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https://www.readbyqxmd.com/read/28418346/extra-gastrointestinal-stromal-tumor-of-prostate
#1
Demet Etit, Haldun Kar, Neşe Ekinci, Ahmet Emre Yenipazar, Fulya Çakalağaoğlu
BACKGROUND: Extra-gastrointestinal stromal tumor is defined as a mesenchymal neoplasm arising from soft tissues outside the gastrointestinal tract. Prostatic extra-gastrointestinal stromal tumor has rarely been noted. CASE REPORT: A 56 year-old man presented with pain in the anal region. A digital rectal examination revealed that the prostate was markedly enlarged with a smooth, bulging surface. Computerized tomography images showed a 6 cm heterogeneous, infiltrative tumor within the prostate gland extending to the trigon of the bladder, left seminal vesicle and rectum...
April 5, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28409065/malignant-clear-cell-hidradenoma-of-the-breast
#2
Isaac Chambers, Ahmad K Rahal, Pavan S Reddy, K James Kallail
A 58-year-old female had a mass in the right breast palpable beneath the areola. A mammogram revealed a 1.5-centimeter soft tissue density that was confirmed with a subsequent ultrasound. The patient underwent a core needle biopsy which was initially reported as a moderately differentiated invasive ductal carcinoma. Immunohistochemical analysis revealed negative staining for estrogen receptor (ER), progesterone receptor (PR), human epidermal growth factor receptor (HER2), mammaglobin, and gross cystic disease fluid protein 15 (GCDFP-15)...
March 1, 2017: Curēus
https://www.readbyqxmd.com/read/28405504/pd-l1-cd274-copy-number-gain-expression-and-immune-cell-infiltration-as-candidate-predictors-for-response-to-immune-checkpoint-inhibitors-in-soft-tissue-sarcoma
#3
Jan Budczies, Gunhild Mechtersheimer, Carsten Denkert, Frederick Klauschen, Sadaf S Mughal, Priya Chudasama, Michael Bockmayr, Korinna Jöhrens, Volker Endris, Amelie Lier, Felix Lasitschka, Roland Penzel, Manfred Dietel, Benedikt Brors, Stefan Gröschel, Hanno Glimm, Peter Schirmacher, Marcus Renner, Stefan Fröhling, Albrecht Stenzinger
Soft-tissue sarcomas (STS) are rare malignancies that account for 1% of adult cancers and comprise more than 50 entities. Current therapeutic options for advanced-stage STS are limited. Immune checkpoint inhibitors targeting the PD-1/PD-L1 signaling axis are being explored as new treatment modality in STS; however, the determinants of response to these agents are largely unknown. Using the sarcoma data set of The Cancer Genome Altas (TCGA) and an independent cohort of untreated high-grade STS, we analyzed DNA copy number status and mRNA expression of PD-L1 in a total of 335 STS cases...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28397454/histological-evaluation-of-the-local-soft-tissue-reaction-after-implanting-resorbable-and-non-resorbable-monofilament-fibers
#4
Bogusława Żywicka, Maria Szymonowicz, Danuta Bryła, Zbigniew Rybak
BACKGROUND: The development of technologies and scientific disciplines connected with medical implantation devices is dynamically affecting modern treatments by contemporary medicine and veterinary medicine; it also entails a need to monitor their impact on living organisms. OBJECTIVES: The aim of the study was to conduct a comparative histological evaluation of the response of soft tissues after implanting monofilament fibers from resorbable glyconate and from non-resorbable polypropylene (PP) and polyamide (PA) in rats...
July 2016: Polimery W Medycynie
https://www.readbyqxmd.com/read/28397137/fluorescence-guided-resection-of-extracranial-soft-tissue-tumour-infiltration-in-atypical-meningioma
#5
Florian Scheichel, Karl Ungersboeck, Melitta Kitzwoegerer, Franz Marhold
The exact role of 5-aminolevulinic acid (5-ALA) fluorescence-guided meningioma resection is as yet unclear. Although most of the meningiomas show positive fluorescence, the influence on outcome, fluorescence heterogeneity within the tumour, the correlation between fluorescence and the proliferation rate, as well as different quantitative measurements are a matter of debate. Positive fluorescence in bone infiltrative meningiomas is well described, whereas little data exist about 5-ALA fluorescence within soft tissue infiltration...
