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https://www.readbyqxmd.com/read/28454257/sarcomatoid-urothelial-carcinoma-with-chondrosarcomatous-differentiation-of-the-ureter-a-case-report-and-review-of-the-literature
#1
Wei Lu, Yanjun Wang, Yonghong Li, Yun Cao, Hui Han, Fangjian Zhou
Sarcomatoid urothelial carcinoma of the urinary tract is associated with poor prognosis. The majority of sarcomatoid urothelial carcinomas are found in the urinary bladder, while a small minority have been shown to arise from the ureter. In the present case, a 72-year-old male patient was diagnosed with sarcomatoid urothelial carcinoma with chondrosarcomatous differentiation of the left ureter, and subsequently underwent nephroureterectomy and retroperitoneal lymph node dissection. Two lymph nodes from the renal hilum and one paraaortic lymph node were also found to have metastatic involvement; however, the patient refused to receive chemotherapy or radiotherapy and succumbed to bone and omentum metastasis at 6 months after the initial diagnosis...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28441065/the-effect-of-sterilization-methods-of-endoscopic-instruments-on-the-body-a-study-on-rat-model
#2
Adnan Hut, Dogan Yildirim, Turgut Donmez, Cihad Tatar, Semih Mirapoglu, Rukiye Nilgun Erdogan, Zumrut Mine Isık Saglam, Huseyin Kilincaslan
PURPOSE: Laparoscopy is widely used in many surgical areas for diagnosis and treatment. The need for sterilization of reusable instruments is an important issue. Ensuring patient safety, preventing infection, and protecting the functionality of the instruments are the most important points to be considered. We aimed to investigate two sterilization methods and their effects generated by their distribution into intra-abdominal tissues during insufflation. MATERIALS AND METHODS: 21 rats were used in the study...
April 25, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28440234/endoscopic-ultrasound-of-peritoneal-spaces
#3
Malay Sharma, Jayan Gopinath Madambath, Piyush Somani, Amit Pathak, Chittapuram Srinivasan Rameshbabu, Raghav Bansal, Kovil Ramasamy, Amol Patil
The peritoneal cavity is subdivided into supracolic and infracolic compartments by transverse colon and its mesocolon. The supracolic compartment contains the liver, spleen, stomach, and lesser omentum. The infracolic compartment contains the coils of small bowel surrounded by ascending, transverse, and descending colon and the paracolic gutters. The imaging of different compartments is possible by various methods such as ultrasound (US) and computerized tomography. The treating physicians should be familiar with the relevant radiological anatomy of different compartments and spaces as accurate localization of fluid collection/lymph node in peritoneal cavity greatly aids in selection of a treatment strategy...
March 2017: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/28420007/accessory-spleen-in-the-greater-omentum-embryology-and-revisited-prevalence-rates
#4
Nikita Gill, Areeba Nasir, Jennifer Douglin, Bettina Pretterklieber, Hanno Steinke, Michael Pretterklieber, Sebastian Cotofana
PURPOSE: To investigate in a large sample the prevalence rates of accessory spleens located in the greater omentum and to explain the embryological background and the vascular supply of this rare congenital disorder. METHODS: Evaluation of the presence of accessory spleens located in the greater omentum was performed in 5 different international anatomical centers investigating a total of 1,045 body donors. Arterial and venous blood supply and the precise location of the respective vasculature within the splenic ligaments are described based on dissection of this rare condition in a male specimen...
April 19, 2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28389805/a-multicentric-prospective-study-evaluating-the-safety-and-efficacy-of-kii-%C3%A2-fios-%C3%A2-first-entry-trocar-in-laparoscopic-bariatric-surgery
#5
Marcelo Loureiro, Mohamad Ramadan, El Mehdi Skalli, Pierre Blanc, Jean Michel Fabre, David Nocca
INTRODUCTION: Laparoscopic surgery has evolved as an important field of surgery due to its clear benefits when compared to open laparotomy surgery. However, specific complications of laparoscopic surgery have been reported, of which the majority are complications associated with first entry to the abdominal cavity. The emergence of bariatric surgery, combined with the special considerations of the abdominal wall and cavity of obese patients, leads to seeking new modalities of access to the abdominal cavity in this specific population...
