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https://www.readbyqxmd.com/read/28214470/myopericytoma-in-urinary-bladder-a-case-report
#1
Takahiro Nagai, Toshio Kamimura, Kaoru Itou, Masato Fujii, Hiromasa Tsukino, Shoichiro Mukai, Yutaka Akiyama, Hiroaki Kataoka, Toshiyuki Kamoto
BACKGROUND: Myopericytoma is reported to occur mainly in the skin and superficial soft tissue of the extremities. In contrast, occurrence in the urinary bladder is extremely rare. CASE PRESENTATION: We describe a 75-year-old Japanese man who developed a submucosal tumor at the right trigone of his bladder that led to interference with the discharge of right ureteral calculus. No invasive growth was observed by magnetic resonance imaging. Transurethral resection was successfully performed; histopathological analysis revealed perivascular proliferation of spindle-shaped to oval-shaped, cytologically bland tumor cells with eosinophilic cytoplasm...
February 19, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28213166/influence-of-clamping-stress-and-duration-on-the-trauma-of-liver-tissue-during-surgery-operation
#2
Jin Wang, Qing-Yuan Yu, Wei Li, Bing-Rui Wang, Zhong-Rong Zhou
BACKGROUND: Tissue grasping damage often occurs in minimally invasive surgery, which would increase the postoperative recovery time and the risk of surgical complications. The purpose of this study was to evaluate the relationship between liver tissue trauma and compression stress magnitude and duration during tissue clamping operation. METHODS: The clamping experiments of liver tissues in vivo were conducted by using a universal soft tissue mechanical testing machine under different clamping stress magnitudes and durations...
February 10, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28211591/magnetic-resonance-imaging-of-the-knee-an-overview-and-update-of-conventional-and-state-of-the-art-imaging
#3
Nicholas C Nacey, Matthew G Geeslin, Grady Wilson Miller, Jennifer L Pierce
: Magnetic resonance imaging (MRI) has become the preferred modality for imaging the knee to show pathology and guide patient management and treatment. The knee is one of the most frequently injured joints, and knee pain is a pervasive difficulty that can affect all age groups. Due to the diverse pathology, complex anatomy, and a myriad of injury mechanisms of the knee, the MRI knee protocol and sequences should ensure detection of both soft tissue and osseous structures in detail and with accuracy...
February 17, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28210449/oral-mucosal-lesions-in-a-chilean-elderly-population-a-retrospective-study-with-a-systematic-review-from-thirteen-countries
#4
César Rivera, Daniel Droguett, María-Jesús Arenas-Márquez
BACKGROUND: The oral examination is an essential part of the multidisciplinary medical care in elderly people. Oral mucosal lesions and normal variations of oral anatomy (OMLs) are very common in this people, but few studies have examined the frequency and prevalence of these conditions worldwide and less in Chile. The aim of this research was to evaluate the frequency of OMLs in a Chilean elderly population. MATERIAL AND METHODS: It was conducted a retrospective study (Talca, Chile)...
February 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28208056/oral-rehabilitation-of-a-patient-with-ectodermal-dysplasia-treated-with-fresh-frozen-bone-allografts-and-computer-guided-implant-placement-a-clinical-case-report
#5
Carlo Maiorana, Pier Paolo Poli, Carlo Poggio, Paola Barbieri, Mario Beretta
Ectodermal dysplasia (ED) is an inherited disorder characterized by abnormality of ectodermally derived structures. A recurrent oral finding is oligodontia, which in turn leads to a severely hypotrophic alveolar process with typical knife-edge morphology and adverse ridge contours. This unfavorable anatomy can seriously hamper proper implant placement. Fresh-frozen bone (FFB) allografts recently have been proposed to augment the residual bone volume for implant placement purposes; however, scientific evidence concerning the use of FFB to treat ED patients is absent...
