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Patricia Arranz, Kelly J Benoit-Bird, Brandon L Southall, John Calambokidis, Ari S Friedlaender, Peter L Tyack
Humans remember the past and use that information to plan future actions. Lab experiments that test memory for the location of food show that animals have a similar capability to act in anticipation of future needs, but less work has been done on animals foraging in the wild. We hypothesized that planning abilities are critical and common in breath-hold divers who adjust each dive to forage on prey varying in quality, location and predictability within constraints of limited oxygen availability. We equipped Risso's dolphins with sound-and-motion recording tags to reveal where they focus their attention through their externally observable echolocation and how they fine tune search strategies in response to expected and observed prey distribution...
February 28, 2018: Journal of Experimental Biology
Arafat Khalphallah, Nasr-Eldin M Aref, Ashraf M Abu-Seida, Enas Elmeligy, Sara A Bayoumi, Al-Lethie A Al-Lethie, Doaa Salman
This study describes the ultrasonographic findings of five hepatobiliary diseases in buffaloes. Fifty buffaloes including; 20 clinically normal and 30 hepatobiliary diseased buffaloes were enrolled in this study. Complete clinical, radiographic and ultrasonographic examinations and laboratory analyses were conducted. RESULTS: Focal parenchymal lesions including liver abscess (N=12) and hepatic cyst (N=6), diffuse parenchymal lesion (hepatobiliary cirrhosis, N=5) and obstruction of hepatobiliary passages including cholestasis (N=4) and hepatocholelithiasis (N=3) were successfully imaged by ultrasound...
February 27, 2018: Journal of Veterinary Science
Dongmo Wang, Kai Zhu, Jiawei Tian, Ziyao Li, Guoqing Du, Qiang Guo, Tong Wu, Juan Li
The purpose of this study was to analyze the clinicopathological and ultrasound characteristics of triple-negative breast cancers (TNBCs) and compare these findings with those for hormone receptor-positive (HR-positive)/human epidermal growth factor receptor-2-negative (HER-2-negative) tumors. Seventy-five TNBCs and 135 HR-positive/HER-2-negative breast cancers were reviewed. Data from conventional ultrasound, Doppler vascularity and elastography were included in the analysis. TNBCs had a higher histologic grade and Ki-67 level...
February 23, 2018: Ultrasound in Medicine & Biology
YanFang Wang, Fang Nie, Ting Liu, Dan Yang, Qi Li, Jing Li, AiLing Song
The use of ultrasound in differentiation of benign and malignant solid hypo-echoic thyroid nodules is a dilemma in clinical practice. The aim of this study was to investigate the revised value of contrast-enhanced ultrasound (CEUS) for differentiating solid hypo-echoic thyroid nodules using the Thyroid Imaging Reporting and Data System (TI-RADS).The study included 135 patients with 135 nodules confirmed by fine-needle aspiration and/or surgery. Every nodule underwent both conventional US and CEUS. Binary logistic regression analysis for conventional US features revealed that irregular shape, microcalcification and height greater than width were significant malignant predictive features...
February 19, 2018: Ultrasound in Medicine & Biology
Daisuke Katsura, Yuichiro Takahashi, Shigenori Iwagaki, Rika Chiaki, Kazuhiko Asai, Masako Koike, Shunsuke Yasumi, Madoka Furuhashi, Akira Hara, Hitoshi Iwata
Acute funisitis is characterized by the infiltration of fetal neutrophils from the umbilical vessels into Wharton's jelly and presents as fetal inflammation. However, no reports about its prenatal diagnosis using ultrasonography have been published. We encountered one case of oligohydramnios at 26 weeks and another case of threatened premature delivery at 27 weeks of gestation with ultrasonographic findings of non-uniform thickening of Wharton's jelly, a heterogeneous internal echo, and a high echoic line of the umbilical vessel wall...