April 7, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28386697/postoperative-changes-after-surgical-mesh-hernia-repair-a-pitfall-in-interpretation-of-18f-fdg-pet-ct
#6
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/28382901/uterus-like-masses-in-a-rhesus-macaque-macaca-mulatta
#7
Mary F Dickerson, Lauren D Martin, Anne D Lewis
Endometriosis is a relatively common condition in women and some populations of adult female rhesus macaques. However,endometriosis with extensive smooth muscle proliferation, as occurs in endomyometrioma and uterus-like mass (ULM), is rare inwomen. This report describes a case of endometriosis with extensive smooth muscle metaplasia resembling multiple ULM in a20-y-old female rhesus macaque. During a protocol-related procedure, a large, smooth, globoid, freely moveable mass was palpated in the midabdomen. Ultrasonography revealed a cystic structure from which dark brown fluid was aspirated...
April 5, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/28382576/in-vivo-human-corpus-cavernosum-regeneration-fabrication-of-tissue-engineered-corpus-cavernosum-in-rat-using-the-body-as-a-natural-bioreactor
#8
Abdol-Mohammad Kajbafzadeh, Reza Abbasioun, Nastaran Sabetkish, Shabnam Sabetkish, Ali Akbar Habibi, Kamyar Tavakkolitabassi
PURPOSE: Few researches have been conducted to develop an ideal method for tissue engineering of corpus cavernosum. We produce a decellularized human corpus cavernosum scaffold and investigate the in vivo cell seeding of the scaffold after transplantation into the rat omentum. METHODS: Eight adult human male corpus cavernosum were obtained in sterile condition. After dissecting the urethra, corpus cavernosum was decellularized by inserting an 18-gauge needle into the body of the tissue...
April 5, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28377901/unusual-presentation-of-invasive-mole-a-case-report
#9
Soheila Aminimoghaddam, Andisheh Maghsoudnia
BACKGROUND: Invasive mole is responsible for most cases of localized gestational trophoblastic neoplasia. Gestational trophoblastic disease describes a number of gynecologic tumors that originate in trophoblastic layer including hydatidiform mole (complete or partial), invasive mole, choriocarcinoma, placental site trophoblastic tumor and epitheloid trophoblastic tumor. Invasive mole may arise from any pregnancy event although in most cases is diagnosed after molar pregnancy. Overall cure rate in low risk patients is nearly 100% and in high-risk patient 90%...
January 2017: Journal of Reproduction & Infertility
https://www.readbyqxmd.com/read/28377891/spontaneous-bladder-rupture-masquerading-as-pseudo-diverticulum
#10
M Raghavendran, Kiran G Kumar, A Venugopal, Shiva Prasad, H A Venkatesh
Spontaneous bladder rupture is rare. Presentation is non-specific and in absence of history of trauma, radiation, inflammatory conditions and other leading causes, there is considerable diagnostic delay. Absence of clear cut diagnostic signs leads to increased morbidity and mortality. In many patients, omentum seals perforation, giving diverticular appearance in Cystogram. The objective of this case report is to highlight important specific diagnostic points in history and radiology which will help in clear, early diagnosis and treatment causing immense benefit to the patient...
May 2017: Urology Case Reports
https://www.readbyqxmd.com/read/28373735/a-case-of-feline-ectopic-abdominal-fetuses-secondary-to-trauma
#11
Andrew Chong
A multiparous adult cat with a history of prior trauma but no presenting clinical signs was admitted for routine ovariohysterectomy. Uterine abnormalities indicative of trauma were found in addition to 2 ectopic fetuses wrapped in omentum. The ovariohysterectomy was completed and the ectopic fetuses were removed. Recovery was uneventful.