January 20, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28205330/effect-of-matrix-stiffness-on-osteoblast-functionalization
#6
Tao Zhang, Shiyu Lin, Xiaoru Shao, Qi Zhang, Changyue Xue, Shu Zhang, Yunfeng Lin, Bofeng Zhu, Xiaoxiao Cai
OBJECTIVES: Stiffness of bone tissue differs response to its physiological or pathological status, such as osteoporosis or osteosclerosis. Consequently, the function of cells residing in bone tissue including osteoblasts (OBs), osteoclasts and osteocytes will be affected. However, to the best of our knowledge, the detailed mechanism of how extracellular matrix stiffness affects OB function remains unclear. MATERIALS AND METHODS: We conducted a study that exposed rat primary OBs to polydimethylsiloxane substrates with varied stiffness to investigate the alterations of cell morphology, osteoblastic differentiation and its potential mechanism in mechanotransduction...
February 15, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28205183/large-primary-pleural-synovial-sarcoma-with-severe-dyspnea-a-case-report
#7
Minoru Yamaki, Shuji Yonehara, Toshio Noriyuki
BACKGROUND: Synovial sarcoma is a malignant neoplasm of soft tissues. It occurs mainly in the extremities and is closely related to tendons, tendon sheaths, and bursal structures. Primary synovial sarcoma of the pleura and lungs is extremely rare. CASE PRESENTATION: We present the case of a 62-year-old man with a large synovial sarcoma of the left pleura. He presented with general fatigue and severe dyspnea. Chest computed tomography (CT) revealed a 20-cm tumor in the left thoracic cavity...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28203512/unusual-volar-pulp-location-of-glomus-tumor
#8
Ian A Rosner, Anne E Argenta, Kia M Washington
Glomus tumors are benign, painful growths originating from glomus bodies and comprise just 1% of tumors arising in the hand, with fewer than 10% in the volar pulp of digits. Hallmark symptoms of glomus tumors include hypersensitivity to cold, heightened pinprick sensitivity, and paroxysmal pain. We report a 72-year-old, right-hand dominant man who presented with pain in the left middle finger, localized to the tip. The fingertip was incredibly sensitive to touch, and his pain increased at night. He reported no recollection of trauma...
January 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28203491/intravascular-papillary-endothelial-hyperplasia-masson-s-tumor-diagnosis-the-plastic-surgeon-should-be-aware-of
#9
Stefanos Boukovalas, Rachel Dillard, Suimin Qiu, Eric L Cole
Intravascular papillary endothelial hyperplasia (IPEH) or Masson's tumor is a rare benign entity commonly found on the head, neck, and upper extremities. It usually arises within a blood vessel but is considered to be a nonneoplastic reactive process often associated with vascular injury. Typically, IPEHs cause no symptoms and present as slowly growing soft-tissue masses. Given their prevalent location and indolent clinical presentation, the plastic surgeon should be familiar with this rare entity. We are presenting a case of IPEH of the forehead with unusual clinical and pathologic characteristics...
January 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28197724/histological-and-immunohistochemical-characteristics-of-undifferentiated-small-round-cell-sarcomas-associated-with-cic-dux4-and-bcor-ccnb3-fusion-genes
#10
Yuichi Yamada, Masaaki Kuda, Kenichi Kohashi, Hidetaka Yamamoto, Junkichi Takemoto, Takeaki Ishii, Kunio Iura, Akira Maekawa, Hirofumi Bekki, Takamichi Ito, Hiroshi Otsuka, Makoto Kuroda, Yumi Honda, Shinji Sumiyoshi, Takeshi Inoue, Naoe Kinoshita, Atsushi Nishida, Kyoko Yamashita, Ichiro Ito, Shizuo Komune, Tomoaki Taguchi, Yukihide Iwamoto, Yoshinao Oda
CIC-DUX4 and BCOR-CCNB3 fusion-gene-associated small round cell sarcomas account for a proportion of pediatric small round cell sarcomas, but their pathological features have not been sufficiently clarified. We reviewed a large number of soft tissue tumors registered at our institution, retrieved the cases of unclassified tumors with a small round cell component, and subjected them to histopathological, immunohistochemical, and gene profile analysis. We reviewed 164 cases of unclassified tumors with a small round cell component and analyzed them by RT-PCR and FISH...