April 10, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28390182/early-local-delivery-of-vancomycin-suppresses-ectopic-bone-formation-in-a-rat-model-of-trauma-induced-heterotopic-ossification
#6
Jonathan G Seavey, Benjamin M Wheatley, Gabriel J Pavey, Allison M Tomasino, Margaret A Hanson, Erin M Sanders, Devaveena Dey, Kaitlyn L Moss, Benjamin K Potter, Jonathan A Forsberg, Ammar T Qureshi, Thomas A Davis
Heterotopic ossification (HO) is a debilitating sequela of high-energy injuries. It frequently requires surgical excision once symptomatic and there is no practical prophylaxis for combat-injured patients. In this study, we examined the effect of local vancomycin powder on HO formation in a small animal model of blast-related, post-traumatic HO. Male Sprague-Dawley rats were subjected to a polytraumatic extremity injury and amputation with or without methicillin-resistant Staphylococcus aureus infection. Animals were randomized to receive a single local application of vancomycin (20 mg/kg) at the time of injury (POD-0, n = 34) or on postoperative day-3 (POD-3, n = 11)...
April 8, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28386697/postoperative-changes-after-surgical-mesh-hernia-repair-a-pitfall-in-interpretation-of-18f-fdg-pet-ct
#7
T Davidson, E Klang, E Goshen, J Goldstein, M Khaikin, B Chikman, S Ben-Haim
OBJECTIVE: A number of case reports have demonstrated FDG uptake around mesh prostheses after hernia repair surgery. This study characterizes FDG PET-CT findings after hernia repair with synthetic mesh in a series of cancer patients. MATERIALS AND METHODS: FDG PET-CT studies were reviewed for increased FDG uptake consistent with CT appearances of post-surgical hernia repair in cancer patients. The findings were correlated with clinical data and follow-up studies...
April 6, 2017: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/28386395/outcome-of-surgery-for-primary-and-recurrent-desmoid-type-fibromatosis-a-retrospective-case-series-of-174-patients
#8
Panagiotis Tsagozis, Jonathan Daniel Stevenson, Robert Grimer, Simon Carter
BACKGROUND: The best management of relapsing desmoid-type fibromatosis, a benign but locally infiltrative soft-tissue tumour, is largely undecided. Our aim was to investigate the incidence and the factors influencing local relapse after surgery for primary and recurrent disease of the trunk and extremities. PATIENTS AND METHODS: Retrospective analysis of 174 patients who had surgical treatment for desmoid-type fibromatosis. The quality of the surgical margins and use of adjuvant radiotherapy or chemotherapy were analysed regarding local recurrences in primary and recurrent disease...
May 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/28376906/braf-v600e-expression-in-histiocytic-sarcoma-associated-with-splenic-marginal-zone-lymphoma-a-case-report
#9
John L Vaughn, C Eric Freitag, Jessica A Hemminger, Jeffrey A Jones
BACKGROUND: Histiocytic sarcoma is a rare histiocytic neoplasm of unknown etiology that constitutes less than 1% of hematologic malignancies. A few cases of histiocytic sarcoma harboring the BRAF (V600E) mutation have been reported, but this finding has not been confirmed in all studies. CASE PRESENTATION: We report the case of a 63-year-old white woman with a history of splenic marginal zone lymphoma who presented with 2 weeks of right-sided neck swelling. Positron emission tomography revealed an intensely hypermetabolic and destructive soft tissue mass in her right skull base...
April 5, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28375887/randomized-controlled-trial-of-interscalene-block-compared-with-injectable-liposomal-bupivacaine-in-shoulder-arthroplasty
#10
RANDOMIZED CONTROLLED TRIAL
Surena Namdari, Thema Nicholson, Joseph Abboud, Mark Lazarus, Dean Steinberg, Gerald Williams
BACKGROUND: Shortcomings of interscalene brachial plexus blockade include technical failure and rebound pain. Bupivacaine liposome injectable suspension, a sustained release preparation, is used for surgical-site administration. The purpose of this study was to evaluate these 2 postoperative pain management strategies in patients undergoing shoulder arthroplasty. METHODS: In a non-blinded, randomized controlled trial of participants undergoing primary shoulder arthroplasty, patients were randomized to interscalene brachial plexus blockade or intraoperative soft-tissue infiltration of bupivacaine liposome injectable suspension...
April 5, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28365129/long-term-results-of-treatment-of-advanced-dermatofibrosarcoma-protuberans-dfsp-with-imatinib-mesylate-the-impact-of-fibrosarcomatous-transformation
#11
P Rutkowski, A Klimczak, I Ługowska, B Jagielska, M Wągrodzki, M Dębiec-Rychter, B Pieńkowska-Grela, T Świtaj
BACKGROUND: Dermatofibrosarcoma protuberans (DFSP) is rare, infiltrating dermal neoplasm, characterized by indolent growth and low probability of metastases. The first effective systemic therapy in DFSP introduced into clinical practice was imatinib, demonstrating high activity in advanced cases. The aim of the study was to perform an analysis of patients with advanced DFSP treated with imatinib, with or without surgery, in routine clinical practice with long-term follow-up. PATIENTS AND METHODS: We analyzed the data of 31 Caucasian patients (14 male, 17 female; median age 56 years) with locally advanced/initially inoperable and/or metastatic DFSP who started therapy with imatinib at initial dose 800 mg daily between 12/2004 and 07/2014...