February 2, 2018: Journal of Medical Ultrasonics
Yamato Yamashita, Toshiyuki Ishiba, Goshi Oda, Tsuyoshi Nakagawa, Tomoki Aburatani, Taiichi Ogo, Yutaka Nakashima, Hironobu Baba, Naoaki Hoshino, Yoshinobu Nishioka, Tatsuyuki Kawano, Takashi Itoh, Susumu Kirimura, Hirotoshi Kobayashi
Breast cancer in male is rare, accounting for 1%of all breast cancers.Among male breast cancers, noninvasive carcinoma is extremely rare.We experienced a case of noninvasive carcinoma of the breast in a male.A 72-year-old male was referred to our hospital with a chief complaint of the tumor and blood secretion from the left nipple.Mammography revealed a highdensity mass.Ultrasound examination revealed low echoic mass at the E area, and it measured 1.5 cm.Core needle biopsy failed to provide a definitive diagnosis, and we performed an excisional biopsy of the tumor...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Akiko Igawa, Takashi Nishi, Akimasa Nishimura, Satoko Morohashi, Kenichi Hakamada
Tumor cell displacement is occasionally observed in surgical specimens after core needle biopsy. We report a case involving a 58-year-old woman in whom a microlobulated mass was detected on mammography, after which she underwent an ultrasonography- guided core needle biopsy. Thirty-six days later, a new low-echoic lesion was detected on ultrasonography, located from the original mass to the subcutaneous insertion site of the needle biopsy. Fifty days after the biopsy, breast-conserving surgery was performed...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Hiroto Matsui, Kazuhiko Sakamoto, Satoshi Matsukuma, Yukio Tokumitsu, Yoshihiro Tokuhisa, Shinsuke Kanekiyo, Shinobu Tomochika, Michihisa Iida, Nobuaki Suzuki, Shigeru Takeda, Shigefumi Yoshino, Shoichi Hazama, Tomio Ueno, Hiroaki Nagano
The patient was a 46-year-old woman with left lower abdominal pain.Abdominal dynamic CT revealed a 40 mm, gradually- enhanced pancreatic head mass.The interior of the tumor was heterogeneous and partly low in density.Endoscopic ultrasonography showed a well-defined and heterogeneous tumor with an echoic area in the pancreatic head.Therefore, the cystic lesion with solid components was suspected to be a solid pseudopapillary neoplasm(SPN), considering the age of the patient.Subtotal stomach-preserving pancreaticoduodenectomy was performed...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Zhining Liu, Weidong Ren, Jintao Guo, Ying Zhao, Siyu Sun, Yuhong Li, Zhijun Liu
OBJECTIVE: Transabdominal ultrasound after oral administration of an echoic cellulose-based gastric ultrasound contrast agent (TUS-OCCA) has recently been suggested as a valuable mass-screening tool for gastric cancer. The aim of this study was to propose a producible stomach ultrasound reporting and data system (Su-RADS) using TUS-OCCA for gastric cancer screening. PATIENTS: The study includes information of 2738 patients who underwent both gastroscopy and TUS-OCCA examinations recorded in software system...
January 25, 2018: Gastric Cancer
Shuhei Nishigori, Kazushi Numata, Kuniyasu Irie, Hiroyuki Fukuda, Makoto Chuma, Shin Maeda
PURPOSE: We evaluated the efficacy of fusion imaging combining contrast-enhanced ultrasonography (CEUS) images and arterial phase contrast-enhanced CT (CECT) or hepatobiliary phase magnetic resonance imaging with gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid (EOB-MRI) images for the early evaluation of the effectiveness of radiofrequency ablation (RFA) for small hypervascular hepatocellular carcinoma (HCC) with iso-echoic or unclear margins on conventional US. METHODS: Forty HCCs (22 iso-echoic and 18 unclear margin lesions) with mean diameters of 13...
January 23, 2018: Journal of Medical Ultrasonics
Kenichi Sakurai, Shigeru Fujisaki, Hitomi Kubota, Yukiko Hara, Shuhei Suzuki, Keita Adachi, Ryouichi Tomita, Katsuhisa Enomoto, Tomohiro Hirano
We report a case of synchronous and unilateral breast cancers in a 51-year-old female.A focal asymmetric right breast density was detected on breast cancer screening mammography.Ultrasonography showed a low echoic mass, 9mm in diameter, in the B area, and a second low echoic mass in the CD area of her right breast.A core needle biopsy of the B area mass led to a diagnosis of an invasive lobular carcinoma, positive for estrogen receptor(ER)and progesterone receptor(PgR), and negative for HER2/neu.One -percent of the tumor cells were Ki-67 positive...
January 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Rebecca Larkin, Chiara Palmieri, Motoharu Oishi, Lyndal Hulse, Stephen D Johnston
Studies documenting the application of ultrasonography to depict normal and pathological changes in koalas (Phascolarctos cinereus), especially in the male, are scarce. Sixty-two wild koalas were used in this study to define ultrasonographic protocols and features for the assessment of the male koala reproductive tract. Testis, epididymis and spermatic cord were examined using a hockey stick transducer. The normal koala testis showed a homogeneous echogenicity and an obvious hyper-echoic band corresponding to the tunica albuginea...
December 27, 2017: Research in Veterinary Science
Xue-Song Liu, Tao Chen, Li-Hong Gu, Yi-Fen Guo, Chun-Yang Li, Feng-Hua Li, Jian Wang
BACKGROUND AND AIM: Polypoid lesions of the gallbladder may be neoplastic or non-neoplastic. Correct diagnosis would help reduce unnecessary cholecystectomies. This study aimed to determine the predictive value of individual ultrasound characteristics for diagnosis of neoplastic polyps and to build a scoring system based on these characteristics. METHODS: A total of 109 patients with gallbladder polyps ≥ 6mm underwent conventional ultrasound examination and received finally diagnosis by pathological examination...