April 2017: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/28363254/pancreatic-neuroendocrine-carcinoma-with-exocrine-differentiation-in-a-young-cat
#12
Masaki Michishita, Mariko Takagi, Takuya E Kishimoto, Rei Nakahira, Takeshi Nogami, Hisashi Yoshimura, Hitoshi Hatakeyama, Daigo Azakami, Kazuhiko Ochiai, Kimimasa Takahashi
A 35-mo-old spayed female mixed-breed cat with continuous vomiting, emaciation, and abdominal distention for 2 wk was presented to a private veterinary clinic for evaluation. At 71 d after the initial visit, the cat died with anemia, jaundice, and hypoalbuminemia, and was subjected to autopsy. Grossly, numerous firm masses, 0.5-2.5 cm diameter, were randomly located in the left lobe of the pancreas. Histologic examination revealed that the pancreatic mass consisted of 2 tumor cell types: mostly small round cells with a minority of epithelial cells...
March 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28351781/geis-guidelines-for-gastrointestinal-sarcomas-gist
#13
REVIEW
Andrés Poveda, Xavier García Del Muro, Jose Antonio López-Guerrero, Ricardo Cubedo, Virginia Martínez, Ignacio Romero, César Serrano, Claudia Valverde, Javier Martín-Broto
Gastrointestinal stromal sarcomas (GISTs) are the most common mesenchymal tumours originating in the digestive tract. They have a characteristic morphology, are generally positive for CD117 (c-kit) and are primarily caused by activating mutations in the KIT or PDGFRA genes(1). On rare occasions, they occur in extravisceral locations such as the omentum, mesentery, pelvis and retroperitoneum. GISTs have become a model of multidisciplinary work in oncology: the participation of several specialties (oncologists, pathologists, surgeons, molecular biologists, radiologists…) has forested advances in the understanding of this tumour and the consolidation of a targeted therapy, imatinib, as the first effective molecular treatment in solid tumours...
March 2, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28351362/a-peculiar-case-report-of-extraovarian-brenner-tumor-arising-in-the-omentum
#14
Chung Su Hwang, Chang Hun Lee, So Jeong Lee, Young Geum Kim, Ahrong Kim, Do Youn Park, Hyun Jeong Kang, Dong Hoon Shin
BACKGROUND: Brenner tumors almost always develop in the ovary. Exceptionally, extraovarian Brenner tumors have been reported in the lower abdomen or pelvic organs. Here, we introduce a peculiar case of an extraovarian Brenner tumor arising in the omentum. CASE PRESENTATION: A 43-year-old woman presented with a palpable abdominal mass. Computed tomography (CT) scan revealed a 9.0-cm solid mass in the omentum. The tumor was not associated with pelvic structures, including the ovaries...
March 28, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28349649/sewing-needles-in-the-abdominal-cavity-assumed-to-have-been-ingested-and-to-have-penetrated-the-gi-tract-40%C3%A2-years-ago-a-case-report
#15
Naoya Yamaguchi, Kazuhiro Hiramatsu, Yoshihisa Shibata, Motoi Yoshihara, Taro Aoba, Tadahiro Kamiya, Yoshio Koike, Takeru Fujita, Chikara Maeda, Kisuke Ito, Yuichi Kanbara, Motonobu Nishimura, Ryutarou Kobayashi, Hideyuki Dei, Aitaro Takimoto, Yukiko Nonaka, Takehito Kato
A 60-year old woman had been hospitalized in a psychiatric hospital for 40 years for schizophrenia. An X-ray was performed when she fell, which showed needles in the abdominal field. After additional examinations and questioning, the patient was diagnosed with needles in the abdominal cavity, which were assumed to have been ingested and to have perforated the GI tract 40 years ago. They were removed by laparoscopic surgery. The needles were found in the omentum and near the left ovary. There were no inflammatory reactions around them...