March 22, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28364003/multi-drug-analyses-in-patients-distinguish-efficacious-cancer-agents-based-on-both-tumor-cell-killing-and-immunomodulation
#12
Jason Frazier, Jessica A Bertout, William S Kerwin, Alicia Moreno-Gonzalez, Joey R Casalini, Marc O Grenley, Emily Beirne, Kori L Watts, Andy Keener, Derek J Thirstrup, Ilona Tretyak, Sally Ditzler, Chelsea D Tripp, Kevin Choy, Sarah Gillings, Megan N Breit, Karri A Meleo, Vanessa Rizzo, Chamisa L Herrera, James A Perry, Ravi K Amaravadi, James M Olson, Richard Klinghoffer
The vision of a precision medicine-guided approach to novel cancer drug development is challenged by high intra-tumor heterogeneity and interpatient diversity. This complexity is rarely modeled accurately during preclinical drug development, hampering predictions of clinical drug efficacy. To address this issue, we developed CIVO (Comparative In Vivo Oncology) arrayed microinjection technology to test tumor responsiveness to simultaneous microdoses of multiple drugs directly in a patient's tumor. Here, in a study of 18 canine patients with soft tissue sarcoma (STS), CIVO captured complex, patient-specific tumor responses encompassing both cancer cells and multiple immune infiltrates following localized exposure to different chemotherapy agents...
March 31, 2017: Cancer Research
https://www.readbyqxmd.com/read/28357083/primary-laryngeal-localization-of-multiple-myeloma-a-case-report
#13
Eugenia Allegra, Nicolò Marino, Domenico Modica, Carmela Emmanuele, Vincenzo Saita
Multiple myeloma is a lymphoproliferative disease that may involve the bone marrow as well as extramedullary soft tissues. However, laryngeal localization of multiple myeloma is extremely rare. We herein present the case of a 68-year-old male patient with a history of dyspnea, dysphonia and dysphagia. Laryngoscopic examination revealed a lesion involving the right glottis and right vestibular (false) vocal fold, with absence of ipsilateral laryngeal motility and constriction of the airway. Computed tomography and magnetic resonance imaging revealed a gross swelling infiltrating the right glottis and right false vocal fold, sized 33×19×33 mm, with sub-centimeter laterocervical lymph nodes bilaterally...
February 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28329585/report-of-rare-case-of-dermatofibrosarcoma-protuberans-in-the-buccal-mucosa-review-of-diagnostic-histopathological-and-immunohistochemical-criteria
#14
Amanda Katarinny Goes Gonzaga, Angélica Lopes Cordeiro Mandú, Alexandre Oliveira Sales, Ana Miryam Costa Medeiros, Rodrigo Rodrigues Rodrigues, Patrícia Teixeira Oliveira, Adriano Rocha Germano, Éricka Janine Dantas Silveira
Dermatofibrosarcoma protuberans (DFSP) is an uncommon intermediate-grade soft tissue sarcoma. The tumor is found preferentially on the trunk, whereas the head and neck region are affected in only 10% to 15% of cases. We report the case of a 44-year-old woman with a 5-month history of an asymptomatic, firm, yellow nodule in the mucosa of the right cheek measuring 2.5 cm. The clinical diagnosis was lipoma and an excisional biopsy was obtained. Histopathological analysis revealed a proliferation of spindle-shaped mesenchymal cells arranged in interlacing fascicles amidst fibrous stroma...
October 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28324880/fine-needle-aspiration-cytology-of-diffuse-type-tenosynovial-giant-cell-tumors
#15
Zimin Zhao, Cherie Paquette, Akeesha A Shah, Kristen A Atkins, Henry F Frierson
BACKGROUND: Tenosynovial giant cell tumor (TSGCT), also known as giant cell tumor of tendon sheath or pigmented villonodular synovitis, is the most common benign tumor of the tendon and synovium. The intra-articular diffuse type can present as a large infiltrative mass involving adjacent soft tissue and sometimes causes secondary destruction of bone, which leads to radiographic and clinical concern for malignancy. The tumor may also be purely extra-articular. CASE: Here, we report the fine needle aspiration cytology findings of 2 cases of diffuse-type TSGCT with large mononuclear cells with eccentric nuclei, finely granular cytoplasm, and a peripheral well-defined cytoplasmic rim of hemosiderin ("ladybird cells")...
