revealed the presence of mild monoclonal gammopathy with a presence of immunoglobulin G (IgG) kappa light chains; however, according to hematologist consultation, it did not require medical intervention. Imaging assessment and ultrasound examination did not show any specific involvement of internal organs...
July 2017: Acta Dermatovenerologica Croatica: ADC
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