March 28, 2017: Asian Journal of Endoscopic Surgery
https://www.readbyqxmd.com/read/28346091/a-high-throughput-screening-model-of-the-tumor-microenvironment-for-ovarian-cancer-cell-growth
#16
Madhu Lal-Nag, Lauren McGee, Rajarshi Guha, Ernst Lengyel, Hilary A Kenny, Marc Ferrer
The tumor microenvironment plays an important role in the processes of tumor growth, metastasis, and drug resistance. We have used a multilayered 3D primary cell culture model that reproduces the human ovarian cancer metastatic microenvironment to study the effect of the microenvironment on the pharmacological responses of different classes of drugs on cancer cell proliferation. A collection of oncology drugs was screened to identify compounds that inhibited the proliferation of ovarian cancer cells growing as monolayers or forming spheroids, on plastic and on a 3D microenvironment culture model of the omentum metastatic site, and also cells already in preformed spheroids...
January 1, 2017: SLAS Discovery
https://www.readbyqxmd.com/read/28344967/mucinous-cystadenocarcinoma-of-ovary-with-metastasis-in-14-year-old-girl
#17
Barkha Gupta, Prerna Arora, Nita Khurana, Anjali Tempe
Ovarian mucinous tumors in <15 years old are rare with <50 cases reported till date in the literature. Majority of them are benign or borderline epithelial ovarian tumors with only 12 cases of cystadenocarcinomas reported at a young age. We report a case of mucinous cystadenocarcinoma in 14-year-old girl with metastasis to omentum at the time of presentation. Management of such cases is tricky as conservative approach sparing fertility of the patient is adopted. This case is presented for its rarity and unique presentation...
March 2017: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/28337443/urethral-reconstruction-using-mesothelial-cell-seeded-autogenous-granulation-tissue-tube-an-experimental-study-in-male-rabbits
#18
Shiwei Jiang, Zhonghua Xu, Yuanyuan Zhao, Lei Yan, Zunlin Zhou, Gangli Gu
Objective. This study was to evaluate the utility of the compound graft for tubularized urethroplasty by seeding mesothelial cells onto autogenous granulation tissue. Methods. Silastic tubes were implanted subcutaneously in 18 male rabbits, of which nine underwent omentum biopsies simultaneously for in vitro expansion of mesothelial cells. The granulation tissue covering the tubes was harvested 2 weeks after operation. Mesothelial cells were seeded onto and cocultured with the tissue for 7 days. A pendulous urethral segment of 1...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28323210/the-protective-activity-of-mesothelial-cells-against-peritoneal-growth-of-gastrointestinal-tumors-the-role-of-soluble-icam-1
#19
Justyna Mikuła-Pietrasik, Paweł Uruski, Małgorzata Kucińska, Andrzej Tykarski, Krzysztof Książek
In this project we examined how the presence of human peritoneal mesothelial cells (HPMCs) modifies (supports or inhibits) colorectal and pancreatic cancer cell progression in mice peritoneal cavity. Experiments were performed using primary, omentum-derived HPMCs, commercially available colorectal (SW-480) and pancreatic (PSN-1) cancer cells, and immunocompromised SCID mice. Tumor growth within the peritoneal cavity was monitored using bioluminescence. Adhesion of the cancer cells to HPMCs was examined using a fluorescence-based method, while the incidence of apoptosis was quantified using flow cytometry...
March 18, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28321385/the-laparoscopically-harvested-omental-free-flap-a-compelling-option-for-craniofacial-and-cranial-base-reconstruction
#20
Peter D Costantino, David Shamouelian, Tristan Tham, Robert Andrews, Wojciech Dec
Background Management of craniofacial and cranial base tumors is a challenge due to the anatomic intricacies associated with the calvarium, the pathological diversity of lesions that present, and the potential complications. Clinical outcomes in laparoscopically harvested omentum free flaps for cranial base and craniofacial reconstruction are presented in this paper, in the largest case series to date. Methods A retrospective single-center experience for over 10 years with laparoscopically harvested omentum flaps used to reconstruct craniofacial and cranial base defects...
April 2017: Journal of Neurological Surgery. Part B, Skull Base
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