February 14, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28191296/dedifferentiated-liposarcoma-of-the-esophagus-a-case-report-and-selected-review-of-the-literature
#11
Christopher L Brett, Daniel H Miller, Liuyan Jiang, Herbert C Wolfsen, Steven Attia, Lauren Hintenlang, Niveditha Jagadesh, Robert C Miller
Soft tissue sarcomas of the esophagus represent an extremely rare cause of esophageal masses, and an even smaller proportion of these tumors represent dedifferentiated liposarcomas. We present a case of a 75-year-old gentleman presenting with dysphagia found to have a 5 cm pedunculated mass in the cervical esophagus, originating at the cricopharyngeus. This was found to have involvement limited to the superficial mucosa by endoscopic ultrasound, and the lesion was subsequently resected endoscopically. Pathology demonstrated an undifferentiated pleomorphic sarcoma later determined to represent dedifferentiated liposarcoma after fluorescence in situ hybridization analysis...
November 17, 2016: Rare Tumors
https://www.readbyqxmd.com/read/28188703/the-effect-of-radiation-therapy-in-the-treatment-of-adult-soft-tissue-sarcomas-of-the-extremities-a-long-term-community-based-cancer-center-experience
#12
Jeffrey S Kneisl, Chad Ferguson, Myra Robinson, Anthony Crimaldi, Will Ahrens, James Symanowski, Michael Bates, Jennifer L Ersek, Michael Livingston, Joshua Patt, Edward S Kim
The aim of the study was to determine the effect of external beam radiotherapy (RT) in the treatment of extremity soft tissue sarcoma (STS) before or after limb-sparing surgery (LSS) in a community-based setting. Patients presenting to our institution from 1992 to 2010 and meeting eligibility criteria were stratified into low (G1) or high (G2, G3) pathologic grade and evaluated. Major complication events, including amputation, radiation-induced sarcoma, and pathologic fracture, were assessed. Kaplan-Meier techniques and Cox proportional hazards regression models were used...
February 11, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28186845/image-findings-of-bisphosphonate-related-osteonecrosis-of-jaws-comparing-with-osteoradionecrosis
#13
Kenichi Obinata, Shinichi Shirai, Hitoshi Ito, Motoyasu Nakamura, Marco Carrozzo, Iain Macleod, Andrew Carr, Yutaka Yamazaki, Kanchu Tei
OBJECTIVES: The aim of this study was to evaluate image characteristics of bisphosphonate related osteonecrosis of the jaws (BRONJ) and compare these with osteoradionecrosis (ORN). METHODS: Thirty-four patients with BRONJ and 16 patients with ORN were included in this study. We investigated the computed tomography (CT) and Dental Panoramic Radiograph (DPR) images for osteolysis, osteosclerosis, sequesteration, periosteal reaction, pathological fracture, and spread of soft tissue inflammation around the jaws...
February 10, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/28182080/cytopathology-practice-in-kumasi-a-2-year-retrospective-audit
#14
Babatunde M Duduyemi, Osei Owusu-Afriyie, Kwabena O Danquah, Derick Na Osakunor
AIM: Surgical pathology service is generally unavailable in most developing countries and comes with challenges. Cytopathology is a reliable, inexpensive adjunct to surgical histopathology. We present a retrospective review of the various cytopathology cases received at the department. MATERIALS AND METHODS: A retrospective review of 836 cytopathology cases from January 2010 to December 2011 at the Department of Pathology of our hospital was conducted. All cytopathology reports and records from the department were retrieved and analyzed using the Statistical Package for the Social Sciences version 16 for windows...