December 27, 2017: Journal of Gastroenterology and Hepatology
Shota Aoyama, Katsunori Ami, Akira Fukuda, Kenichiro Imai, Ja-Mun Chong, Masayuki Ando
BACKGROUND: Gastric lipomatosis is characterized by multiple gastric lipomas or a diffuse gastric infiltration of the submucosal or subserosal layer by the adipose tissue; diffuse-type gastric lipomatosis is an extremely rare condition. Here, we present the case of a patient with gastric lipomatosis treated by total gastrectomy. CASE PRESENTATION: A 54-year-old man diagnosed with gastric submucosal tumor in 2008 was referred to our hospital for further examination and treatment in September 2016...
December 16, 2017: Surgical Case Reports
Alfonso Fiorelli, Gaetana Messina, Elisabetta Frongillo, Marina Accardo, Marco Montella, Iacopo Panarese, Renato Franco, Mario Santini
OBJECTIVES: To evaluate the role of ultrasound in detecting and defining ground-glass opacities (GGOs) in surgical specimens of patients undergoing thoracoscopic diagnostic resection. METHODS: We performed an observational single-centre study of all consecutive patients undergoing thoracoscopic diagnostic resection of GGOs. In each patient, the specimen was scanned with ultrasound; then, a needle was inserted into the lesion to facilitate its detection by the pathologist...
December 8, 2017: Interactive Cardiovascular and Thoracic Surgery
Yanjun Xu, Rui Hou, Qijie Lu, Yifan Deng, Bin Hu
BACKGROUND: Renal cell carcinoma most commonly metastasizes to the lungs, skeleton or liver. Metastatic renal cell carcinoma to the breast is very rare, especially for clear cell carcinoma, and few cases regarding this condition have been reported. CASE PRESENTATION: The case we presented was a 68-year-old Chinese female with metastatic renal clear cell carcinoma of the left breast 10 years after a nephrectomy. Identification of the metastatic renal clear cell carcinoma in the breast required multiple breast imaging modalities...
November 2, 2017: Diagnostic Pathology
Hideaki Koga, Kei Yane, Hiroyuki Maguchi, Kuniyuki Takahashi, Akio Katanuma, Toshifumi Kin, Yoshiyasu Ambo, Yuko Omori, Toshiya Shinohara
We herein report a 69-year-old man who underwent right nephrectomy 1 year previously to remove renal cell carcinoma (RCC). On our examinations, contrast-enhanced computed tomography revealed a tumor with intensive early enhancement near the cystic duct of the gallbladder. Endoscopic ultrasonography showed a low echoic mass in the cystic duct. We diagnosed the patient's condition as cystic duct metastasis from RCC and performed open cholecystectomy. Histopathology indicated a metastatic tumor of clear cell RCC in the cystic duct wall...
November 1, 2017: Internal Medicine
Frederik Curvers, Nastaran Meschi, Anke Vanhoenacker, Olaf Strijbos, Maarten Van Mierlo, Paul Lambrechts
INTRODUCTION: The aim of this study was to present ultrasound imaging (UI) techniques as promising and safe tools for the follow-up of root-end surgery (RES) in vivo. METHODS: The study included 8 patients who underwent RES. All were followed up using UI at 1 week, 1 month, 2 months, 3 months, and 6 months (if necessary) after RES. The bony crypt was defined on the ultrasound image, and the following observations were made during follow-up: cortical bone interruption and surface area measurement of the residual echoic bony crypt image...
October 24, 2017: Journal of Endodontics
Shogo Kitahata, Atsushi Hiraoka, Masatoshi Kudo, Taisei Murakami, Marie Ochi, Hirofumi Izumoto, Hidetaro Ueki, Miho Kaneto, Toshihiko Aibiki, Tomonari Okudaira, Hiroka Yamago, Yuji Miyamoto, Ryuichiro Iwasaki, Hideomi Tomida, Kenichiro Mori, Masato Kishida, Hideki Miyata, Eiji Tsubouchi, Masashi Hirooka, Yohei Koizumi, Tomoyuki Ninomiya, Yoichi Hiasa, Kojiro Michitaka
AIM/BACKGROUND: Evaluations of abdominal ultrasonography (US) findings of primary and secondary tumor-forming hepatic malignant lymphoma (HML) have not been adequately reported. In this study, we elucidated US and contrast-enhanced US (CEUS) findings in patients with HML. MATERIALS/METHODS: From January 2006 to March 2017, 25 patients with HML were enrolled (primary 7, secondary 18), each of whom was diagnosed pathologically. They were divided into 2 groups based on tumor diameter (cutoff, 30 mm)...
2017: Digestive Diseases
Cheol Keun Park, Hyun-Soo Kim
A sclerosing stromal tumor is a very rare benign sex cord-stromal tumor of the ovary. Because its clinical presentation and imaging findings are similar to those of borderline or malignant epithelial tumors and other sex cord-stromal tumors, accurate preoperative clinical diagnosis can be difficult. The aim of this study was to analyze the clinicopathological characteristics of SSTs and examine the immunohistochemical expression TFE3, which has not been studied in SSTs. Our study cohort consisted of 9 patients diagnosed as having SST; the median age was 36 years...
October 2017: Anticancer Research
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