March 22, 2017: Acta Cytologica
https://www.readbyqxmd.com/read/28323397/in-vivo-response-to-decellularized-mesothelium-scaffolds
#16
Michael J Cronce, Renea A Faulknor, Irina Pomerantseva, Xiang-Hong Liu, Scott M Goldman, Emmanuel C Ekwueme, Olive Mwizerwa, Craig M Neville, Cathryn A Sundback
Biological surgical scaffolds are used in plastic and reconstructive surgery to support structural reinforcement and regeneration of soft tissue defects. Macrophage and fibroblast cell populations heavily regulate scaffold integration into host tissue following implantation. In the present study, the biological host response to a commercially available surgical scaffold (Meso BioMatrix Surgical Mesh (MBM)) was investigated for up to 9 weeks after subcutaneous implantation; this scaffold promoted superior cell migration and infiltration previously in in vitro studies relative to other commercially available scaffolds...
March 21, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28303918/effects-of-matrix-stiffness-on-epithelial-to-mesenchymal-transition-like-processes-of-endometrial-epithelial-cells-implications-for-the-pathogenesis-of-endometriosis
#17
Sachiko Matsuzaki, Claude Darcha, Jean-Luc Pouly, Michel Canis
Endometriosis is defined as the presence of endometrial glands and stroma within extrauterine sites. Our previous study revealed an epithelial to mesenchymal transition (EMT)-like process in red peritoneal endometriosis, whereas membrane localization of E-cadherin was well maintained in epithelial cells of deep infiltrating endometriosis (DIE). Here we show that endometrial epithelial cells (EEE) grown on polyacrylamide gel substrates (PGS) of 2 kilopascal (kPa), a soft matrix, initiate a partial EMT-like process with transforming growth factor-β1 (TGF-β1) stimulation...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28303300/consequences-of-radiopharmaceutical-extravasation-and-therapeutic-interventions-a-systematic-review
#18
REVIEW
Jochem van der Pol, Stefan Vöö, Jan Bucerius, Felix M Mottaghy
PURPOSE: Radiopharmaceutical extravasation can potentially lead to severe soft tissue damage, but little is known about incidence, medical consequences, possible interventions, and effectiveness of these. The aims of this study are to estimate the incidence of extravasation of diagnostic and therapeutic radiopharmaceuticals, to evaluate medical consequences, and to evaluate medical treatment applied subsequently to those incidents. METHODS: A sensitive and elaborate literature search was performed in Embase and PubMed using the keywords "misadministration", "extravasation", "paravascular infiltration", combined with "tracer", "radionuclide", "radiopharmaceutical", and a list of keywords referring to clinically used tracers (i...
March 16, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28292525/intraoperative-cell-isolation-for-a-cytological-assessment-of-bone-resection-margins-in-patients-with-head-and-neck-cancer
#19
M Nieberler, P Häußler, M R Kesting, A Kolk, H Stimmer, K Nentwig, G Weirich, K-D Wolff
The intraoperative cytological assessment of bony resection margins (ICAB) is a feasible diagnostic approach to support frozen section for assessment of invasion of margins of soft and hard tissue. However, complex resection margins could challenge both diagnostic approaches. Our objective here was to identify the limitations of intraoperative diagnostic methods for assessing margins. We present an advanced cytological approach to assess complex margins that may solve the problem. Data from 119 patients in whom frozen section was supported by ICAB, were reviewed and the reasons for false results analysed...
March 11, 2017: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/28287948/spectrum-of-ct-findings-in-thoracic-extranodal-non-hodgkin-lymphoma
#20
Mathew P Bligh, Joy N Borgaonkar, Steven C Burrell, David A MacDonald, Daria Manos
Non-Hodgkin lymphoma (NHL) frequently manifests in extranodal structures in the chest, often in the form of secondary involvement but occasionally as primary disease. Because staging and treatment are affected by the presence of extranodal disease at imaging, radiologists' interpretation and management of suspicious findings are critical to patient care. Unfortunately, owing to considerable imaging overlap with other diseases, primary extranodal lymphoma is difficult to diagnose with imaging alone. Radiologists should have a heightened degree of suspicion in patients at risk (including patients with immune compromise, autoimmune diseases, or a history of stem cell or solid organ transplant) or with particular imaging appearances (including the vertebral wraparound sign, nonresolving consolidation, an infiltrative soft-tissue mass, and lesions demonstrating vascular encasement without invasion)...
March 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
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