January 2017: Journal of Cytology
https://www.readbyqxmd.com/read/28181465/the-effect-of-ulnar-variance-on-scapholunate-and-capitolunate-angles
#15
Ozgur Tosun, Atilla Hikmet Çilengir, Berna Dirim Mete, Muhsin Engin Uluc, Orhan Oyar, Aliye Tosun
Background Ulnar variance (UV), which is measured using anteroposterior (AP) X-rays, is associated with the development of multiple wrist pathologies. The scapholunate angle (SLA) and capitolunate angle (CLA) are measured using lateral X-rays, and these can be used in the diagnosis of intercalated segmental instability. Purpose To determine the effect of UV on SLA and CLA. Material and Methods A total of 140 patients (73 women, 67 men; mean age, 37.8 ± 14.6 years; 95% confidence interval [CI], 35.4-40...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28181367/periocular-breast-carcinoma-metastases-correlation-of-clinical-radiologic-and-histopathologic-features
#16
Natalie Homer, Frederick A Jakobiec, Anna Stagner, Mary Elizabeth Cunnane, Suzanne K Freitag, Aaron Fay, Michael K Yoon
IMPORTANCE: To describe presenting patterns of breast cancer metastases to the orbit and eyelids BACKGROUND: To provide clinical, radiographic, and pathologic correlations of breast metastases to the orbit or eyelids and evaluate radiographic volumetric orbital changes DESIGN: Retrospective review in an academic center PARTICIPANTS: Ten female patients with periocular metastatic breast carcinoma who were seen at the Massachusetts Eye and Ear Infirmary Oculoplastics Clinic METHODS: Retrospective review of patient records, imaging and pathology findings...
February 9, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/28178719/endometriosis-mimicking-soft-tissue-neoplasms-a-potential-diagnostic-pitfall
#17
Yi Ding, Julie Gibbs, Ge Xiong, Shigong Guo, Shailaja Raj, Marilyn M Bui
Endometriosis is a common gynecological disorder most often involving the pelvic region. Although it is rare, endometriosis occurring outside of the peritoneal cavity most commonly occurs within scars of the abdominal wall, but it has been reported in the lungs, pleura, kidneys, brain, and the extremities. Herein, we present 2 cases of endometriosis, including 1 case of endometriosis of the wrist that clinically mimicked a soft-tissue neoplasm and 1 case of right-groin endometriosis mimicking synovial sarcoma during the initial pathological interpretation of findings on fine needle aspiration...
January 2017: Cancer Control: Journal of the Moffitt Cancer Center
https://www.readbyqxmd.com/read/28177971/cutaneous-leiomyosarcoma-the-clinical-experience-of-taipei-veterans-general-hospital-revisited
#18
Wen-Chieh Liao, Yu-Chen Wang, Hsu Ma
BACKGROUND: Cutaneous leiomyosarcoma (CLM) is a rare soft tissue tumor of smooth muscle derivation. We report the clinical treatment, long-term outcomes, and prognostic findings of CLM in our institution. MATERIALS AND METHODS: We revisited and carried out a retrospective chart review of 16 consecutive patients with CLM treated from 1991 through 2015. Patient demographic data, tumor size, location, previous treatment, follow-up data, and the presence or absence of recurrence were evaluated...
February 8, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28168804/review-of-axillary-lesions-emphasising-some-distinctive-imaging-and-pathology-findings
#19
REVIEW
Amber Gupta, Cecily Metcalf, Donna Taylor
The axilla is often included on mammography, ultrasound (US), CT and MRI. Axillary masses can arise from any of the tissue components present in this region including breast parenchyma. Aetiologies include: lymphadenopathy due to inflammation, malignancy and degenerative causes; soft tissue tumours such as haemangioma, lymphangioma, peripheral nerve sheath tumours and lipomas; post-surgical complications such as seroma, lymphocoele and haematoma; lesions arising in accessory breast tissue such as fibroadenoma and carcinoma...
February 7, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28166662/-ischemic-origin-of-diabetic-foot-disease-epidemiology-difficulties-of-diagnosis-options-for-prevention-and-revascularization
#20
Endre Kolossváry, Zoltán Bánsághi, Gábor Viktor Szabó, Zoltán Járai, Katalin Farkas
"Diabetic foot" as definition covers a multifactorial clinical condition. According to the recent epidemiological data, the role of lower limb ischemia is getting more influential over other pathological causes, like neuropathy, infections and bone or soft tissue deformity. In diabetes, vascular disease leads to increased risk for leg ulcers and minor or major amputations. The traditional diagnostic tools for recognition of peripheral arterial disease have limited value because of diabetes specific clinical manifestations...
February 2017: Orvosi Hetilap
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